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提交 77872928 编写于 作者: T tamao
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8010506: Typos and errors in descriptions of vm options in globals.hpp 

Summary: Fix typos and errors in descriptions of vm options in globals.hpp
Reviewed-by: jmasa, jwilhelm
上级 2d1fc530
隐藏空白更改
内联 并排
Showing with 526 addition and 470 deletion
src/share/vm/runtime/globals.hpp
浏览文件 @ 77872928
...@@ -440,21 +440,21 @@ class CommandLineFlags { ...@@ -440,21 +440,21 @@ class CommandLineFlags {
#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
\ \
lp64_product(bool, UseCompressedOops, false, \ lp64_product(bool, UseCompressedOops, false, \
"Use 32-bit object references in 64-bit VM " \ "Use 32-bit object references in 64-bit VM. " \
"lp64_product means flag is always constant in 32 bit VM") \ "lp64_product means flag is always constant in 32 bit VM") \
\ \
lp64_product(bool, UseCompressedClassPointers, false, \ lp64_product(bool, UseCompressedClassPointers, false, \
"Use 32-bit class pointers in 64-bit VM " \ "Use 32-bit class pointers in 64-bit VM. " \
"lp64_product means flag is always constant in 32 bit VM") \ "lp64_product means flag is always constant in 32 bit VM") \
\ \
notproduct(bool, CheckCompressedOops, true, \ notproduct(bool, CheckCompressedOops, true, \
"generate checks in encoding/decoding code in debug VM") \ "Generate checks in encoding/decoding code in debug VM") \
\ \
product_pd(uintx, HeapBaseMinAddress, \ product_pd(uintx, HeapBaseMinAddress, \
"OS specific low limit for heap base address") \ "OS specific low limit for heap base address") \
\ \
diagnostic(bool, PrintCompressedOopsMode, false, \ diagnostic(bool, PrintCompressedOopsMode, false, \
"Print compressed oops base address and encoding mode") \ "Print compressed oops base address and encoding mode") \
\ \
lp64_product(intx, ObjectAlignmentInBytes, 8, \ lp64_product(intx, ObjectAlignmentInBytes, 8, \
"Default object alignment in bytes, 8 is minimum") \ "Default object alignment in bytes, 8 is minimum") \
...@@ -476,7 +476,7 @@ class CommandLineFlags { ...@@ -476,7 +476,7 @@ class CommandLineFlags {
"Use lwsync instruction if true, else use slower sync") \ "Use lwsync instruction if true, else use slower sync") \
\ \
develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ develop(bool, CleanChunkPoolAsync, falseInEmbedded, \
"Whether to clean the chunk pool asynchronously") \ "Clean the chunk pool asynchronously") \
\ \
/* Temporary: See 6948537 */ \ /* Temporary: See 6948537 */ \
experimental(bool, UseMemSetInBOT, true, \ experimental(bool, UseMemSetInBOT, true, \
...@@ -486,10 +486,12 @@ class CommandLineFlags { ...@@ -486,10 +486,12 @@ class CommandLineFlags {
"Enable normal processing of flags relating to field diagnostics")\ "Enable normal processing of flags relating to field diagnostics")\
\ \
experimental(bool, UnlockExperimentalVMOptions, false, \ experimental(bool, UnlockExperimentalVMOptions, false, \
"Enable normal processing of flags relating to experimental features")\ "Enable normal processing of flags relating to experimental " \
"features") \
\ \
product(bool, JavaMonitorsInStackTrace, true, \ product(bool, JavaMonitorsInStackTrace, true, \
"Print info. about Java monitor locks when the stacks are dumped")\ "Print information about Java monitor locks when the stacks are" \
"dumped") \
\ \
product_pd(bool, UseLargePages, \ product_pd(bool, UseLargePages, \
"Use large page memory") \ "Use large page memory") \
...@@ -501,7 +503,7 @@ class CommandLineFlags { ...@@ -501,7 +503,7 @@ class CommandLineFlags {
"Fail large pages individual allocation") \ "Fail large pages individual allocation") \
\ \
develop(bool, TracePageSizes, false, \ develop(bool, TracePageSizes, false, \
"Trace page size selection and usage.") \ "Trace page size selection and usage") \
\ \
product(bool, UseNUMA, false, \ product(bool, UseNUMA, false, \
"Use NUMA if available") \ "Use NUMA if available") \
...@@ -516,12 +518,12 @@ class CommandLineFlags { ...@@ -516,12 +518,12 @@ class CommandLineFlags {
"Force NUMA optimizations on single-node/UMA systems") \ "Force NUMA optimizations on single-node/UMA systems") \
\ \
product(uintx, NUMAChunkResizeWeight, 20, \ product(uintx, NUMAChunkResizeWeight, 20, \
"Percentage (0-100) used to weigh the current sample when " \ "Percentage (0-100) used to weigh the current sample when " \
"computing exponentially decaying average for " \ "computing exponentially decaying average for " \
"AdaptiveNUMAChunkSizing") \ "AdaptiveNUMAChunkSizing") \
\ \
product(uintx, NUMASpaceResizeRate, 1*G, \ product(uintx, NUMASpaceResizeRate, 1*G, \
"Do not reallocate more that this amount per collection") \ "Do not reallocate more than this amount per collection") \
\ \
product(bool, UseAdaptiveNUMAChunkSizing, true, \ product(bool, UseAdaptiveNUMAChunkSizing, true, \
"Enable adaptive chunk sizing for NUMA") \ "Enable adaptive chunk sizing for NUMA") \
...@@ -538,17 +540,17 @@ class CommandLineFlags { ...@@ -538,17 +540,17 @@ class CommandLineFlags {
product(intx, UseSSE, 99, \ product(intx, UseSSE, 99, \
"Highest supported SSE instructions set on x86/x64") \ "Highest supported SSE instructions set on x86/x64") \
\ \
product(bool, UseAES, false, \ product(bool, UseAES, false, \
"Control whether AES instructions can be used on x86/x64") \ "Control whether AES instructions can be used on x86/x64") \
\ \
product(uintx, LargePageSizeInBytes, 0, \ product(uintx, LargePageSizeInBytes, 0, \
"Large page size (0 to let VM choose the page size") \ "Large page size (0 to let VM choose the page size)") \
\ \
product(uintx, LargePageHeapSizeThreshold, 128*M, \ product(uintx, LargePageHeapSizeThreshold, 128*M, \
"Use large pages if max heap is at least this big") \ "Use large pages if maximum heap is at least this big") \
\ \
product(bool, ForceTimeHighResolution, false, \ product(bool, ForceTimeHighResolution, false, \
"Using high time resolution(For Win32 only)") \ "Using high time resolution (for Win32 only)") \
\ \
develop(bool, TraceItables, false, \ develop(bool, TraceItables, false, \
"Trace initialization and use of itables") \ "Trace initialization and use of itables") \
...@@ -564,10 +566,10 @@ class CommandLineFlags { ...@@ -564,10 +566,10 @@ class CommandLineFlags {
\ \
develop(bool, TraceLongCompiles, false, \ develop(bool, TraceLongCompiles, false, \
"Print out every time compilation is longer than " \ "Print out every time compilation is longer than " \
"a given threashold") \ "a given threshold") \
\ \
develop(bool, SafepointALot, false, \ develop(bool, SafepointALot, false, \
"Generates a lot of safepoints. Works with " \ "Generate a lot of safepoints. This works with " \
"GuaranteedSafepointInterval") \ "GuaranteedSafepointInterval") \
\ \
product_pd(bool, BackgroundCompilation, \ product_pd(bool, BackgroundCompilation, \
...@@ -575,13 +577,13 @@ class CommandLineFlags { ...@@ -575,13 +577,13 @@ class CommandLineFlags {
"compilation") \ "compilation") \
\ \
product(bool, PrintVMQWaitTime, false, \ product(bool, PrintVMQWaitTime, false, \
"Prints out the waiting time in VM operation queue") \ "Print out the waiting time in VM operation queue") \
\ \
develop(bool, NoYieldsInMicrolock, false, \ develop(bool, NoYieldsInMicrolock, false, \
"Disable yields in microlock") \ "Disable yields in microlock") \
\ \
develop(bool, TraceOopMapGeneration, false, \ develop(bool, TraceOopMapGeneration, false, \
"Shows oopmap generation") \ "Show OopMapGeneration") \
\ \
product(bool, MethodFlushing, true, \ product(bool, MethodFlushing, true, \
"Reclamation of zombie and not-entrant methods") \ "Reclamation of zombie and not-entrant methods") \
...@@ -590,10 +592,11 @@ class CommandLineFlags { ...@@ -590,10 +592,11 @@ class CommandLineFlags {
"Verify stack of each thread when it is entering a runtime call") \ "Verify stack of each thread when it is entering a runtime call") \
\ \
diagnostic(bool, ForceUnreachable, false, \ diagnostic(bool, ForceUnreachable, false, \
"Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ "Make all non code cache addresses to be unreachable by " \
"forcing use of 64bit literal fixups") \
\ \
notproduct(bool, StressDerivedPointers, false, \ notproduct(bool, StressDerivedPointers, false, \
"Force scavenge when a derived pointers is detected on stack " \ "Force scavenge when a derived pointer is detected on stack " \
"after rtm call") \ "after rtm call") \
\ \
develop(bool, TraceDerivedPointers, false, \ develop(bool, TraceDerivedPointers, false, \
...@@ -612,86 +615,86 @@ class CommandLineFlags { ...@@ -612,86 +615,86 @@ class CommandLineFlags {
"Use Inline Caches for virtual calls ") \ "Use Inline Caches for virtual calls ") \
\ \
develop(bool, InlineArrayCopy, true, \ develop(bool, InlineArrayCopy, true, \
"inline arraycopy native that is known to be part of " \ "Inline arraycopy native that is known to be part of " \
"base library DLL") \ "base library DLL") \
\ \
develop(bool, InlineObjectHash, true, \ develop(bool, InlineObjectHash, true, \
"inline Object::hashCode() native that is known to be part " \ "Inline Object::hashCode() native that is known to be part " \
"of base library DLL") \ "of base library DLL") \
\ \
develop(bool, InlineNatives, true, \ develop(bool, InlineNatives, true, \
"inline natives that are known to be part of base library DLL") \ "Inline natives that are known to be part of base library DLL") \
\ \
develop(bool, InlineMathNatives, true, \ develop(bool, InlineMathNatives, true, \
"inline SinD, CosD, etc.") \ "Inline SinD, CosD, etc.") \
\ \
develop(bool, InlineClassNatives, true, \ develop(bool, InlineClassNatives, true, \
"inline Class.isInstance, etc") \ "Inline Class.isInstance, etc") \
\ \
develop(bool, InlineThreadNatives, true, \ develop(bool, InlineThreadNatives, true, \
"inline Thread.currentThread, etc") \ "Inline Thread.currentThread, etc") \
\ \
develop(bool, InlineUnsafeOps, true, \ develop(bool, InlineUnsafeOps, true, \
"inline memory ops (native methods) from sun.misc.Unsafe") \ "Inline memory ops (native methods) from sun.misc.Unsafe") \
\ \
product(bool, CriticalJNINatives, true, \ product(bool, CriticalJNINatives, true, \
"check for critical JNI entry points") \ "Check for critical JNI entry points") \
\ \
notproduct(bool, StressCriticalJNINatives, false, \ notproduct(bool, StressCriticalJNINatives, false, \
"Exercise register saving code in critical natives") \ "Exercise register saving code in critical natives") \
\ \
product(bool, UseSSE42Intrinsics, false, \ product(bool, UseSSE42Intrinsics, false, \
"SSE4.2 versions of intrinsics") \ "SSE4.2 versions of intrinsics") \
\ \
product(bool, UseAESIntrinsics, false, \ product(bool, UseAESIntrinsics, false, \
"use intrinsics for AES versions of crypto") \ "Use intrinsics for AES versions of crypto") \
\ \
product(bool, UseCRC32Intrinsics, false, \ product(bool, UseCRC32Intrinsics, false, \
"use intrinsics for java.util.zip.CRC32") \ "use intrinsics for java.util.zip.CRC32") \
\ \
develop(bool, TraceCallFixup, false, \ develop(bool, TraceCallFixup, false, \
"traces all call fixups") \ "Trace all call fixups") \
\ \
develop(bool, DeoptimizeALot, false, \ develop(bool, DeoptimizeALot, false, \
"deoptimize at every exit from the runtime system") \ "Deoptimize at every exit from the runtime system") \
\ \
notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ notproduct(ccstrlist, DeoptimizeOnlyAt, "", \
"a comma separated list of bcis to deoptimize at") \ "A comma separated list of bcis to deoptimize at") \
\ \
product(bool, DeoptimizeRandom, false, \ product(bool, DeoptimizeRandom, false, \
"deoptimize random frames on random exit from the runtime system")\ "Deoptimize random frames on random exit from the runtime system")\
\ \
notproduct(bool, ZombieALot, false, \ notproduct(bool, ZombieALot, false, \
"creates zombies (non-entrant) at exit from the runt. system") \ "Create zombies (non-entrant) at exit from the runtime system") \
\ \
product(bool, UnlinkSymbolsALot, false, \ product(bool, UnlinkSymbolsALot, false, \
"unlink unreferenced symbols from the symbol table at safepoints")\ "Unlink unreferenced symbols from the symbol table at safepoints")\
\ \
notproduct(bool, WalkStackALot, false, \ notproduct(bool, WalkStackALot, false, \
"trace stack (no print) at every exit from the runtime system") \ "Trace stack (no print) at every exit from the runtime system") \
\ \
product(bool, Debugging, false, \ product(bool, Debugging, false, \
"set when executing debug methods in debug.ccp " \ "Set when executing debug methods in debug.cpp " \
"(to prevent triggering assertions)") \ "(to prevent triggering assertions)") \
\ \
notproduct(bool, StrictSafepointChecks, trueInDebug, \ notproduct(bool, StrictSafepointChecks, trueInDebug, \
"Enable strict checks that safepoints cannot happen for threads " \ "Enable strict checks that safepoints cannot happen for threads " \
"that used No_Safepoint_Verifier") \ "that use No_Safepoint_Verifier") \
\ \
notproduct(bool, VerifyLastFrame, false, \ notproduct(bool, VerifyLastFrame, false, \
"Verify oops on last frame on entry to VM") \ "Verify oops on last frame on entry to VM") \
\ \
develop(bool, TraceHandleAllocation, false, \ develop(bool, TraceHandleAllocation, false, \
"Prints out warnings when suspicious many handles are allocated") \ "Print out warnings when suspiciously many handles are allocated")\
\ \
product(bool, UseCompilerSafepoints, true, \ product(bool, UseCompilerSafepoints, true, \
"Stop at safepoints in compiled code") \ "Stop at safepoints in compiled code") \
\ \
product(bool, FailOverToOldVerifier, true, \ product(bool, FailOverToOldVerifier, true, \
"fail over to old verifier when split verifier fails") \ "Fail over to old verifier when split verifier fails") \
\ \
develop(bool, ShowSafepointMsgs, false, \ develop(bool, ShowSafepointMsgs, false, \
"Show msg. about safepoint synch.") \ "Show message about safepoint synchronization") \
\ \
product(bool, SafepointTimeout, false, \ product(bool, SafepointTimeout, false, \
"Time out and warn or fail after SafepointTimeoutDelay " \ "Time out and warn or fail after SafepointTimeoutDelay " \
...@@ -715,19 +718,19 @@ class CommandLineFlags { ...@@ -715,19 +718,19 @@ class CommandLineFlags {
"Trace external suspend wait failures") \ "Trace external suspend wait failures") \
\ \
product(bool, MaxFDLimit, true, \ product(bool, MaxFDLimit, true, \
"Bump the number of file descriptors to max in solaris.") \ "Bump the number of file descriptors to maximum in Solaris") \
\ \
diagnostic(bool, LogEvents, true, \ diagnostic(bool, LogEvents, true, \
"Enable the various ring buffer event logs") \ "Enable the various ring buffer event logs") \
\ \
diagnostic(uintx, LogEventsBufferEntries, 10, \ diagnostic(uintx, LogEventsBufferEntries, 10, \
"Enable the various ring buffer event logs") \ "Number of ring buffer event logs") \
\ \
product(bool, BytecodeVerificationRemote, true, \ product(bool, BytecodeVerificationRemote, true, \
"Enables the Java bytecode verifier for remote classes") \ "Enable the Java bytecode verifier for remote classes") \
\ \
product(bool, BytecodeVerificationLocal, false, \ product(bool, BytecodeVerificationLocal, false, \
"Enables the Java bytecode verifier for local classes") \ "Enable the Java bytecode verifier for local classes") \
\ \
develop(bool, ForceFloatExceptions, trueInDebug, \ develop(bool, ForceFloatExceptions, trueInDebug, \
"Force exceptions on FP stack under/overflow") \ "Force exceptions on FP stack under/overflow") \
...@@ -739,7 +742,7 @@ class CommandLineFlags { ...@@ -739,7 +742,7 @@ class CommandLineFlags {
"Trace java language assertions") \ "Trace java language assertions") \
\ \
notproduct(bool, CheckAssertionStatusDirectives, false, \ notproduct(bool, CheckAssertionStatusDirectives, false, \
"temporary - see javaClasses.cpp") \ "Temporary - see javaClasses.cpp") \
\ \
notproduct(bool, PrintMallocFree, false, \ notproduct(bool, PrintMallocFree, false, \
"Trace calls to C heap malloc/free allocation") \ "Trace calls to C heap malloc/free allocation") \
...@@ -758,16 +761,16 @@ class CommandLineFlags { ...@@ -758,16 +761,16 @@ class CommandLineFlags {
"entering the VM") \ "entering the VM") \
\ \
notproduct(bool, CheckOopishValues, false, \ notproduct(bool, CheckOopishValues, false, \
"Warn if value contains oop ( requires ZapDeadLocals)") \ "Warn if value contains oop (requires ZapDeadLocals)") \
\ \
develop(bool, UseMallocOnly, false, \ develop(bool, UseMallocOnly, false, \
"use only malloc/free for allocation (no resource area/arena)") \ "Use only malloc/free for allocation (no resource area/arena)") \
\ \
develop(bool, PrintMalloc, false, \ develop(bool, PrintMalloc, false, \
"print all malloc/free calls") \ "Print all malloc/free calls") \
\ \
develop(bool, PrintMallocStatistics, false, \ develop(bool, PrintMallocStatistics, false, \
"print malloc/free statistics") \ "Print malloc/free statistics") \
\ \
develop(bool, ZapResourceArea, trueInDebug, \ develop(bool, ZapResourceArea, trueInDebug, \
"Zap freed resource/arena space with 0xABABABAB") \ "Zap freed resource/arena space with 0xABABABAB") \
...@@ -779,7 +782,7 @@ class CommandLineFlags { ...@@ -779,7 +782,7 @@ class CommandLineFlags {
"Zap freed JNI handle space with 0xFEFEFEFE") \ "Zap freed JNI handle space with 0xFEFEFEFE") \
\ \
notproduct(bool, ZapStackSegments, trueInDebug, \ notproduct(bool, ZapStackSegments, trueInDebug, \
"Zap allocated/freed Stack segments with 0xFADFADED") \ "Zap allocated/freed stack segments with 0xFADFADED") \
\ \
develop(bool, ZapUnusedHeapArea, trueInDebug, \ develop(bool, ZapUnusedHeapArea, trueInDebug, \
"Zap unused heap space with 0xBAADBABE") \ "Zap unused heap space with 0xBAADBABE") \
...@@ -794,7 +797,7 @@ class CommandLineFlags { ...@@ -794,7 +797,7 @@ class CommandLineFlags {
"Zap filler objects with 0xDEAFBABE") \ "Zap filler objects with 0xDEAFBABE") \
\ \
develop(bool, PrintVMMessages, true, \ develop(bool, PrintVMMessages, true, \
"Print vm messages on console") \ "Print VM messages on console") \
\ \
product(bool, PrintGCApplicationConcurrentTime, false, \ product(bool, PrintGCApplicationConcurrentTime, false, \
"Print the time the application has been running") \ "Print the time the application has been running") \
...@@ -803,21 +806,21 @@ class CommandLineFlags { ...@@ -803,21 +806,21 @@ class CommandLineFlags {
"Print the time the application has been stopped") \ "Print the time the application has been stopped") \
\ \
diagnostic(bool, VerboseVerification, false, \ diagnostic(bool, VerboseVerification, false, \
"Display detailed verification details") \ "Display detailed verification details") \
\ \
notproduct(uintx, ErrorHandlerTest, 0, \ notproduct(uintx, ErrorHandlerTest, 0, \
"If > 0, provokes an error after VM initialization; the value" \ "If > 0, provokes an error after VM initialization; the value " \
"determines which error to provoke. See test_error_handler()" \ "determines which error to provoke. See test_error_handler() " \
"in debug.cpp.") \ "in debug.cpp.") \
\ \
develop(bool, Verbose, false, \ develop(bool, Verbose, false, \
"Prints additional debugging information from other modes") \ "Print additional debugging information from other modes") \
\ \
develop(bool, PrintMiscellaneous, false, \ develop(bool, PrintMiscellaneous, false, \
"Prints uncategorized debugging information (requires +Verbose)") \ "Print uncategorized debugging information (requires +Verbose)") \
\ \
develop(bool, WizardMode, false, \ develop(bool, WizardMode, false, \
"Prints much more debugging information") \ "Print much more debugging information") \
\ \
product(bool, ShowMessageBoxOnError, false, \ product(bool, ShowMessageBoxOnError, false, \
"Keep process alive on VM fatal error") \ "Keep process alive on VM fatal error") \
...@@ -829,7 +832,7 @@ class CommandLineFlags { ...@@ -829,7 +832,7 @@ class CommandLineFlags {
"Let VM fatal error propagate to the OS (ie. WER on Windows)") \ "Let VM fatal error propagate to the OS (ie. WER on Windows)") \
\ \
product(bool, SuppressFatalErrorMessage, false, \ product(bool, SuppressFatalErrorMessage, false, \
"Do NO Fatal Error report [Avoid deadlock]") \ "Report NO fatal error message (avoid deadlock)") \
\ \
product(ccstrlist, OnError, "", \ product(ccstrlist, OnError, "", \
"Run user-defined commands on fatal error; see VMError.cpp " \ "Run user-defined commands on fatal error; see VMError.cpp " \
...@@ -839,17 +842,17 @@ class CommandLineFlags { ...@@ -839,17 +842,17 @@ class CommandLineFlags {
"Run user-defined commands on first java.lang.OutOfMemoryError") \ "Run user-defined commands on first java.lang.OutOfMemoryError") \
\ \
manageable(bool, HeapDumpBeforeFullGC, false, \ manageable(bool, HeapDumpBeforeFullGC, false, \
"Dump heap to file before any major stop-world GC") \ "Dump heap to file before any major stop-the-world GC") \
\ \
manageable(bool, HeapDumpAfterFullGC, false, \ manageable(bool, HeapDumpAfterFullGC, false, \
"Dump heap to file after any major stop-world GC") \ "Dump heap to file after any major stop-the-world GC") \
\ \
manageable(bool, HeapDumpOnOutOfMemoryError, false, \ manageable(bool, HeapDumpOnOutOfMemoryError, false, \
"Dump heap to file when java.lang.OutOfMemoryError is thrown") \ "Dump heap to file when java.lang.OutOfMemoryError is thrown") \
\ \
manageable(ccstr, HeapDumpPath, NULL, \ manageable(ccstr, HeapDumpPath, NULL, \
"When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ "When HeapDumpOnOutOfMemoryError is on, the path (filename or " \
"directory) of the dump file (defaults to java_pid<pid>.hprof" \ "directory) of the dump file (defaults to java_pid<pid>.hprof " \
"in the working directory)") \ "in the working directory)") \
\ \
develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ develop(uintx, SegmentedHeapDumpThreshold, 2*G, \
...@@ -863,10 +866,10 @@ class CommandLineFlags { ...@@ -863,10 +866,10 @@ class CommandLineFlags {
"Execute breakpoint upon encountering VM warning") \ "Execute breakpoint upon encountering VM warning") \
\ \
develop(bool, TraceVMOperation, false, \ develop(bool, TraceVMOperation, false, \
"Trace vm operations") \ "Trace VM operations") \
\ \
develop(bool, UseFakeTimers, false, \ develop(bool, UseFakeTimers, false, \
"Tells whether the VM should use system time or a fake timer") \ "Tell whether the VM should use system time or a fake timer") \
\ \
product(ccstr, NativeMemoryTracking, "off", \ product(ccstr, NativeMemoryTracking, "off", \
"Native memory tracking options") \ "Native memory tracking options") \
...@@ -876,7 +879,7 @@ class CommandLineFlags { ...@@ -876,7 +879,7 @@ class CommandLineFlags {
\ \
diagnostic(bool, AutoShutdownNMT, true, \ diagnostic(bool, AutoShutdownNMT, true, \
"Automatically shutdown native memory tracking under stress " \ "Automatically shutdown native memory tracking under stress " \
"situation. When set to false, native memory tracking tries to " \ "situations. When set to false, native memory tracking tries to " \
"stay alive at the expense of JVM performance") \ "stay alive at the expense of JVM performance") \
\ \
diagnostic(bool, LogCompilation, false, \ diagnostic(bool, LogCompilation, false, \
...@@ -886,12 +889,12 @@ class CommandLineFlags { ...@@ -886,12 +889,12 @@ class CommandLineFlags {
"Print compilations") \ "Print compilations") \
\ \
diagnostic(bool, TraceNMethodInstalls, false, \ diagnostic(bool, TraceNMethodInstalls, false, \
"Trace nmethod intallation") \ "Trace nmethod installation") \
\ \
diagnostic(intx, ScavengeRootsInCode, 2, \ diagnostic(intx, ScavengeRootsInCode, 2, \
"0: do not allow scavengable oops in the code cache; " \ "0: do not allow scavengable oops in the code cache; " \
"1: allow scavenging from the code cache; " \ "1: allow scavenging from the code cache; " \
"2: emit as many constants as the compiler can see") \ "2: emit as many constants as the compiler can see") \
\ \
product(bool, AlwaysRestoreFPU, false, \ product(bool, AlwaysRestoreFPU, false, \
"Restore the FPU control word after every JNI call (expensive)") \ "Restore the FPU control word after every JNI call (expensive)") \
...@@ -912,7 +915,7 @@ class CommandLineFlags { ...@@ -912,7 +915,7 @@ class CommandLineFlags {
"Print assembly code (using external disassembler.so)") \ "Print assembly code (using external disassembler.so)") \
\ \
diagnostic(ccstr, PrintAssemblyOptions, NULL, \ diagnostic(ccstr, PrintAssemblyOptions, NULL, \
"Options string passed to disassembler.so") \ "Print options string passed to disassembler.so") \
\ \
diagnostic(bool, PrintNMethods, false, \ diagnostic(bool, PrintNMethods, false, \
"Print assembly code for nmethods when generated") \ "Print assembly code for nmethods when generated") \
...@@ -933,20 +936,21 @@ class CommandLineFlags { ...@@ -933,20 +936,21 @@ class CommandLineFlags {
"Print exception handler tables for all nmethods when generated") \ "Print exception handler tables for all nmethods when generated") \
\ \
develop(bool, StressCompiledExceptionHandlers, false, \ develop(bool, StressCompiledExceptionHandlers, false, \
"Exercise compiled exception handlers") \ "Exercise compiled exception handlers") \
\ \
develop(bool, InterceptOSException, false, \ develop(bool, InterceptOSException, false, \
"Starts debugger when an implicit OS (e.g., NULL) " \ "Start debugger when an implicit OS (e.g. NULL) " \
"exception happens") \ "exception happens") \
\ \
product(bool, PrintCodeCache, false, \ product(bool, PrintCodeCache, false, \
"Print the code cache memory usage when exiting") \ "Print the code cache memory usage when exiting") \
\ \
develop(bool, PrintCodeCache2, false, \ develop(bool, PrintCodeCache2, false, \
"Print detailed usage info on the code cache when exiting") \ "Print detailed usage information on the code cache when exiting")\
\ \
product(bool, PrintCodeCacheOnCompilation, false, \ product(bool, PrintCodeCacheOnCompilation, false, \
"Print the code cache memory usage each time a method is compiled") \ "Print the code cache memory usage each time a method is " \
"compiled") \
\ \
diagnostic(bool, PrintStubCode, false, \ diagnostic(bool, PrintStubCode, false, \
"Print generated stub code") \ "Print generated stub code") \
...@@ -958,40 +962,40 @@ class CommandLineFlags { ...@@ -958,40 +962,40 @@ class CommandLineFlags {
"Omit backtraces for some 'hot' exceptions in optimized code") \ "Omit backtraces for some 'hot' exceptions in optimized code") \
\ \
product(bool, ProfilerPrintByteCodeStatistics, false, \ product(bool, ProfilerPrintByteCodeStatistics, false, \
"Prints byte code statictics when dumping profiler output") \ "Print bytecode statistics when dumping profiler output") \
\ \
product(bool, ProfilerRecordPC, false, \ product(bool, ProfilerRecordPC, false, \
"Collects tick for each 16 byte interval of compiled code") \ "Collect ticks for each 16 byte interval of compiled code") \
\ \
product(bool, ProfileVM, false, \ product(bool, ProfileVM, false, \
"Profiles ticks that fall within VM (either in the VM Thread " \ "Profile ticks that fall within VM (either in the VM Thread " \
"or VM code called through stubs)") \ "or VM code called through stubs)") \
\ \
product(bool, ProfileIntervals, false, \ product(bool, ProfileIntervals, false, \
"Prints profiles for each interval (see ProfileIntervalsTicks)") \ "Print profiles for each interval (see ProfileIntervalsTicks)") \
\ \
notproduct(bool, ProfilerCheckIntervals, false, \ notproduct(bool, ProfilerCheckIntervals, false, \
"Collect and print info on spacing of profiler ticks") \ "Collect and print information on spacing of profiler ticks") \
\ \
develop(bool, PrintJVMWarnings, false, \ develop(bool, PrintJVMWarnings, false, \
"Prints warnings for unimplemented JVM functions") \ "Print warnings for unimplemented JVM functions") \
\ \
product(bool, PrintWarnings, true, \ product(bool, PrintWarnings, true, \
"Prints JVM warnings to output stream") \ "Print JVM warnings to output stream") \
\ \
notproduct(uintx, WarnOnStalledSpinLock, 0, \ notproduct(uintx, WarnOnStalledSpinLock, 0, \
"Prints warnings for stalled SpinLocks") \ "Print warnings for stalled SpinLocks") \
\ \
product(bool, RegisterFinalizersAtInit, true, \ product(bool, RegisterFinalizersAtInit, true, \
"Register finalizable objects at end of Object.<init> or " \ "Register finalizable objects at end of Object.<init> or " \
"after allocation") \ "after allocation") \
\ \
develop(bool, RegisterReferences, true, \ develop(bool, RegisterReferences, true, \
"Tells whether the VM should register soft/weak/final/phantom " \ "Tell whether the VM should register soft/weak/final/phantom " \
"references") \ "references") \
\ \
develop(bool, IgnoreRewrites, false, \ develop(bool, IgnoreRewrites, false, \
"Supress rewrites of bytecodes in the oopmap generator. " \ "Suppress rewrites of bytecodes in the oopmap generator. " \
"This is unsafe!") \ "This is unsafe!") \
\ \
develop(bool, PrintCodeCacheExtension, false, \ develop(bool, PrintCodeCacheExtension, false, \
...@@ -1001,8 +1005,7 @@ class CommandLineFlags { ...@@ -1001,8 +1005,7 @@ class CommandLineFlags {
"Enable the security JVM functions") \ "Enable the security JVM functions") \
\ \
develop(bool, ProtectionDomainVerification, true, \ develop(bool, ProtectionDomainVerification, true, \
"Verifies protection domain before resolution in system " \ "Verify protection domain before resolution in system dictionary")\
"dictionary") \
\ \
product(bool, ClassUnloading, true, \ product(bool, ClassUnloading, true, \
"Do unloading of classes") \ "Do unloading of classes") \
...@@ -1015,14 +1018,14 @@ class CommandLineFlags { ...@@ -1015,14 +1018,14 @@ class CommandLineFlags {
"Write memory usage profiling to log file") \ "Write memory usage profiling to log file") \
\ \
notproduct(bool, PrintSystemDictionaryAtExit, false, \ notproduct(bool, PrintSystemDictionaryAtExit, false, \
"Prints the system dictionary at exit") \ "Print the system dictionary at exit") \
\ \
experimental(intx, PredictedLoadedClassCount, 0, \ experimental(intx, PredictedLoadedClassCount, 0, \
"Experimental: Tune loaded class cache starting size.") \ "Experimental: Tune loaded class cache starting size") \
\ \
diagnostic(bool, UnsyncloadClass, false, \ diagnostic(bool, UnsyncloadClass, false, \
"Unstable: VM calls loadClass unsynchronized. Custom " \ "Unstable: VM calls loadClass unsynchronized. Custom " \
"class loader must call VM synchronized for findClass " \ "class loader must call VM synchronized for findClass " \
"and defineClass.") \ "and defineClass.") \
\ \
product(bool, AlwaysLockClassLoader, false, \ product(bool, AlwaysLockClassLoader, false, \
...@@ -1038,22 +1041,22 @@ class CommandLineFlags { ...@@ -1038,22 +1041,22 @@ class CommandLineFlags {
"Call loadClassInternal() rather than loadClass()") \ "Call loadClassInternal() rather than loadClass()") \
\ \
product_pd(bool, DontYieldALot, \ product_pd(bool, DontYieldALot, \
"Throw away obvious excess yield calls (for SOLARIS only)") \ "Throw away obvious excess yield calls (for Solaris only)") \
\ \
product_pd(bool, ConvertSleepToYield, \ product_pd(bool, ConvertSleepToYield, \
"Converts sleep(0) to thread yield " \ "Convert sleep(0) to thread yield " \
"(may be off for SOLARIS to improve GUI)") \ "(may be off for Solaris to improve GUI)") \
\ \
product(bool, ConvertYieldToSleep, false, \ product(bool, ConvertYieldToSleep, false, \
"Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ "Convert yield to a sleep of MinSleepInterval to simulate Win32 " \
"behavior (SOLARIS only)") \ "behavior (Solaris only)") \
\ \
product(bool, UseBoundThreads, true, \ product(bool, UseBoundThreads, true, \
"Bind user level threads to kernel threads (for SOLARIS only)") \ "Bind user level threads to kernel threads (for Solaris only)") \
\ \
develop(bool, UseDetachedThreads, true, \ develop(bool, UseDetachedThreads, true, \
"Use detached threads that are recycled upon termination " \ "Use detached threads that are recycled upon termination " \
"(for SOLARIS only)") \ "(for Solaris only)") \
\ \
product(bool, UseLWPSynchronization, true, \ product(bool, UseLWPSynchronization, true, \
"Use LWP-based instead of libthread-based synchronization " \ "Use LWP-based instead of libthread-based synchronization " \
...@@ -1063,41 +1066,43 @@ class CommandLineFlags { ...@@ -1063,41 +1066,43 @@ class CommandLineFlags {
"(Unstable) Various monitor synchronization tunables") \ "(Unstable) Various monitor synchronization tunables") \
\ \
product(intx, EmitSync, 0, \ product(intx, EmitSync, 0, \
"(Unsafe,Unstable) " \ "(Unsafe, Unstable) " \
" Controls emission of inline sync fast-path code") \ "Control emission of inline sync fast-path code") \
\ \
product(intx, MonitorBound, 0, "Bound Monitor population") \ product(intx, MonitorBound, 0, "Bound Monitor population") \
\ \
product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \
\ \
product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ product(intx, SyncFlags, 0, "(Unsafe, Unstable) Experimental Sync flags") \
\ \
product(intx, SyncVerbose, 0, "(Unstable)" ) \ product(intx, SyncVerbose, 0, "(Unstable)") \
\ \
product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ product(intx, ClearFPUAtPark, 0, "(Unsafe, Unstable)") \
\ \
product(intx, hashCode, 5, \ product(intx, hashCode, 5, \
"(Unstable) select hashCode generation algorithm" ) \ "(Unstable) select hashCode generation algorithm") \
\ \
product(intx, WorkAroundNPTLTimedWaitHang, 1, \ product(intx, WorkAroundNPTLTimedWaitHang, 1, \
"(Unstable, Linux-specific)" \ "(Unstable, Linux-specific) " \
" avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ "avoid NPTL-FUTEX hang pthread_cond_timedwait") \
\ \
product(bool, FilterSpuriousWakeups, true, \ product(bool, FilterSpuriousWakeups, true, \
"Prevent spurious or premature wakeups from object.wait " \ "Prevent spurious or premature wakeups from object.wait " \
"(Solaris only)") \ "(Solaris only)") \
\ \
product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ product(intx, NativeMonitorTimeout, -1, "(Unstable)") \
product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ \
product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ product(intx, NativeMonitorFlags, 0, "(Unstable)") \
\
product(intx, NativeMonitorSpinLimit, 20, "(Unstable)") \
\ \
develop(bool, UsePthreads, false, \ develop(bool, UsePthreads, false, \
"Use pthread-based instead of libthread-based synchronization " \ "Use pthread-based instead of libthread-based synchronization " \
"(SPARC only)") \ "(SPARC only)") \
\ \
product(bool, AdjustConcurrency, false, \ product(bool, AdjustConcurrency, false, \
"call thr_setconcurrency at thread create time to avoid " \ "Call thr_setconcurrency at thread creation time to avoid " \
"LWP starvation on MP systems (For Solaris Only)") \ "LWP starvation on MP systems (for Solaris Only)") \
\ \
product(bool, ReduceSignalUsage, false, \ product(bool, ReduceSignalUsage, false, \
"Reduce the use of OS signals in Java and/or the VM") \ "Reduce the use of OS signals in Java and/or the VM") \
...@@ -1106,13 +1111,14 @@ class CommandLineFlags { ...@@ -1106,13 +1111,14 @@ class CommandLineFlags {
"Share vtable stubs (smaller code but worse branch prediction") \ "Share vtable stubs (smaller code but worse branch prediction") \
\ \
develop(bool, LoadLineNumberTables, true, \ develop(bool, LoadLineNumberTables, true, \
"Tells whether the class file parser loads line number tables") \ "Tell whether the class file parser loads line number tables") \
\ \
develop(bool, LoadLocalVariableTables, true, \ develop(bool, LoadLocalVariableTables, true, \
"Tells whether the class file parser loads local variable tables")\ "Tell whether the class file parser loads local variable tables") \
\ \
develop(bool, LoadLocalVariableTypeTables, true, \ develop(bool, LoadLocalVariableTypeTables, true, \
"Tells whether the class file parser loads local variable type tables")\ "Tell whether the class file parser loads local variable type" \
"tables") \
\ \
product(bool, AllowUserSignalHandlers, false, \ product(bool, AllowUserSignalHandlers, false, \
"Do not complain if the application installs signal handlers " \ "Do not complain if the application installs signal handlers " \
...@@ -1143,10 +1149,12 @@ class CommandLineFlags { ...@@ -1143,10 +1149,12 @@ class CommandLineFlags {
\ \
product(bool, EagerXrunInit, false, \ product(bool, EagerXrunInit, false, \
"Eagerly initialize -Xrun libraries; allows startup profiling, " \ "Eagerly initialize -Xrun libraries; allows startup profiling, " \
" but not all -Xrun libraries may support the state of the VM at this time") \ "but not all -Xrun libraries may support the state of the VM " \
"at this time") \
\ \
product(bool, PreserveAllAnnotations, false, \ product(bool, PreserveAllAnnotations, false, \
"Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ "Preserve RuntimeInvisibleAnnotations as well " \
"as RuntimeVisibleAnnotations") \
\ \
develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
"Number of OutOfMemoryErrors preallocated with backtrace") \ "Number of OutOfMemoryErrors preallocated with backtrace") \
...@@ -1221,7 +1229,7 @@ class CommandLineFlags { ...@@ -1221,7 +1229,7 @@ class CommandLineFlags {
"Trace level for JVMTI RedefineClasses") \ "Trace level for JVMTI RedefineClasses") \
\ \
develop(bool, StressMethodComparator, false, \ develop(bool, StressMethodComparator, false, \
"run the MethodComparator on all loaded methods") \ "Run the MethodComparator on all loaded methods") \
\ \
/* change to false by default sometime after Mustang */ \ /* change to false by default sometime after Mustang */ \
product(bool, VerifyMergedCPBytecodes, true, \ product(bool, VerifyMergedCPBytecodes, true, \
...@@ -1255,7 +1263,7 @@ class CommandLineFlags { ...@@ -1255,7 +1263,7 @@ class CommandLineFlags {
"Trace dependencies") \ "Trace dependencies") \
\ \
develop(bool, VerifyDependencies, trueInDebug, \ develop(bool, VerifyDependencies, trueInDebug, \
"Exercise and verify the compilation dependency mechanism") \ "Exercise and verify the compilation dependency mechanism") \
\ \
develop(bool, TraceNewOopMapGeneration, false, \ develop(bool, TraceNewOopMapGeneration, false, \
"Trace OopMapGeneration") \ "Trace OopMapGeneration") \
...@@ -1273,7 +1281,7 @@ class CommandLineFlags { ...@@ -1273,7 +1281,7 @@ class CommandLineFlags {
"Trace monitor matching failures during OopMapGeneration") \ "Trace monitor matching failures during OopMapGeneration") \
\ \
develop(bool, TraceOopMapRewrites, false, \ develop(bool, TraceOopMapRewrites, false, \
"Trace rewritting of method oops during oop map generation") \ "Trace rewriting of method oops during oop map generation") \
\ \
develop(bool, TraceSafepoint, false, \ develop(bool, TraceSafepoint, false, \
"Trace safepoint operations") \ "Trace safepoint operations") \
...@@ -1291,10 +1299,10 @@ class CommandLineFlags { ...@@ -1291,10 +1299,10 @@ class CommandLineFlags {
"Trace setup time") \ "Trace setup time") \
\ \
develop(bool, TraceProtectionDomainVerification, false, \ develop(bool, TraceProtectionDomainVerification, false, \
"Trace protection domain verifcation") \ "Trace protection domain verification") \
\ \
develop(bool, TraceClearedExceptions, false, \ develop(bool, TraceClearedExceptions, false, \
"Prints when an exception is forcibly cleared") \ "Print when an exception is forcibly cleared") \
\ \
product(bool, TraceClassResolution, false, \ product(bool, TraceClassResolution, false, \
"Trace all constant pool resolutions (for debugging)") \ "Trace all constant pool resolutions (for debugging)") \
...@@ -1308,7 +1316,7 @@ class CommandLineFlags { ...@@ -1308,7 +1316,7 @@ class CommandLineFlags {
/* gc */ \ /* gc */ \
\ \
product(bool, UseSerialGC, false, \ product(bool, UseSerialGC, false, \
"Use the serial garbage collector") \ "Use the Serial garbage collector") \
\ \
product(bool, UseG1GC, false, \ product(bool, UseG1GC, false, \
"Use the Garbage-First garbage collector") \ "Use the Garbage-First garbage collector") \
...@@ -1327,16 +1335,16 @@ class CommandLineFlags { ...@@ -1327,16 +1335,16 @@ class CommandLineFlags {
"The collection count for the first maximum compaction") \ "The collection count for the first maximum compaction") \
\ \
product(bool, UseMaximumCompactionOnSystemGC, true, \ product(bool, UseMaximumCompactionOnSystemGC, true, \
"In the Parallel Old garbage collector maximum compaction for " \ "Use maximum compaction in the Parallel Old garbage collector " \
"a system GC") \ "for a system GC") \
\ \
product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ product(uintx, ParallelOldDeadWoodLimiterMean, 50, \
"The mean used by the par compact dead wood" \ "The mean used by the parallel compact dead wood " \
"limiter (a number between 0-100).") \ "limiter (a number between 0-100)") \
\ \
product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \
"The standard deviation used by the par compact dead wood" \ "The standard deviation used by the parallel compact dead wood " \
"limiter (a number between 0-100).") \ "limiter (a number between 0-100)") \
\ \
product(uintx, ParallelGCThreads, 0, \ product(uintx, ParallelGCThreads, 0, \
"Number of parallel threads parallel gc will use") \ "Number of parallel threads parallel gc will use") \
...@@ -1346,7 +1354,7 @@ class CommandLineFlags { ...@@ -1346,7 +1354,7 @@ class CommandLineFlags {
"parallel gc will use") \ "parallel gc will use") \
\ \
diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \
"Force dynamic selection of the number of" \ "Force dynamic selection of the number of " \
"parallel threads parallel gc will use to aid debugging") \ "parallel threads parallel gc will use to aid debugging") \
\ \
product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \
...@@ -1357,7 +1365,7 @@ class CommandLineFlags { ...@@ -1357,7 +1365,7 @@ class CommandLineFlags {
"Trace the dynamic GC thread usage") \ "Trace the dynamic GC thread usage") \
\ \
develop(bool, ParallelOldGCSplitALot, false, \ develop(bool, ParallelOldGCSplitALot, false, \
"Provoke splitting (copying data from a young gen space to" \ "Provoke splitting (copying data from a young gen space to " \
"multiple destination spaces)") \ "multiple destination spaces)") \
\ \
develop(uintx, ParallelOldGCSplitInterval, 3, \ develop(uintx, ParallelOldGCSplitInterval, 3, \
...@@ -1367,19 +1375,19 @@ class CommandLineFlags { ...@@ -1367,19 +1375,19 @@ class CommandLineFlags {
"Number of threads concurrent gc will use") \ "Number of threads concurrent gc will use") \
\ \
product(uintx, YoungPLABSize, 4096, \ product(uintx, YoungPLABSize, 4096, \
"Size of young gen promotion labs (in HeapWords)") \ "Size of young gen promotion LAB's (in HeapWords)") \
\ \
product(uintx, OldPLABSize, 1024, \ product(uintx, OldPLABSize, 1024, \
"Size of old gen promotion labs (in HeapWords)") \ "Size of old gen promotion LAB's (in HeapWords)") \
\ \
product(uintx, GCTaskTimeStampEntries, 200, \ product(uintx, GCTaskTimeStampEntries, 200, \
"Number of time stamp entries per gc worker thread") \ "Number of time stamp entries per gc worker thread") \
\ \
product(bool, AlwaysTenure, false, \ product(bool, AlwaysTenure, false, \
"Always tenure objects in eden. (ParallelGC only)") \ "Always tenure objects in eden (ParallelGC only)") \
\ \
product(bool, NeverTenure, false, \ product(bool, NeverTenure, false, \
"Never tenure objects in eden, May tenure on overflow " \ "Never tenure objects in eden, may tenure on overflow " \
"(ParallelGC only)") \ "(ParallelGC only)") \
\ \
product(bool, ScavengeBeforeFullGC, true, \ product(bool, ScavengeBeforeFullGC, true, \
...@@ -1387,14 +1395,14 @@ class CommandLineFlags { ...@@ -1387,14 +1395,14 @@ class CommandLineFlags {
"used with UseParallelGC") \ "used with UseParallelGC") \
\ \
develop(bool, ScavengeWithObjectsInToSpace, false, \ develop(bool, ScavengeWithObjectsInToSpace, false, \
"Allow scavenges to occur when to_space contains objects.") \ "Allow scavenges to occur when to-space contains objects") \
\ \
product(bool, UseConcMarkSweepGC, false, \ product(bool, UseConcMarkSweepGC, false, \
"Use Concurrent Mark-Sweep GC in the old generation") \ "Use Concurrent Mark-Sweep GC in the old generation") \
\ \
product(bool, ExplicitGCInvokesConcurrent, false, \ product(bool, ExplicitGCInvokesConcurrent, false, \
"A System.gc() request invokes a concurrent collection;" \ "A System.gc() request invokes a concurrent collection; " \
" (effective only when UseConcMarkSweepGC)") \ "(effective only when UseConcMarkSweepGC)") \
\ \
product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \
"A System.gc() request invokes a concurrent collection and " \ "A System.gc() request invokes a concurrent collection and " \
...@@ -1402,19 +1410,19 @@ class CommandLineFlags { ...@@ -1402,19 +1410,19 @@ class CommandLineFlags {
"(effective only when UseConcMarkSweepGC)") \ "(effective only when UseConcMarkSweepGC)") \
\ \
product(bool, GCLockerInvokesConcurrent, false, \ product(bool, GCLockerInvokesConcurrent, false, \
"The exit of a JNI CS necessitating a scavenge also" \ "The exit of a JNI critical section necessitating a scavenge, " \
" kicks off a bkgrd concurrent collection") \ "also kicks off a background concurrent collection") \
\ \
product(uintx, GCLockerEdenExpansionPercent, 5, \ product(uintx, GCLockerEdenExpansionPercent, 5, \
"How much the GC can expand the eden by while the GC locker " \ "How much the GC can expand the eden by while the GC locker " \
"is active (as a percentage)") \ "is active (as a percentage)") \
\ \
diagnostic(intx, GCLockerRetryAllocationCount, 2, \ diagnostic(intx, GCLockerRetryAllocationCount, 2, \
"Number of times to retry allocations when" \ "Number of times to retry allocations when " \
" blocked by the GC locker") \ "blocked by the GC locker") \
\ \
develop(bool, UseCMSAdaptiveFreeLists, true, \ develop(bool, UseCMSAdaptiveFreeLists, true, \
"Use Adaptive Free Lists in the CMS generation") \ "Use adaptive free lists in the CMS generation") \
\ \
develop(bool, UseAsyncConcMarkSweepGC, true, \ develop(bool, UseAsyncConcMarkSweepGC, true, \
"Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\
...@@ -1429,44 +1437,46 @@ class CommandLineFlags { ...@@ -1429,44 +1437,46 @@ class CommandLineFlags {
"Use passing of collection from background to foreground") \ "Use passing of collection from background to foreground") \
\ \
product(bool, UseParNewGC, false, \ product(bool, UseParNewGC, false, \
"Use parallel threads in the new generation.") \ "Use parallel threads in the new generation") \
\ \
product(bool, ParallelGCVerbose, false, \ product(bool, ParallelGCVerbose, false, \
"Verbose output for parallel GC.") \ "Verbose output for parallel gc") \
\ \
product(uintx, ParallelGCBufferWastePct, 10, \ product(uintx, ParallelGCBufferWastePct, 10, \
"Wasted fraction of parallel allocation buffer.") \ "Wasted fraction of parallel allocation buffer") \
\ \
diagnostic(bool, ParallelGCRetainPLAB, false, \ diagnostic(bool, ParallelGCRetainPLAB, false, \
"Retain parallel allocation buffers across scavenges; " \ "Retain parallel allocation buffers across scavenges; " \
" -- disabled because this currently conflicts with " \ "it is disabled because this currently conflicts with " \
" parallel card scanning under certain conditions ") \ "parallel card scanning under certain conditions.") \
\ \
product(uintx, TargetPLABWastePct, 10, \ product(uintx, TargetPLABWastePct, 10, \
"Target wasted space in last buffer as percent of overall " \ "Target wasted space in last buffer as percent of overall " \
"allocation") \ "allocation") \
\ \
product(uintx, PLABWeight, 75, \ product(uintx, PLABWeight, 75, \
"Percentage (0-100) used to weight the current sample when" \ "Percentage (0-100) used to weigh the current sample when " \
"computing exponentially decaying average for ResizePLAB.") \ "computing exponentially decaying average for ResizePLAB") \
\ \
product(bool, ResizePLAB, true, \ product(bool, ResizePLAB, true, \
"Dynamically resize (survivor space) promotion labs") \ "Dynamically resize (survivor space) promotion LAB's") \
\ \
product(bool, PrintPLAB, false, \ product(bool, PrintPLAB, false, \
"Print (survivor space) promotion labs sizing decisions") \ "Print (survivor space) promotion LAB's sizing decisions") \
\ \
product(intx, ParGCArrayScanChunk, 50, \ product(intx, ParGCArrayScanChunk, 50, \
"Scan a subset and push remainder, if array is bigger than this") \ "Scan a subset of object array and push remainder, if array is " \
"bigger than this") \
\ \
product(bool, ParGCUseLocalOverflow, false, \ product(bool, ParGCUseLocalOverflow, false, \
"Instead of a global overflow list, use local overflow stacks") \ "Instead of a global overflow list, use local overflow stacks") \
\ \
product(bool, ParGCTrimOverflow, true, \ product(bool, ParGCTrimOverflow, true, \
"Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ "Eagerly trim the local overflow lists " \
"(when ParGCUseLocalOverflow)") \
\ \
notproduct(bool, ParGCWorkQueueOverflowALot, false, \ notproduct(bool, ParGCWorkQueueOverflowALot, false, \
"Whether we should simulate work queue overflow in ParNew") \ "Simulate work queue overflow in ParNew") \
\ \
notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \
"An `interval' counter that determines how frequently " \ "An `interval' counter that determines how frequently " \
...@@ -1484,43 +1494,46 @@ class CommandLineFlags { ...@@ -1484,43 +1494,46 @@ class CommandLineFlags {
"during card table scanning") \ "during card table scanning") \
\ \
product(uintx, CMSParPromoteBlocksToClaim, 16, \ product(uintx, CMSParPromoteBlocksToClaim, 16, \
"Number of blocks to attempt to claim when refilling CMS LAB for "\ "Number of blocks to attempt to claim when refilling CMS LAB's " \
"parallel GC.") \ "for parallel GC") \
\ \
product(uintx, OldPLABWeight, 50, \ product(uintx, OldPLABWeight, 50, \
"Percentage (0-100) used to weight the current sample when" \ "Percentage (0-100) used to weight the current sample when " \
"computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ "computing exponentially decaying average for resizing " \
"CMSParPromoteBlocksToClaim") \
\ \
product(bool, ResizeOldPLAB, true, \ product(bool, ResizeOldPLAB, true, \
"Dynamically resize (old gen) promotion labs") \ "Dynamically resize (old gen) promotion LAB's") \
\ \
product(bool, PrintOldPLAB, false, \ product(bool, PrintOldPLAB, false, \
"Print (old gen) promotion labs sizing decisions") \ "Print (old gen) promotion LAB's sizing decisions") \
\ \
product(uintx, CMSOldPLABMin, 16, \ product(uintx, CMSOldPLABMin, 16, \
"Min size of CMS gen promotion lab caches per worker per blksize")\ "Minimum size of CMS gen promotion LAB caches per worker " \
"per block size") \
\ \
product(uintx, CMSOldPLABMax, 1024, \ product(uintx, CMSOldPLABMax, 1024, \
"Max size of CMS gen promotion lab caches per worker per blksize")\ "Maximum size of CMS gen promotion LAB caches per worker " \
"per block size") \
\ \
product(uintx, CMSOldPLABNumRefills, 4, \ product(uintx, CMSOldPLABNumRefills, 4, \
"Nominal number of refills of CMS gen promotion lab cache" \ "Nominal number of refills of CMS gen promotion LAB cache " \
" per worker per block size") \ "per worker per block size") \
\ \
product(bool, CMSOldPLABResizeQuicker, false, \ product(bool, CMSOldPLABResizeQuicker, false, \
"Whether to react on-the-fly during a scavenge to a sudden" \ "React on-the-fly during a scavenge to a sudden " \
" change in block demand rate") \ "change in block demand rate") \
\ \
product(uintx, CMSOldPLABToleranceFactor, 4, \ product(uintx, CMSOldPLABToleranceFactor, 4, \
"The tolerance of the phase-change detector for on-the-fly" \ "The tolerance of the phase-change detector for on-the-fly " \
" PLAB resizing during a scavenge") \ "PLAB resizing during a scavenge") \
\ \
product(uintx, CMSOldPLABReactivityFactor, 2, \ product(uintx, CMSOldPLABReactivityFactor, 2, \
"The gain in the feedback loop for on-the-fly PLAB resizing" \ "The gain in the feedback loop for on-the-fly PLAB resizing " \
" during a scavenge") \ "during a scavenge") \
\ \
product(bool, AlwaysPreTouch, false, \ product(bool, AlwaysPreTouch, false, \
"It forces all freshly committed pages to be pre-touched.") \ "Force all freshly committed pages to be pre-touched") \
\ \
product_pd(uintx, CMSYoungGenPerWorker, \ product_pd(uintx, CMSYoungGenPerWorker, \
"The maximum size of young gen chosen by default per GC worker " \ "The maximum size of young gen chosen by default per GC worker " \
...@@ -1530,64 +1543,67 @@ class CommandLineFlags { ...@@ -1530,64 +1543,67 @@ class CommandLineFlags {
"Whether CMS GC should operate in \"incremental\" mode") \ "Whether CMS GC should operate in \"incremental\" mode") \
\ \
product(uintx, CMSIncrementalDutyCycle, 10, \ product(uintx, CMSIncrementalDutyCycle, 10, \
"CMS incremental mode duty cycle (a percentage, 0-100). If" \ "Percentage (0-100) of CMS incremental mode duty cycle. If " \
"CMSIncrementalPacing is enabled, then this is just the initial" \ "CMSIncrementalPacing is enabled, then this is just the initial " \
"value") \ "value.") \
\ \
product(bool, CMSIncrementalPacing, true, \ product(bool, CMSIncrementalPacing, true, \
"Whether the CMS incremental mode duty cycle should be " \ "Whether the CMS incremental mode duty cycle should be " \
"automatically adjusted") \ "automatically adjusted") \
\ \
product(uintx, CMSIncrementalDutyCycleMin, 0, \ product(uintx, CMSIncrementalDutyCycleMin, 0, \
"Lower bound on the duty cycle when CMSIncrementalPacing is " \ "Minimum percentage (0-100) of the CMS incremental duty cycle " \
"enabled (a percentage, 0-100)") \ "used when CMSIncrementalPacing is enabled") \
\ \
product(uintx, CMSIncrementalSafetyFactor, 10, \ product(uintx, CMSIncrementalSafetyFactor, 10, \
"Percentage (0-100) used to add conservatism when computing the " \ "Percentage (0-100) used to add conservatism when computing the " \
"duty cycle") \ "duty cycle") \
\ \
product(uintx, CMSIncrementalOffset, 0, \ product(uintx, CMSIncrementalOffset, 0, \
"Percentage (0-100) by which the CMS incremental mode duty cycle" \ "Percentage (0-100) by which the CMS incremental mode duty cycle "\
" is shifted to the right within the period between young GCs") \ "is shifted to the right within the period between young GCs") \
\ \
product(uintx, CMSExpAvgFactor, 50, \ product(uintx, CMSExpAvgFactor, 50, \
"Percentage (0-100) used to weight the current sample when" \ "Percentage (0-100) used to weigh the current sample when " \
"computing exponential averages for CMS statistics.") \ "computing exponential averages for CMS statistics") \
\ \
product(uintx, CMS_FLSWeight, 75, \ product(uintx, CMS_FLSWeight, 75, \
"Percentage (0-100) used to weight the current sample when" \ "Percentage (0-100) used to weigh the current sample when " \
"computing exponentially decating averages for CMS FLS statistics.") \ "computing exponentially decaying averages for CMS FLS " \
"statistics") \
\ \
product(uintx, CMS_FLSPadding, 1, \ product(uintx, CMS_FLSPadding, 1, \
"The multiple of deviation from mean to use for buffering" \ "The multiple of deviation from mean to use for buffering " \
"against volatility in free list demand.") \ "against volatility in free list demand") \
\ \
product(uintx, FLSCoalescePolicy, 2, \ product(uintx, FLSCoalescePolicy, 2, \
"CMS: Aggression level for coalescing, increasing from 0 to 4") \ "CMS: aggressiveness level for coalescing, increasing " \
"from 0 to 4") \
\ \
product(bool, FLSAlwaysCoalesceLarge, false, \ product(bool, FLSAlwaysCoalesceLarge, false, \
"CMS: Larger free blocks are always available for coalescing") \ "CMS: larger free blocks are always available for coalescing") \
\ \
product(double, FLSLargestBlockCoalesceProximity, 0.99, \ product(double, FLSLargestBlockCoalesceProximity, 0.99, \
"CMS: the smaller the percentage the greater the coalition force")\ "CMS: the smaller the percentage the greater the coalescing " \
"force") \
\ \
product(double, CMSSmallCoalSurplusPercent, 1.05, \ product(double, CMSSmallCoalSurplusPercent, 1.05, \
"CMS: the factor by which to inflate estimated demand of small" \ "CMS: the factor by which to inflate estimated demand of small " \
" block sizes to prevent coalescing with an adjoining block") \ "block sizes to prevent coalescing with an adjoining block") \
\ \
product(double, CMSLargeCoalSurplusPercent, 0.95, \ product(double, CMSLargeCoalSurplusPercent, 0.95, \
"CMS: the factor by which to inflate estimated demand of large" \ "CMS: the factor by which to inflate estimated demand of large " \
" block sizes to prevent coalescing with an adjoining block") \ "block sizes to prevent coalescing with an adjoining block") \
\ \
product(double, CMSSmallSplitSurplusPercent, 1.10, \ product(double, CMSSmallSplitSurplusPercent, 1.10, \
"CMS: the factor by which to inflate estimated demand of small" \ "CMS: the factor by which to inflate estimated demand of small " \
" block sizes to prevent splitting to supply demand for smaller" \ "block sizes to prevent splitting to supply demand for smaller " \
" blocks") \ "blocks") \
\ \
product(double, CMSLargeSplitSurplusPercent, 1.00, \ product(double, CMSLargeSplitSurplusPercent, 1.00, \
"CMS: the factor by which to inflate estimated demand of large" \ "CMS: the factor by which to inflate estimated demand of large " \
" block sizes to prevent splitting to supply demand for smaller" \ "block sizes to prevent splitting to supply demand for smaller " \
" blocks") \ "blocks") \
\ \
product(bool, CMSExtrapolateSweep, false, \ product(bool, CMSExtrapolateSweep, false, \
"CMS: cushion for block demand during sweep") \ "CMS: cushion for block demand during sweep") \
...@@ -1599,11 +1615,11 @@ class CommandLineFlags { ...@@ -1599,11 +1615,11 @@ class CommandLineFlags {
\ \
product(uintx, CMS_SweepPadding, 1, \ product(uintx, CMS_SweepPadding, 1, \
"The multiple of deviation from mean to use for buffering " \ "The multiple of deviation from mean to use for buffering " \
"against volatility in inter-sweep duration.") \ "against volatility in inter-sweep duration") \
\ \
product(uintx, CMS_SweepTimerThresholdMillis, 10, \ product(uintx, CMS_SweepTimerThresholdMillis, 10, \
"Skip block flux-rate sampling for an epoch unless inter-sweep " \ "Skip block flux-rate sampling for an epoch unless inter-sweep " \
"duration exceeds this threhold in milliseconds") \ "duration exceeds this threshold in milliseconds") \
\ \
develop(bool, CMSTraceIncrementalMode, false, \ develop(bool, CMSTraceIncrementalMode, false, \
"Trace CMS incremental mode") \ "Trace CMS incremental mode") \
...@@ -1618,14 +1634,15 @@ class CommandLineFlags { ...@@ -1618,14 +1634,15 @@ class CommandLineFlags {
"Whether class unloading enabled when using CMS GC") \ "Whether class unloading enabled when using CMS GC") \
\ \
product(uintx, CMSClassUnloadingMaxInterval, 0, \ product(uintx, CMSClassUnloadingMaxInterval, 0, \
"When CMS class unloading is enabled, the maximum CMS cycle count"\ "When CMS class unloading is enabled, the maximum CMS cycle " \
" for which classes may not be unloaded") \ "count for which classes may not be unloaded") \
\ \
product(bool, CMSCompactWhenClearAllSoftRefs, true, \ product(bool, CMSCompactWhenClearAllSoftRefs, true, \
"Compact when asked to collect CMS gen with clear_all_soft_refs") \ "Compact when asked to collect CMS gen with " \
"clear_all_soft_refs()") \
\ \
product(bool, UseCMSCompactAtFullCollection, true, \ product(bool, UseCMSCompactAtFullCollection, true, \
"Use mark sweep compact at full collections") \ "Use Mark-Sweep-Compact algorithm at full collections") \
\ \
product(uintx, CMSFullGCsBeforeCompaction, 0, \ product(uintx, CMSFullGCsBeforeCompaction, 0, \
"Number of CMS full collection done before compaction if > 0") \ "Number of CMS full collection done before compaction if > 0") \
...@@ -1647,38 +1664,37 @@ class CommandLineFlags { ...@@ -1647,38 +1664,37 @@ class CommandLineFlags {
"Warn in case of excessive CMS looping") \ "Warn in case of excessive CMS looping") \
\ \
develop(bool, CMSOverflowEarlyRestoration, false, \ develop(bool, CMSOverflowEarlyRestoration, false, \
"Whether preserved marks should be restored early") \ "Restore preserved marks early") \
\ \
product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \
"Size of marking stack") \ "Size of marking stack") \
\ \
product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \
"Max size of marking stack") \ "Maximum size of marking stack") \
\ \
notproduct(bool, CMSMarkStackOverflowALot, false, \ notproduct(bool, CMSMarkStackOverflowALot, false, \
"Whether we should simulate frequent marking stack / work queue" \ "Simulate frequent marking stack / work queue overflow") \
" overflow") \
\ \
notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \
"An `interval' counter that determines how frequently" \ "An \"interval\" counter that determines how frequently " \
" we simulate overflow; a smaller number increases frequency") \ "to simulate overflow; a smaller number increases frequency") \
\ \
product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ product(uintx, CMSMaxAbortablePrecleanLoops, 0, \
"(Temporary, subject to experimentation)" \ "(Temporary, subject to experimentation) " \
"Maximum number of abortable preclean iterations, if > 0") \ "Maximum number of abortable preclean iterations, if > 0") \
\ \
product(intx, CMSMaxAbortablePrecleanTime, 5000, \ product(intx, CMSMaxAbortablePrecleanTime, 5000, \
"(Temporary, subject to experimentation)" \ "(Temporary, subject to experimentation) " \
"Maximum time in abortable preclean in ms") \ "Maximum time in abortable preclean (in milliseconds)") \
\ \
product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \
"(Temporary, subject to experimentation)" \ "(Temporary, subject to experimentation) " \
"Nominal minimum work per abortable preclean iteration") \ "Nominal minimum work per abortable preclean iteration") \
\ \
manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \
"(Temporary, subject to experimentation)" \ "(Temporary, subject to experimentation) " \
" Time that we sleep between iterations when not given" \ "Time that we sleep between iterations when not given " \
" enough work per iteration") \ "enough work per iteration") \
\ \
product(uintx, CMSRescanMultiple, 32, \ product(uintx, CMSRescanMultiple, 32, \
"Size (in cards) of CMS parallel rescan task") \ "Size (in cards) of CMS parallel rescan task") \
...@@ -1696,23 +1712,24 @@ class CommandLineFlags { ...@@ -1696,23 +1712,24 @@ class CommandLineFlags {
"Whether parallel remark enabled (only if ParNewGC)") \ "Whether parallel remark enabled (only if ParNewGC)") \
\ \
product(bool, CMSParallelSurvivorRemarkEnabled, true, \ product(bool, CMSParallelSurvivorRemarkEnabled, true, \
"Whether parallel remark of survivor space" \ "Whether parallel remark of survivor space " \
" enabled (effective only if CMSParallelRemarkEnabled)") \ "enabled (effective only if CMSParallelRemarkEnabled)") \
\ \
product(bool, CMSPLABRecordAlways, true, \ product(bool, CMSPLABRecordAlways, true, \
"Whether to always record survivor space PLAB bdries" \ "Always record survivor space PLAB boundaries (effective only " \
" (effective only if CMSParallelSurvivorRemarkEnabled)") \ "if CMSParallelSurvivorRemarkEnabled)") \
\ \
product(bool, CMSEdenChunksRecordAlways, true, \ product(bool, CMSEdenChunksRecordAlways, true, \
"Whether to always record eden chunks used for " \ "Always record eden chunks used for the parallel initial mark " \
"the parallel initial mark or remark of eden" ) \ "or remark of eden") \
\ \
product(bool, CMSPrintEdenSurvivorChunks, false, \ product(bool, CMSPrintEdenSurvivorChunks, false, \
"Print the eden and the survivor chunks used for the parallel " \ "Print the eden and the survivor chunks used for the parallel " \
"initial mark or remark of the eden/survivor spaces") \ "initial mark or remark of the eden/survivor spaces") \
\ \
product(bool, CMSConcurrentMTEnabled, true, \ product(bool, CMSConcurrentMTEnabled, true, \
"Whether multi-threaded concurrent work enabled (if ParNewGC)") \ "Whether multi-threaded concurrent work enabled " \
"(effective only if ParNewGC)") \
\ \
product(bool, CMSPrecleaningEnabled, true, \ product(bool, CMSPrecleaningEnabled, true, \
"Whether concurrent precleaning enabled") \ "Whether concurrent precleaning enabled") \
...@@ -1721,12 +1738,12 @@ class CommandLineFlags { ...@@ -1721,12 +1738,12 @@ class CommandLineFlags {
"Maximum number of precleaning iteration passes") \ "Maximum number of precleaning iteration passes") \
\ \
product(uintx, CMSPrecleanNumerator, 2, \ product(uintx, CMSPrecleanNumerator, 2, \
"CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \
" ratio") \ "ratio") \
\ \
product(uintx, CMSPrecleanDenominator, 3, \ product(uintx, CMSPrecleanDenominator, 3, \
"CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \
" ratio") \ "ratio") \
\ \
product(bool, CMSPrecleanRefLists1, true, \ product(bool, CMSPrecleanRefLists1, true, \
"Preclean ref lists during (initial) preclean phase") \ "Preclean ref lists during (initial) preclean phase") \
...@@ -1741,7 +1758,7 @@ class CommandLineFlags { ...@@ -1741,7 +1758,7 @@ class CommandLineFlags {
"Preclean survivors during abortable preclean phase") \ "Preclean survivors during abortable preclean phase") \
\ \
product(uintx, CMSPrecleanThreshold, 1000, \ product(uintx, CMSPrecleanThreshold, 1000, \
"Don't re-iterate if #dirty cards less than this") \ "Do not iterate again if number of dirty cards is less than this")\
\ \
product(bool, CMSCleanOnEnter, true, \ product(bool, CMSCleanOnEnter, true, \
"Clean-on-enter optimization for reducing number of dirty cards") \ "Clean-on-enter optimization for reducing number of dirty cards") \
...@@ -1750,14 +1767,16 @@ class CommandLineFlags { ...@@ -1750,14 +1767,16 @@ class CommandLineFlags {
"Choose variant (1,2) of verification following remark") \ "Choose variant (1,2) of verification following remark") \
\ \
product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \
"If Eden used is below this value, don't try to schedule remark") \ "If Eden size is below this, do not try to schedule remark") \
\ \
product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ product(uintx, CMSScheduleRemarkEdenPenetration, 50, \
"The Eden occupancy % at which to try and schedule remark pause") \ "The Eden occupancy percentage (0-100) at which " \
"to try and schedule remark pause") \
\ \
product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ product(uintx, CMSScheduleRemarkSamplingRatio, 5, \
"Start sampling Eden top at least before yg occupancy reaches" \ "Start sampling eden top at least before young gen " \
" 1/<ratio> of the size at which we plan to schedule remark") \ "occupancy reaches 1/<ratio> of the size at which " \
"we plan to schedule remark") \
\ \
product(uintx, CMSSamplingGrain, 16*K, \ product(uintx, CMSSamplingGrain, 16*K, \
"The minimum distance between eden samples for CMS (see above)") \ "The minimum distance between eden samples for CMS (see above)") \
...@@ -1779,27 +1798,27 @@ class CommandLineFlags { ...@@ -1779,27 +1798,27 @@ class CommandLineFlags {
"should start a collection cycle") \ "should start a collection cycle") \
\ \
product(bool, CMSYield, true, \ product(bool, CMSYield, true, \
"Yield between steps of concurrent mark & sweep") \ "Yield between steps of CMS") \
\ \
product(uintx, CMSBitMapYieldQuantum, 10*M, \ product(uintx, CMSBitMapYieldQuantum, 10*M, \
"Bitmap operations should process at most this many bits" \ "Bitmap operations should process at most this many bits " \
"between yields") \ "between yields") \
\ \
product(bool, CMSDumpAtPromotionFailure, false, \ product(bool, CMSDumpAtPromotionFailure, false, \
"Dump useful information about the state of the CMS old " \ "Dump useful information about the state of the CMS old " \
" generation upon a promotion failure.") \ "generation upon a promotion failure") \
\ \
product(bool, CMSPrintChunksInDump, false, \ product(bool, CMSPrintChunksInDump, false, \
"In a dump enabled by CMSDumpAtPromotionFailure, include " \ "In a dump enabled by CMSDumpAtPromotionFailure, include " \
" more detailed information about the free chunks.") \ "more detailed information about the free chunks") \
\ \
product(bool, CMSPrintObjectsInDump, false, \ product(bool, CMSPrintObjectsInDump, false, \
"In a dump enabled by CMSDumpAtPromotionFailure, include " \ "In a dump enabled by CMSDumpAtPromotionFailure, include " \
" more detailed information about the allocated objects.") \ "more detailed information about the allocated objects") \
\ \
diagnostic(bool, FLSVerifyAllHeapReferences, false, \ diagnostic(bool, FLSVerifyAllHeapReferences, false, \
"Verify that all refs across the FLS boundary " \ "Verify that all references across the FLS boundary " \
" are to valid objects") \ "are to valid objects") \
\ \
diagnostic(bool, FLSVerifyLists, false, \ diagnostic(bool, FLSVerifyLists, false, \
"Do lots of (expensive) FreeListSpace verification") \ "Do lots of (expensive) FreeListSpace verification") \
...@@ -1811,17 +1830,18 @@ class CommandLineFlags { ...@@ -1811,17 +1830,18 @@ class CommandLineFlags {
"Do lots of (expensive) FLS dictionary verification") \ "Do lots of (expensive) FLS dictionary verification") \
\ \
develop(bool, VerifyBlockOffsetArray, false, \ develop(bool, VerifyBlockOffsetArray, false, \
"Do (expensive!) block offset array verification") \ "Do (expensive) block offset array verification") \
\ \
diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \
"Maintain _unallocated_block in BlockOffsetArray" \ "Maintain _unallocated_block in BlockOffsetArray " \
" (currently applicable only to CMS collector)") \ "(currently applicable only to CMS collector)") \
\ \
develop(bool, TraceCMSState, false, \ develop(bool, TraceCMSState, false, \
"Trace the state of the CMS collection") \ "Trace the state of the CMS collection") \
\ \
product(intx, RefDiscoveryPolicy, 0, \ product(intx, RefDiscoveryPolicy, 0, \
"Whether reference-based(0) or referent-based(1)") \ "Select type of reference discovery policy: " \
"reference-based(0) or referent-based(1)") \
\ \
product(bool, ParallelRefProcEnabled, false, \ product(bool, ParallelRefProcEnabled, false, \
"Enable parallel reference processing whenever possible") \ "Enable parallel reference processing whenever possible") \
...@@ -1849,7 +1869,7 @@ class CommandLineFlags { ...@@ -1849,7 +1869,7 @@ class CommandLineFlags {
"denotes 'do constant GC cycles'.") \ "denotes 'do constant GC cycles'.") \
\ \
product(bool, UseCMSInitiatingOccupancyOnly, false, \ product(bool, UseCMSInitiatingOccupancyOnly, false, \
"Only use occupancy as a crierion for starting a CMS collection") \ "Only use occupancy as a criterion for starting a CMS collection")\
\ \
product(uintx, CMSIsTooFullPercentage, 98, \ product(uintx, CMSIsTooFullPercentage, 98, \
"An absolute ceiling above which CMS will always consider the " \ "An absolute ceiling above which CMS will always consider the " \
...@@ -1861,7 +1881,7 @@ class CommandLineFlags { ...@@ -1861,7 +1881,7 @@ class CommandLineFlags {
\ \
notproduct(bool, CMSVerifyReturnedBytes, false, \ notproduct(bool, CMSVerifyReturnedBytes, false, \
"Check that all the garbage collected was returned to the " \ "Check that all the garbage collected was returned to the " \
"free lists.") \ "free lists") \
\ \
notproduct(bool, ScavengeALot, false, \ notproduct(bool, ScavengeALot, false, \
"Force scavenge at every Nth exit from the runtime system " \ "Force scavenge at every Nth exit from the runtime system " \
...@@ -1876,16 +1896,16 @@ class CommandLineFlags { ...@@ -1876,16 +1896,16 @@ class CommandLineFlags {
\ \
product(bool, PrintPromotionFailure, false, \ product(bool, PrintPromotionFailure, false, \
"Print additional diagnostic information following " \ "Print additional diagnostic information following " \
" promotion failure") \ "promotion failure") \
\ \
notproduct(bool, PromotionFailureALot, false, \ notproduct(bool, PromotionFailureALot, false, \
"Use promotion failure handling on every youngest generation " \ "Use promotion failure handling on every youngest generation " \
"collection") \ "collection") \
\ \
develop(uintx, PromotionFailureALotCount, 1000, \ develop(uintx, PromotionFailureALotCount, 1000, \
"Number of promotion failures occurring at ParGCAllocBuffer" \ "Number of promotion failures occurring at ParGCAllocBuffer " \
"refill attempts (ParNew) or promotion attempts " \ "refill attempts (ParNew) or promotion attempts " \
"(other young collectors) ") \ "(other young collectors)") \
\ \
develop(uintx, PromotionFailureALotInterval, 5, \ develop(uintx, PromotionFailureALotInterval, 5, \
"Total collections between promotion failures alot") \ "Total collections between promotion failures alot") \
...@@ -1904,7 +1924,7 @@ class CommandLineFlags { ...@@ -1904,7 +1924,7 @@ class CommandLineFlags {
"Ratio of hard spins to calls to yield") \ "Ratio of hard spins to calls to yield") \
\ \
develop(uintx, ObjArrayMarkingStride, 512, \ develop(uintx, ObjArrayMarkingStride, 512, \
"Number of ObjArray elements to push onto the marking stack" \ "Number of object array elements to push onto the marking stack " \
"before pushing a continuation entry") \ "before pushing a continuation entry") \
\ \
develop(bool, MetadataAllocationFailALot, false, \ develop(bool, MetadataAllocationFailALot, false, \
...@@ -1912,7 +1932,7 @@ class CommandLineFlags { ...@@ -1912,7 +1932,7 @@ class CommandLineFlags {
"MetadataAllocationFailALotInterval") \ "MetadataAllocationFailALotInterval") \
\ \
develop(uintx, MetadataAllocationFailALotInterval, 1000, \ develop(uintx, MetadataAllocationFailALotInterval, 1000, \
"metadata allocation failure alot interval") \ "Metadata allocation failure a lot interval") \
\ \
develop(bool, MetaDataDeallocateALot, false, \ develop(bool, MetaDataDeallocateALot, false, \
"Deallocation bunches of metadata at intervals controlled by " \ "Deallocation bunches of metadata at intervals controlled by " \
...@@ -1931,7 +1951,7 @@ class CommandLineFlags { ...@@ -1931,7 +1951,7 @@ class CommandLineFlags {
"Trace virtual space metadata allocations") \ "Trace virtual space metadata allocations") \
\ \
notproduct(bool, ExecuteInternalVMTests, false, \ notproduct(bool, ExecuteInternalVMTests, false, \
"Enable execution of internal VM tests.") \ "Enable execution of internal VM tests") \
\ \
notproduct(bool, VerboseInternalVMTests, false, \ notproduct(bool, VerboseInternalVMTests, false, \
"Turn on logging for internal VM tests.") \ "Turn on logging for internal VM tests.") \
...@@ -1939,7 +1959,7 @@ class CommandLineFlags { ...@@ -1939,7 +1959,7 @@ class CommandLineFlags {
product_pd(bool, UseTLAB, "Use thread-local object allocation") \ product_pd(bool, UseTLAB, "Use thread-local object allocation") \
\ \
product_pd(bool, ResizeTLAB, \ product_pd(bool, ResizeTLAB, \
"Dynamically resize tlab size for threads") \ "Dynamically resize TLAB size for threads") \
\ \
product(bool, ZeroTLAB, false, \ product(bool, ZeroTLAB, false, \
"Zero out the newly created TLAB") \ "Zero out the newly created TLAB") \
...@@ -1951,7 +1971,8 @@ class CommandLineFlags { ...@@ -1951,7 +1971,8 @@ class CommandLineFlags {
"Print various TLAB related information") \ "Print various TLAB related information") \
\ \
product(bool, TLABStats, true, \ product(bool, TLABStats, true, \
"Print various TLAB related information") \ "Provide more detailed and expensive TLAB statistics " \
"(with PrintTLAB)") \
\ \
EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \
"Enable LowMemoryProtection")) \ "Enable LowMemoryProtection")) \
...@@ -1985,14 +2006,14 @@ class CommandLineFlags { ...@@ -1985,14 +2006,14 @@ class CommandLineFlags {
"Fraction (1/n) of real memory used for initial heap size") \ "Fraction (1/n) of real memory used for initial heap size") \
\ \
develop(uintx, MaxVirtMemFraction, 2, \ develop(uintx, MaxVirtMemFraction, 2, \
"Maximum fraction (1/n) of virtual memory used for ergonomically" \ "Maximum fraction (1/n) of virtual memory used for ergonomically "\
"determining maximum heap size") \ "determining maximum heap size") \
\ \
product(bool, UseAutoGCSelectPolicy, false, \ product(bool, UseAutoGCSelectPolicy, false, \
"Use automatic collection selection policy") \ "Use automatic collection selection policy") \
\ \
product(uintx, AutoGCSelectPauseMillis, 5000, \ product(uintx, AutoGCSelectPauseMillis, 5000, \
"Automatic GC selection pause threshhold in ms") \ "Automatic GC selection pause threshold in milliseconds") \
\ \
product(bool, UseAdaptiveSizePolicy, true, \ product(bool, UseAdaptiveSizePolicy, true, \
"Use adaptive generation sizing policies") \ "Use adaptive generation sizing policies") \
...@@ -2007,7 +2028,7 @@ class CommandLineFlags { ...@@ -2007,7 +2028,7 @@ class CommandLineFlags {
"Use adaptive young-old sizing policies at major collections") \ "Use adaptive young-old sizing policies at major collections") \
\ \
product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \
"Use statistics from System.GC for adaptive size policy") \ "Include statistics from System.gc() for adaptive size policy") \
\ \
product(bool, UseAdaptiveGCBoundary, false, \ product(bool, UseAdaptiveGCBoundary, false, \
"Allow young-old boundary to move") \ "Allow young-old boundary to move") \
...@@ -2019,16 +2040,16 @@ class CommandLineFlags { ...@@ -2019,16 +2040,16 @@ class CommandLineFlags {
"Resize the virtual spaces of the young or old generations") \ "Resize the virtual spaces of the young or old generations") \
\ \
product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ product(uintx, AdaptiveSizeThroughPutPolicy, 0, \
"Policy for changeing generation size for throughput goals") \ "Policy for changing generation size for throughput goals") \
\ \
product(uintx, AdaptiveSizePausePolicy, 0, \ product(uintx, AdaptiveSizePausePolicy, 0, \
"Policy for changing generation size for pause goals") \ "Policy for changing generation size for pause goals") \
\ \
develop(bool, PSAdjustTenuredGenForMinorPause, false, \ develop(bool, PSAdjustTenuredGenForMinorPause, false, \
"Adjust tenured generation to achive a minor pause goal") \ "Adjust tenured generation to achieve a minor pause goal") \
\ \
develop(bool, PSAdjustYoungGenForMajorPause, false, \ develop(bool, PSAdjustYoungGenForMajorPause, false, \
"Adjust young generation to achive a major pause goal") \ "Adjust young generation to achieve a major pause goal") \
\ \
product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \
"Number of steps where heuristics is used before data is used") \ "Number of steps where heuristics is used before data is used") \
...@@ -2083,14 +2104,15 @@ class CommandLineFlags { ...@@ -2083,14 +2104,15 @@ class CommandLineFlags {
"Decay factor to TenuredGenerationSizeIncrement") \ "Decay factor to TenuredGenerationSizeIncrement") \
\ \
product(uintx, MaxGCPauseMillis, max_uintx, \ product(uintx, MaxGCPauseMillis, max_uintx, \
"Adaptive size policy maximum GC pause time goal in msec, " \ "Adaptive size policy maximum GC pause time goal in millisecond, "\
"or (G1 Only) the max. GC time per MMU time slice") \ "or (G1 Only) the maximum GC time per MMU time slice") \
\ \
product(uintx, GCPauseIntervalMillis, 0, \ product(uintx, GCPauseIntervalMillis, 0, \
"Time slice for MMU specification") \ "Time slice for MMU specification") \
\ \
product(uintx, MaxGCMinorPauseMillis, max_uintx, \ product(uintx, MaxGCMinorPauseMillis, max_uintx, \
"Adaptive size policy maximum GC minor pause time goal in msec") \ "Adaptive size policy maximum GC minor pause time goal " \
"in millisecond") \
\ \
product(uintx, GCTimeRatio, 99, \ product(uintx, GCTimeRatio, 99, \
"Adaptive size policy application time to GC time ratio") \ "Adaptive size policy application time to GC time ratio") \
...@@ -2118,8 +2140,8 @@ class CommandLineFlags { ...@@ -2118,8 +2140,8 @@ class CommandLineFlags {
"before an OutOfMemory error is thrown") \ "before an OutOfMemory error is thrown") \
\ \
product(uintx, GCTimeLimit, 98, \ product(uintx, GCTimeLimit, 98, \
"Limit of proportion of time spent in GC before an OutOfMemory" \ "Limit of the proportion of time spent in GC before " \
"error is thrown (used with GCHeapFreeLimit)") \ "an OutOfMemoryError is thrown (used with GCHeapFreeLimit)") \
\ \
product(uintx, GCHeapFreeLimit, 2, \ product(uintx, GCHeapFreeLimit, 2, \
"Minimum percentage of free space after a full GC before an " \ "Minimum percentage of free space after a full GC before an " \
...@@ -2141,7 +2163,7 @@ class CommandLineFlags { ...@@ -2141,7 +2163,7 @@ class CommandLineFlags {
"How many fields ahead to prefetch in oop scan (<= 0 means off)") \ "How many fields ahead to prefetch in oop scan (<= 0 means off)") \
\ \
diagnostic(bool, VerifySilently, false, \ diagnostic(bool, VerifySilently, false, \
"Don't print print the verification progress") \ "Do not print the verification progress") \
\ \
diagnostic(bool, VerifyDuringStartup, false, \ diagnostic(bool, VerifyDuringStartup, false, \
"Verify memory system before executing any Java code " \ "Verify memory system before executing any Java code " \
...@@ -2164,7 +2186,7 @@ class CommandLineFlags { ...@@ -2164,7 +2186,7 @@ class CommandLineFlags {
\ \
diagnostic(bool, DeferInitialCardMark, false, \ diagnostic(bool, DeferInitialCardMark, false, \
"When +ReduceInitialCardMarks, explicitly defer any that " \ "When +ReduceInitialCardMarks, explicitly defer any that " \
"may arise from new_pre_store_barrier") \ "may arise from new_pre_store_barrier") \
\ \
diagnostic(bool, VerifyRememberedSets, false, \ diagnostic(bool, VerifyRememberedSets, false, \
"Verify GC remembered sets") \ "Verify GC remembered sets") \
...@@ -2173,10 +2195,10 @@ class CommandLineFlags { ...@@ -2173,10 +2195,10 @@ class CommandLineFlags {
"Verify GC object start array if verify before/after") \ "Verify GC object start array if verify before/after") \
\ \
product(bool, DisableExplicitGC, false, \ product(bool, DisableExplicitGC, false, \
"Tells whether calling System.gc() does a full GC") \ "Ignore calls to System.gc()") \
\ \
notproduct(bool, CheckMemoryInitialization, false, \ notproduct(bool, CheckMemoryInitialization, false, \
"Checks memory initialization") \ "Check memory initialization") \
\ \
product(bool, CollectGen0First, false, \ product(bool, CollectGen0First, false, \
"Collect youngest generation before each full GC") \ "Collect youngest generation before each full GC") \
...@@ -2197,44 +2219,45 @@ class CommandLineFlags { ...@@ -2197,44 +2219,45 @@ class CommandLineFlags {
"Stride through processors when distributing processes") \ "Stride through processors when distributing processes") \
\ \
product(uintx, CMSCoordinatorYieldSleepCount, 10, \ product(uintx, CMSCoordinatorYieldSleepCount, 10, \
"number of times the coordinator GC thread will sleep while " \ "Number of times the coordinator GC thread will sleep while " \
"yielding before giving up and resuming GC") \ "yielding before giving up and resuming GC") \
\ \
product(uintx, CMSYieldSleepCount, 0, \ product(uintx, CMSYieldSleepCount, 0, \
"number of times a GC thread (minus the coordinator) " \ "Number of times a GC thread (minus the coordinator) " \
"will sleep while yielding before giving up and resuming GC") \ "will sleep while yielding before giving up and resuming GC") \
\ \
/* gc tracing */ \ /* gc tracing */ \
manageable(bool, PrintGC, false, \ manageable(bool, PrintGC, false, \
"Print message at garbage collect") \ "Print message at garbage collection") \
\ \
manageable(bool, PrintGCDetails, false, \ manageable(bool, PrintGCDetails, false, \
"Print more details at garbage collect") \ "Print more details at garbage collection") \
\ \
manageable(bool, PrintGCDateStamps, false, \ manageable(bool, PrintGCDateStamps, false, \
"Print date stamps at garbage collect") \ "Print date stamps at garbage collection") \
\ \
manageable(bool, PrintGCTimeStamps, false, \ manageable(bool, PrintGCTimeStamps, false, \
"Print timestamps at garbage collect") \ "Print timestamps at garbage collection") \
\ \
product(bool, PrintGCTaskTimeStamps, false, \ product(bool, PrintGCTaskTimeStamps, false, \
"Print timestamps for individual gc worker thread tasks") \ "Print timestamps for individual gc worker thread tasks") \
\ \
develop(intx, ConcGCYieldTimeout, 0, \ develop(intx, ConcGCYieldTimeout, 0, \
"If non-zero, assert that GC threads yield within this # of ms.") \ "If non-zero, assert that GC threads yield within this " \
"number of milliseconds") \
\ \
notproduct(bool, TraceMarkSweep, false, \ notproduct(bool, TraceMarkSweep, false, \
"Trace mark sweep") \ "Trace mark sweep") \
\ \
product(bool, PrintReferenceGC, false, \ product(bool, PrintReferenceGC, false, \
"Print times spent handling reference objects during GC " \ "Print times spent handling reference objects during GC " \
" (enabled only when PrintGCDetails)") \ "(enabled only when PrintGCDetails)") \
\ \
develop(bool, TraceReferenceGC, false, \ develop(bool, TraceReferenceGC, false, \
"Trace handling of soft/weak/final/phantom references") \ "Trace handling of soft/weak/final/phantom references") \
\ \
develop(bool, TraceFinalizerRegistration, false, \ develop(bool, TraceFinalizerRegistration, false, \
"Trace registration of final references") \ "Trace registration of final references") \
\ \
notproduct(bool, TraceScavenge, false, \ notproduct(bool, TraceScavenge, false, \
"Trace scavenge") \ "Trace scavenge") \
...@@ -2271,7 +2294,7 @@ class CommandLineFlags { ...@@ -2271,7 +2294,7 @@ class CommandLineFlags {
"Print heap layout before and after each GC") \ "Print heap layout before and after each GC") \
\ \
product_rw(bool, PrintHeapAtGCExtended, false, \ product_rw(bool, PrintHeapAtGCExtended, false, \
"Prints extended information about the layout of the heap " \ "Print extended information about the layout of the heap " \
"when -XX:+PrintHeapAtGC is set") \ "when -XX:+PrintHeapAtGC is set") \
\ \
product(bool, PrintHeapAtSIGBREAK, true, \ product(bool, PrintHeapAtSIGBREAK, true, \
...@@ -2308,45 +2331,45 @@ class CommandLineFlags { ...@@ -2308,45 +2331,45 @@ class CommandLineFlags {
"Trace actions of the GC task threads") \ "Trace actions of the GC task threads") \
\ \
product(bool, PrintParallelOldGCPhaseTimes, false, \ product(bool, PrintParallelOldGCPhaseTimes, false, \
"Print the time taken by each parallel old gc phase." \ "Print the time taken by each phase in ParallelOldGC " \
"PrintGCDetails must also be enabled.") \ "(PrintGCDetails must also be enabled)") \
\ \
develop(bool, TraceParallelOldGCMarkingPhase, false, \ develop(bool, TraceParallelOldGCMarkingPhase, false, \
"Trace parallel old gc marking phase") \ "Trace marking phase in ParallelOldGC") \
\ \
develop(bool, TraceParallelOldGCSummaryPhase, false, \ develop(bool, TraceParallelOldGCSummaryPhase, false, \
"Trace parallel old gc summary phase") \ "Trace summary phase in ParallelOldGC") \
\ \
develop(bool, TraceParallelOldGCCompactionPhase, false, \ develop(bool, TraceParallelOldGCCompactionPhase, false, \
"Trace parallel old gc compaction phase") \ "Trace compaction phase in ParallelOldGC") \
\ \
develop(bool, TraceParallelOldGCDensePrefix, false, \ develop(bool, TraceParallelOldGCDensePrefix, false, \
"Trace parallel old gc dense prefix computation") \ "Trace dense prefix computation for ParallelOldGC") \
\ \
develop(bool, IgnoreLibthreadGPFault, false, \ develop(bool, IgnoreLibthreadGPFault, false, \
"Suppress workaround for libthread GP fault") \ "Suppress workaround for libthread GP fault") \
\ \
product(bool, PrintJNIGCStalls, false, \ product(bool, PrintJNIGCStalls, false, \
"Print diagnostic message when GC is stalled" \ "Print diagnostic message when GC is stalled " \
"by JNI critical section") \ "by JNI critical section") \
\ \
experimental(double, ObjectCountCutOffPercent, 0.5, \ experimental(double, ObjectCountCutOffPercent, 0.5, \
"The percentage of the used heap that the instances of a class " \ "The percentage of the used heap that the instances of a class " \
"must occupy for the class to generate a trace event.") \ "must occupy for the class to generate a trace event") \
\ \
/* GC log rotation setting */ \ /* GC log rotation setting */ \
\ \
product(bool, UseGCLogFileRotation, false, \ product(bool, UseGCLogFileRotation, false, \
"Prevent large gclog file for long running app. " \ "Rotate gclog files (for long running applications). It requires "\
"Requires -Xloggc:<filename>") \ "-Xloggc:<filename>") \
\ \
product(uintx, NumberOfGCLogFiles, 0, \ product(uintx, NumberOfGCLogFiles, 0, \
"Number of gclog files in rotation, " \ "Number of gclog files in rotation " \
"Default: 0, no rotation") \ "(default: 0, no rotation)") \
\ \
product(uintx, GCLogFileSize, 0, \ product(uintx, GCLogFileSize, 0, \
"GC log file size, Default: 0 bytes, no rotation " \ "GC log file size (default: 0 bytes, no rotation). " \
"Only valid with UseGCLogFileRotation") \ "It requires UseGCLogFileRotation") \
\ \
/* JVMTI heap profiling */ \ /* JVMTI heap profiling */ \
\ \
...@@ -2423,40 +2446,40 @@ class CommandLineFlags { ...@@ -2423,40 +2446,40 @@ class CommandLineFlags {
"Generate range checks for array accesses") \ "Generate range checks for array accesses") \
\ \
develop_pd(bool, ImplicitNullChecks, \ develop_pd(bool, ImplicitNullChecks, \
"generate code for implicit null checks") \ "Generate code for implicit null checks") \
\ \
product(bool, PrintSafepointStatistics, false, \ product(bool, PrintSafepointStatistics, false, \
"print statistics about safepoint synchronization") \ "Print statistics about safepoint synchronization") \
\ \
product(intx, PrintSafepointStatisticsCount, 300, \ product(intx, PrintSafepointStatisticsCount, 300, \
"total number of safepoint statistics collected " \ "Total number of safepoint statistics collected " \
"before printing them out") \ "before printing them out") \
\ \
product(intx, PrintSafepointStatisticsTimeout, -1, \ product(intx, PrintSafepointStatisticsTimeout, -1, \
"print safepoint statistics only when safepoint takes" \ "Print safepoint statistics only when safepoint takes " \
" more than PrintSafepointSatisticsTimeout in millis") \ "more than PrintSafepointSatisticsTimeout in millis") \
\ \
product(bool, TraceSafepointCleanupTime, false, \ product(bool, TraceSafepointCleanupTime, false, \
"print the break down of clean up tasks performed during" \ "Print the break down of clean up tasks performed during " \
" safepoint") \ "safepoint") \
\ \
product(bool, Inline, true, \ product(bool, Inline, true, \
"enable inlining") \ "Enable inlining") \
\ \
product(bool, ClipInlining, true, \ product(bool, ClipInlining, true, \
"clip inlining if aggregate method exceeds DesiredMethodLimit") \ "Clip inlining if aggregate method exceeds DesiredMethodLimit") \
\ \
develop(bool, UseCHA, true, \ develop(bool, UseCHA, true, \
"enable CHA") \ "Enable CHA") \
\ \
product(bool, UseTypeProfile, true, \ product(bool, UseTypeProfile, true, \
"Check interpreter profile for historically monomorphic calls") \ "Check interpreter profile for historically monomorphic calls") \
\ \
notproduct(bool, TimeCompiler, false, \ notproduct(bool, TimeCompiler, false, \
"time the compiler") \ "Time the compiler") \
\ \
diagnostic(bool, PrintInlining, false, \ diagnostic(bool, PrintInlining, false, \
"prints inlining optimizations") \ "Print inlining optimizations") \
\ \
product(bool, UsePopCountInstruction, false, \ product(bool, UsePopCountInstruction, false, \
"Use population count instruction") \ "Use population count instruction") \
...@@ -2468,57 +2491,59 @@ class CommandLineFlags { ...@@ -2468,57 +2491,59 @@ class CommandLineFlags {
"Print when methods are replaced do to recompilation") \ "Print when methods are replaced do to recompilation") \
\ \
develop(bool, PrintMethodFlushing, false, \ develop(bool, PrintMethodFlushing, false, \
"print the nmethods being flushed") \ "Print the nmethods being flushed") \
\ \
develop(bool, UseRelocIndex, false, \ develop(bool, UseRelocIndex, false, \
"use an index to speed random access to relocations") \ "Use an index to speed random access to relocations") \
\ \
develop(bool, StressCodeBuffers, false, \ develop(bool, StressCodeBuffers, false, \
"Exercise code buffer expansion and other rare state changes") \ "Exercise code buffer expansion and other rare state changes") \
\ \
diagnostic(bool, DebugNonSafepoints, trueInDebug, \ diagnostic(bool, DebugNonSafepoints, trueInDebug, \
"Generate extra debugging info for non-safepoints in nmethods") \ "Generate extra debugging information for non-safepoints in " \
"nmethods") \
\ \
product(bool, PrintVMOptions, false, \ product(bool, PrintVMOptions, false, \
"Print flags that appeared on the command line") \ "Print flags that appeared on the command line") \
\ \
product(bool, IgnoreUnrecognizedVMOptions, false, \ product(bool, IgnoreUnrecognizedVMOptions, false, \
"Ignore unrecognized VM options") \ "Ignore unrecognized VM options") \
\ \
product(bool, PrintCommandLineFlags, false, \ product(bool, PrintCommandLineFlags, false, \
"Print flags specified on command line or set by ergonomics") \ "Print flags specified on command line or set by ergonomics") \
\ \
product(bool, PrintFlagsInitial, false, \ product(bool, PrintFlagsInitial, false, \
"Print all VM flags before argument processing and exit VM") \ "Print all VM flags before argument processing and exit VM") \
\ \
product(bool, PrintFlagsFinal, false, \ product(bool, PrintFlagsFinal, false, \
"Print all VM flags after argument and ergonomic processing") \ "Print all VM flags after argument and ergonomic processing") \
\ \
notproduct(bool, PrintFlagsWithComments, false, \ notproduct(bool, PrintFlagsWithComments, false, \
"Print all VM flags with default values and descriptions and exit")\ "Print all VM flags with default values and descriptions and " \
"exit") \
\ \
diagnostic(bool, SerializeVMOutput, true, \ diagnostic(bool, SerializeVMOutput, true, \
"Use a mutex to serialize output to tty and LogFile") \ "Use a mutex to serialize output to tty and LogFile") \
\ \
diagnostic(bool, DisplayVMOutput, true, \ diagnostic(bool, DisplayVMOutput, true, \
"Display all VM output on the tty, independently of LogVMOutput") \ "Display all VM output on the tty, independently of LogVMOutput") \
\ \
diagnostic(bool, LogVMOutput, false, \ diagnostic(bool, LogVMOutput, false, \
"Save VM output to LogFile") \ "Save VM output to LogFile") \
\ \
diagnostic(ccstr, LogFile, NULL, \ diagnostic(ccstr, LogFile, NULL, \
"If LogVMOutput or LogCompilation is on, save VM output to " \ "If LogVMOutput or LogCompilation is on, save VM output to " \
"this file [default: ./hotspot_pid%p.log] (%p replaced with pid)") \ "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)")\
\ \
product(ccstr, ErrorFile, NULL, \ product(ccstr, ErrorFile, NULL, \
"If an error occurs, save the error data to this file " \ "If an error occurs, save the error data to this file " \
"[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \
\ \
product(bool, DisplayVMOutputToStderr, false, \ product(bool, DisplayVMOutputToStderr, false, \
"If DisplayVMOutput is true, display all VM output to stderr") \ "If DisplayVMOutput is true, display all VM output to stderr") \
\ \
product(bool, DisplayVMOutputToStdout, false, \ product(bool, DisplayVMOutputToStdout, false, \
"If DisplayVMOutput is true, display all VM output to stdout") \ "If DisplayVMOutput is true, display all VM output to stdout") \
\ \
product(bool, UseHeavyMonitors, false, \ product(bool, UseHeavyMonitors, false, \
"use heavyweight instead of lightweight Java monitors") \ "use heavyweight instead of lightweight Java monitors") \
...@@ -2542,7 +2567,7 @@ class CommandLineFlags { ...@@ -2542,7 +2567,7 @@ class CommandLineFlags {
\ \
notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \
"Call fatal if the exception pointed by AbortVMOnException " \ "Call fatal if the exception pointed by AbortVMOnException " \
"has this message.") \ "has this message") \
\ \
develop(bool, DebugVtables, false, \ develop(bool, DebugVtables, false, \
"add debugging code to vtable dispatch") \ "add debugging code to vtable dispatch") \
...@@ -2609,29 +2634,29 @@ class CommandLineFlags { ...@@ -2609,29 +2634,29 @@ class CommandLineFlags {
\ \
/* statistics */ \ /* statistics */ \
develop(bool, CountCompiledCalls, false, \ develop(bool, CountCompiledCalls, false, \
"counts method invocations") \ "Count method invocations") \
\ \
notproduct(bool, CountRuntimeCalls, false, \ notproduct(bool, CountRuntimeCalls, false, \
"counts VM runtime calls") \ "Count VM runtime calls") \
\ \
develop(bool, CountJNICalls, false, \ develop(bool, CountJNICalls, false, \
"counts jni method invocations") \ "Count jni method invocations") \
\ \
notproduct(bool, CountJVMCalls, false, \ notproduct(bool, CountJVMCalls, false, \
"counts jvm method invocations") \ "Count jvm method invocations") \
\ \
notproduct(bool, CountRemovableExceptions, false, \ notproduct(bool, CountRemovableExceptions, false, \
"count exceptions that could be replaced by branches due to " \ "Count exceptions that could be replaced by branches due to " \
"inlining") \ "inlining") \
\ \
notproduct(bool, ICMissHistogram, false, \ notproduct(bool, ICMissHistogram, false, \
"produce histogram of IC misses") \ "Produce histogram of IC misses") \
\ \
notproduct(bool, PrintClassStatistics, false, \ notproduct(bool, PrintClassStatistics, false, \
"prints class statistics at end of run") \ "Print class statistics at end of run") \
\ \
notproduct(bool, PrintMethodStatistics, false, \ notproduct(bool, PrintMethodStatistics, false, \
"prints method statistics at end of run") \ "Print method statistics at end of run") \
\ \
/* interpreter */ \ /* interpreter */ \
develop(bool, ClearInterpreterLocals, false, \ develop(bool, ClearInterpreterLocals, false, \
...@@ -2645,7 +2670,7 @@ class CommandLineFlags { ...@@ -2645,7 +2670,7 @@ class CommandLineFlags {
"Rewrite frequently used bytecode pairs into a single bytecode") \ "Rewrite frequently used bytecode pairs into a single bytecode") \
\ \
diagnostic(bool, PrintInterpreter, false, \ diagnostic(bool, PrintInterpreter, false, \
"Prints the generated interpreter code") \ "Print the generated interpreter code") \
\ \
product(bool, UseInterpreter, true, \ product(bool, UseInterpreter, true, \
"Use interpreter for non-compiled methods") \ "Use interpreter for non-compiled methods") \
...@@ -2663,8 +2688,8 @@ class CommandLineFlags { ...@@ -2663,8 +2688,8 @@ class CommandLineFlags {
"Use fast method entry code for accessor methods") \ "Use fast method entry code for accessor methods") \
\ \
product_pd(bool, UseOnStackReplacement, \ product_pd(bool, UseOnStackReplacement, \
"Use on stack replacement, calls runtime if invoc. counter " \ "Use on stack replacement, calls runtime if invoc. counter " \
"overflows in loop") \ "overflows in loop") \
\ \
notproduct(bool, TraceOnStackReplacement, false, \ notproduct(bool, TraceOnStackReplacement, false, \
"Trace on stack replacement") \ "Trace on stack replacement") \
...@@ -2712,10 +2737,10 @@ class CommandLineFlags { ...@@ -2712,10 +2737,10 @@ class CommandLineFlags {
"Trace frequency based inlining") \ "Trace frequency based inlining") \
\ \
develop_pd(bool, InlineIntrinsics, \ develop_pd(bool, InlineIntrinsics, \
"Inline intrinsics that can be statically resolved") \ "Inline intrinsics that can be statically resolved") \
\ \
product_pd(bool, ProfileInterpreter, \ product_pd(bool, ProfileInterpreter, \
"Profile at the bytecode level during interpretation") \ "Profile at the bytecode level during interpretation") \
\ \
develop_pd(bool, ProfileTraps, \ develop_pd(bool, ProfileTraps, \
"Profile deoptimization traps at the bytecode level") \ "Profile deoptimization traps at the bytecode level") \
...@@ -2725,7 +2750,7 @@ class CommandLineFlags { ...@@ -2725,7 +2750,7 @@ class CommandLineFlags {
"CompileThreshold) before using the method's profile") \ "CompileThreshold) before using the method's profile") \
\ \
develop(bool, PrintMethodData, false, \ develop(bool, PrintMethodData, false, \
"Print the results of +ProfileInterpreter at end of run") \ "Print the results of +ProfileInterpreter at end of run") \
\ \
develop(bool, VerifyDataPointer, trueInDebug, \ develop(bool, VerifyDataPointer, trueInDebug, \
"Verify the method data pointer during interpreter profiling") \ "Verify the method data pointer during interpreter profiling") \
...@@ -2740,7 +2765,7 @@ class CommandLineFlags { ...@@ -2740,7 +2765,7 @@ class CommandLineFlags {
\ \
/* compilation */ \ /* compilation */ \
product(bool, UseCompiler, true, \ product(bool, UseCompiler, true, \
"use compilation") \ "Use Just-In-Time compilation") \
\ \
develop(bool, TraceCompilationPolicy, false, \ develop(bool, TraceCompilationPolicy, false, \
"Trace compilation policy") \ "Trace compilation policy") \
...@@ -2749,20 +2774,21 @@ class CommandLineFlags { ...@@ -2749,20 +2774,21 @@ class CommandLineFlags {
"Time the compilation policy") \ "Time the compilation policy") \
\ \
product(bool, UseCounterDecay, true, \ product(bool, UseCounterDecay, true, \
"adjust recompilation counters") \ "Adjust recompilation counters") \
\ \
develop(intx, CounterHalfLifeTime, 30, \ develop(intx, CounterHalfLifeTime, 30, \
"half-life time of invocation counters (in secs)") \ "Half-life time of invocation counters (in seconds)") \
\ \
develop(intx, CounterDecayMinIntervalLength, 500, \ develop(intx, CounterDecayMinIntervalLength, 500, \
"Min. ms. between invocation of CounterDecay") \ "The minimum interval (in milliseconds) between invocation of " \
"CounterDecay") \
\ \
product(bool, AlwaysCompileLoopMethods, false, \ product(bool, AlwaysCompileLoopMethods, false, \
"when using recompilation, never interpret methods " \ "When using recompilation, never interpret methods " \
"containing loops") \ "containing loops") \
\ \
product(bool, DontCompileHugeMethods, true, \ product(bool, DontCompileHugeMethods, true, \
"don't compile methods > HugeMethodLimit") \ "Do not compile methods > HugeMethodLimit") \
\ \
/* Bytecode escape analysis estimation. */ \ /* Bytecode escape analysis estimation. */ \
product(bool, EstimateArgEscape, true, \ product(bool, EstimateArgEscape, true, \
...@@ -2772,10 +2798,10 @@ class CommandLineFlags { ...@@ -2772,10 +2798,10 @@ class CommandLineFlags {
"How much tracing to do of bytecode escape analysis estimates") \ "How much tracing to do of bytecode escape analysis estimates") \
\ \
product(intx, MaxBCEAEstimateLevel, 5, \ product(intx, MaxBCEAEstimateLevel, 5, \
"Maximum number of nested calls that are analyzed by BC EA.") \ "Maximum number of nested calls that are analyzed by BC EA") \
\ \
product(intx, MaxBCEAEstimateSize, 150, \ product(intx, MaxBCEAEstimateSize, 150, \
"Maximum bytecode size of a method to be analyzed by BC EA.") \ "Maximum bytecode size of a method to be analyzed by BC EA") \
\ \
product(intx, AllocatePrefetchStyle, 1, \ product(intx, AllocatePrefetchStyle, 1, \
"0 = no prefetch, " \ "0 = no prefetch, " \
...@@ -2790,7 +2816,8 @@ class CommandLineFlags { ...@@ -2790,7 +2816,8 @@ class CommandLineFlags {
"Number of lines to prefetch ahead of array allocation pointer") \ "Number of lines to prefetch ahead of array allocation pointer") \
\ \
product(intx, AllocateInstancePrefetchLines, 1, \ product(intx, AllocateInstancePrefetchLines, 1, \
"Number of lines to prefetch ahead of instance allocation pointer") \ "Number of lines to prefetch ahead of instance allocation " \
"pointer") \
\ \
product(intx, AllocatePrefetchStepSize, 16, \ product(intx, AllocatePrefetchStepSize, 16, \
"Step size in bytes of sequential prefetch instructions") \ "Step size in bytes of sequential prefetch instructions") \
...@@ -2810,8 +2837,8 @@ class CommandLineFlags { ...@@ -2810,8 +2837,8 @@ class CommandLineFlags {
"(0 means off)") \ "(0 means off)") \
\ \
product(intx, MaxJavaStackTraceDepth, 1024, \ product(intx, MaxJavaStackTraceDepth, 1024, \
"Max. no. of lines in the stack trace for Java exceptions " \ "The maximum number of lines in the stack trace for Java " \
"(0 means all)") \ "exceptions (0 means all)") \
\ \
NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \
"Guarantee a safepoint (at least) every so many milliseconds " \ "Guarantee a safepoint (at least) every so many milliseconds " \
...@@ -2831,10 +2858,10 @@ class CommandLineFlags { ...@@ -2831,10 +2858,10 @@ class CommandLineFlags {
"Compilers wake up every n seconds to possibly sweep nmethods") \ "Compilers wake up every n seconds to possibly sweep nmethods") \
\ \
notproduct(bool, LogSweeper, false, \ notproduct(bool, LogSweeper, false, \
"Keep a ring buffer of sweeper activity") \ "Keep a ring buffer of sweeper activity") \
\ \
notproduct(intx, SweeperLogEntries, 1024, \ notproduct(intx, SweeperLogEntries, 1024, \
"Number of records in the ring buffer of sweeper activity") \ "Number of records in the ring buffer of sweeper activity") \
\ \
notproduct(intx, MemProfilingInterval, 500, \ notproduct(intx, MemProfilingInterval, 500, \
"Time between each invocation of the MemProfiler") \ "Time between each invocation of the MemProfiler") \
...@@ -2877,34 +2904,35 @@ class CommandLineFlags { ...@@ -2877,34 +2904,35 @@ class CommandLineFlags {
"less than this") \ "less than this") \
\ \
product(intx, MaxInlineSize, 35, \ product(intx, MaxInlineSize, 35, \
"maximum bytecode size of a method to be inlined") \ "The maximum bytecode size of a method to be inlined") \
\ \
product_pd(intx, FreqInlineSize, \ product_pd(intx, FreqInlineSize, \
"maximum bytecode size of a frequent method to be inlined") \ "The maximum bytecode size of a frequent method to be inlined") \
\ \
product(intx, MaxTrivialSize, 6, \ product(intx, MaxTrivialSize, 6, \
"maximum bytecode size of a trivial method to be inlined") \ "The maximum bytecode size of a trivial method to be inlined") \
\ \
product(intx, MinInliningThreshold, 250, \ product(intx, MinInliningThreshold, 250, \
"min. invocation count a method needs to have to be inlined") \ "The minimum invocation count a method needs to have to be " \
"inlined") \
\ \
develop(intx, MethodHistogramCutoff, 100, \ develop(intx, MethodHistogramCutoff, 100, \
"cutoff value for method invoc. histogram (+CountCalls)") \ "The cutoff value for method invocation histogram (+CountCalls)") \
\ \
develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ develop(intx, ProfilerNumberOfInterpretedMethods, 25, \
"# of interpreted methods to show in profile") \ "Number of interpreted methods to show in profile") \
\ \
develop(intx, ProfilerNumberOfCompiledMethods, 25, \ develop(intx, ProfilerNumberOfCompiledMethods, 25, \
"# of compiled methods to show in profile") \ "Number of compiled methods to show in profile") \
\ \
develop(intx, ProfilerNumberOfStubMethods, 25, \ develop(intx, ProfilerNumberOfStubMethods, 25, \
"# of stub methods to show in profile") \ "Number of stub methods to show in profile") \
\ \
develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \
"# of runtime stub nodes to show in profile") \ "Number of runtime stub nodes to show in profile") \
\ \
product(intx, ProfileIntervalsTicks, 100, \ product(intx, ProfileIntervalsTicks, 100, \
"# of ticks between printing of interval profile " \ "Number of ticks between printing of interval profile " \
"(+ProfileIntervals)") \ "(+ProfileIntervals)") \
\ \
notproduct(intx, ScavengeALotInterval, 1, \ notproduct(intx, ScavengeALotInterval, 1, \
...@@ -2925,7 +2953,7 @@ class CommandLineFlags { ...@@ -2925,7 +2953,7 @@ class CommandLineFlags {
\ \
develop(intx, MinSleepInterval, 1, \ develop(intx, MinSleepInterval, 1, \
"Minimum sleep() interval (milliseconds) when " \ "Minimum sleep() interval (milliseconds) when " \
"ConvertSleepToYield is off (used for SOLARIS)") \ "ConvertSleepToYield is off (used for Solaris)") \
\ \
develop(intx, ProfilerPCTickThreshold, 15, \ develop(intx, ProfilerPCTickThreshold, 15, \
"Number of ticks in a PC buckets to be a hotspot") \ "Number of ticks in a PC buckets to be a hotspot") \
...@@ -2940,22 +2968,22 @@ class CommandLineFlags { ...@@ -2940,22 +2968,22 @@ class CommandLineFlags {
"Mark nmethods non-entrant at registration") \ "Mark nmethods non-entrant at registration") \
\ \
diagnostic(intx, MallocVerifyInterval, 0, \ diagnostic(intx, MallocVerifyInterval, 0, \
"if non-zero, verify C heap after every N calls to " \ "If non-zero, verify C heap after every N calls to " \
"malloc/realloc/free") \ "malloc/realloc/free") \
\ \
diagnostic(intx, MallocVerifyStart, 0, \ diagnostic(intx, MallocVerifyStart, 0, \
"if non-zero, start verifying C heap after Nth call to " \ "If non-zero, start verifying C heap after Nth call to " \
"malloc/realloc/free") \ "malloc/realloc/free") \
\ \
diagnostic(uintx, MallocMaxTestWords, 0, \ diagnostic(uintx, MallocMaxTestWords, 0, \
"if non-zero, max # of Words that malloc/realloc can allocate " \ "If non-zero, maximum number of words that malloc/realloc can " \
"(for testing only)") \ "allocate (for testing only)") \
\ \
product(intx, TypeProfileWidth, 2, \ product(intx, TypeProfileWidth, 2, \
"number of receiver types to record in call/cast profile") \ "Number of receiver types to record in call/cast profile") \
\ \
develop(intx, BciProfileWidth, 2, \ develop(intx, BciProfileWidth, 2, \
"number of return bci's to record in ret profile") \ "Number of return bci's to record in ret profile") \
\ \
product(intx, PerMethodRecompilationCutoff, 400, \ product(intx, PerMethodRecompilationCutoff, 400, \
"After recompiling N times, stay in the interpreter (-1=>'Inf')") \ "After recompiling N times, stay in the interpreter (-1=>'Inf')") \
...@@ -3022,7 +3050,7 @@ class CommandLineFlags { ...@@ -3022,7 +3050,7 @@ class CommandLineFlags {
"Percentage of Eden that can be wasted") \ "Percentage of Eden that can be wasted") \
\ \
product(uintx, TLABRefillWasteFraction, 64, \ product(uintx, TLABRefillWasteFraction, 64, \
"Max TLAB waste at a refill (internal fragmentation)") \ "Maximum TLAB waste at a refill (internal fragmentation)") \
\ \
product(uintx, TLABWasteIncrement, 4, \ product(uintx, TLABWasteIncrement, 4, \
"Increment allowed waste at slow allocation") \ "Increment allowed waste at slow allocation") \
...@@ -3031,7 +3059,7 @@ class CommandLineFlags { ...@@ -3031,7 +3059,7 @@ class CommandLineFlags {
"Ratio of eden/survivor space size") \ "Ratio of eden/survivor space size") \
\ \
product(uintx, NewRatio, 2, \ product(uintx, NewRatio, 2, \
"Ratio of new/old generation sizes") \ "Ratio of old/new generation sizes") \
\ \
product_pd(uintx, NewSizeThreadIncrease, \ product_pd(uintx, NewSizeThreadIncrease, \
"Additional size added to desired new generation size per " \ "Additional size added to desired new generation size per " \
...@@ -3048,28 +3076,30 @@ class CommandLineFlags { ...@@ -3048,28 +3076,30 @@ class CommandLineFlags {
"class pointers are used") \ "class pointers are used") \
\ \
product(uintx, MinHeapFreeRatio, 40, \ product(uintx, MinHeapFreeRatio, 40, \
"Min percentage of heap free after GC to avoid expansion") \ "The minimum percentage of heap free after GC to avoid expansion")\
\ \
product(uintx, MaxHeapFreeRatio, 70, \ product(uintx, MaxHeapFreeRatio, 70, \
"Max percentage of heap free after GC to avoid shrinking") \ "The maximum percentage of heap free after GC to avoid shrinking")\
\ \
product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ product(intx, SoftRefLRUPolicyMSPerMB, 1000, \
"Number of milliseconds per MB of free space in the heap") \ "Number of milliseconds per MB of free space in the heap") \
\ \
product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \
"Min change in heap space due to GC (in bytes)") \ "The minimum change in heap space due to GC (in bytes)") \
\ \
product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \
"Min expansion of Metaspace (in bytes)") \ "The minimum expansion of Metaspace (in bytes)") \
\ \
product(uintx, MinMetaspaceFreeRatio, 40, \ product(uintx, MinMetaspaceFreeRatio, 40, \
"Min percentage of Metaspace free after GC to avoid expansion") \ "The minimum percentage of Metaspace free after GC to avoid " \
"expansion") \
\ \
product(uintx, MaxMetaspaceFreeRatio, 70, \ product(uintx, MaxMetaspaceFreeRatio, 70, \
"Max percentage of Metaspace free after GC to avoid shrinking") \ "The maximum percentage of Metaspace free after GC to avoid " \
"shrinking") \
\ \
product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \
"Max expansion of Metaspace without full GC (in bytes)") \ "The maximum expansion of Metaspace without full GC (in bytes)") \
\ \
product(uintx, QueuedAllocationWarningCount, 0, \ product(uintx, QueuedAllocationWarningCount, 0, \
"Number of times an allocation that queues behind a GC " \ "Number of times an allocation that queues behind a GC " \
...@@ -3091,13 +3121,14 @@ class CommandLineFlags { ...@@ -3091,13 +3121,14 @@ class CommandLineFlags {
"Desired percentage of survivor space used after scavenge") \ "Desired percentage of survivor space used after scavenge") \
\ \
product(uintx, MarkSweepDeadRatio, 5, \ product(uintx, MarkSweepDeadRatio, 5, \
"Percentage (0-100) of the old gen allowed as dead wood." \ "Percentage (0-100) of the old gen allowed as dead wood. " \
"Serial mark sweep treats this as both the min and max value." \ "Serial mark sweep treats this as both the minimum and maximum " \
"CMS uses this value only if it falls back to mark sweep." \ "value. " \
"Par compact uses a variable scale based on the density of the" \ "CMS uses this value only if it falls back to mark sweep. " \
"generation and treats this as the max value when the heap is" \ "Par compact uses a variable scale based on the density of the " \
"either completely full or completely empty. Par compact also" \ "generation and treats this as the maximum value when the heap " \
"has a smaller default value; see arguments.cpp.") \ "is either completely full or completely empty. Par compact " \
"also has a smaller default value; see arguments.cpp.") \
\ \
product(uintx, MarkSweepAlwaysCompactCount, 4, \ product(uintx, MarkSweepAlwaysCompactCount, 4, \
"How often should we fully compact the heap (ignoring the dead " \ "How often should we fully compact the heap (ignoring the dead " \
...@@ -3116,27 +3147,27 @@ class CommandLineFlags { ...@@ -3116,27 +3147,27 @@ class CommandLineFlags {
"Census for CMS' FreeListSpace") \ "Census for CMS' FreeListSpace") \
\ \
develop(uintx, GCExpandToAllocateDelayMillis, 0, \ develop(uintx, GCExpandToAllocateDelayMillis, 0, \
"Delay in ms between expansion and allocation") \ "Delay between expansion and allocation (in milliseconds)") \
\ \
develop(uintx, GCWorkerDelayMillis, 0, \ develop(uintx, GCWorkerDelayMillis, 0, \
"Delay in ms in scheduling GC workers") \ "Delay in scheduling GC workers (in milliseconds)") \
\ \
product(intx, DeferThrSuspendLoopCount, 4000, \ product(intx, DeferThrSuspendLoopCount, 4000, \
"(Unstable) Number of times to iterate in safepoint loop " \ "(Unstable) Number of times to iterate in safepoint loop " \
" before blocking VM threads ") \ "before blocking VM threads ") \
\ \
product(intx, DeferPollingPageLoopCount, -1, \ product(intx, DeferPollingPageLoopCount, -1, \
"(Unsafe,Unstable) Number of iterations in safepoint loop " \ "(Unsafe,Unstable) Number of iterations in safepoint loop " \
"before changing safepoint polling page to RO ") \ "before changing safepoint polling page to RO ") \
\ \
product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
\ \
product(bool, PSChunkLargeArrays, true, \ product(bool, PSChunkLargeArrays, true, \
"true: process large arrays in chunks") \ "Process large arrays in chunks") \
\ \
product(uintx, GCDrainStackTargetSize, 64, \ product(uintx, GCDrainStackTargetSize, 64, \
"how many entries we'll try to leave on the stack during " \ "Number of entries we will try to leave on the stack " \
"parallel GC") \ "during parallel gc") \
\ \
/* stack parameters */ \ /* stack parameters */ \
product_pd(intx, StackYellowPages, \ product_pd(intx, StackYellowPages, \
...@@ -3146,8 +3177,8 @@ class CommandLineFlags { ...@@ -3146,8 +3177,8 @@ class CommandLineFlags {
"Number of red zone (unrecoverable overflows) pages") \ "Number of red zone (unrecoverable overflows) pages") \
\ \
product_pd(intx, StackShadowPages, \ product_pd(intx, StackShadowPages, \
"Number of shadow zone (for overflow checking) pages" \ "Number of shadow zone (for overflow checking) pages " \
" this should exceed the depth of the VM and native call stack") \ "this should exceed the depth of the VM and native call stack") \
\ \
product_pd(intx, ThreadStackSize, \ product_pd(intx, ThreadStackSize, \
"Thread Stack Size (in Kbytes)") \ "Thread Stack Size (in Kbytes)") \
...@@ -3187,22 +3218,22 @@ class CommandLineFlags { ...@@ -3187,22 +3218,22 @@ class CommandLineFlags {
"Reserved code cache size (in bytes) - maximum code cache size") \ "Reserved code cache size (in bytes) - maximum code cache size") \
\ \
product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ product(uintx, CodeCacheMinimumFreeSpace, 500*K, \
"When less than X space left, we stop compiling.") \ "When less than X space left, we stop compiling") \
\ \
product_pd(uintx, CodeCacheExpansionSize, \ product_pd(uintx, CodeCacheExpansionSize, \
"Code cache expansion size (in bytes)") \ "Code cache expansion size (in bytes)") \
\ \
develop_pd(uintx, CodeCacheMinBlockLength, \ develop_pd(uintx, CodeCacheMinBlockLength, \
"Minimum number of segments in a code cache block.") \ "Minimum number of segments in a code cache block") \
\ \
notproduct(bool, ExitOnFullCodeCache, false, \ notproduct(bool, ExitOnFullCodeCache, false, \
"Exit the VM if we fill the code cache.") \ "Exit the VM if we fill the code cache") \
\ \
product(bool, UseCodeCacheFlushing, true, \ product(bool, UseCodeCacheFlushing, true, \
"Attempt to clean the code cache before shutting off compiler") \ "Attempt to clean the code cache before shutting off compiler") \
\ \
product(intx, MinCodeCacheFlushingInterval, 30, \ product(intx, MinCodeCacheFlushingInterval, 30, \
"Min number of seconds between code cache cleaning sessions") \ "Minimum number of seconds between code cache cleaning sessions") \
\ \
product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \
"When less than X space left, start code cache cleaning") \ "When less than X space left, start code cache cleaning") \
...@@ -3216,31 +3247,31 @@ class CommandLineFlags { ...@@ -3216,31 +3247,31 @@ class CommandLineFlags {
"switch") \ "switch") \
\ \
develop(intx, StopInterpreterAt, 0, \ develop(intx, StopInterpreterAt, 0, \
"Stops interpreter execution at specified bytecode number") \ "Stop interpreter execution at specified bytecode number") \
\ \
develop(intx, TraceBytecodesAt, 0, \ develop(intx, TraceBytecodesAt, 0, \
"Traces bytecodes starting with specified bytecode number") \ "Trace bytecodes starting with specified bytecode number") \
\ \
/* compiler interface */ \ /* compiler interface */ \
develop(intx, CIStart, 0, \ develop(intx, CIStart, 0, \
"the id of the first compilation to permit") \ "The id of the first compilation to permit") \
\ \
develop(intx, CIStop, -1, \ develop(intx, CIStop, -1, \
"the id of the last compilation to permit") \ "The id of the last compilation to permit") \
\ \
develop(intx, CIStartOSR, 0, \ develop(intx, CIStartOSR, 0, \
"the id of the first osr compilation to permit " \ "The id of the first osr compilation to permit " \
"(CICountOSR must be on)") \ "(CICountOSR must be on)") \
\ \
develop(intx, CIStopOSR, -1, \ develop(intx, CIStopOSR, -1, \
"the id of the last osr compilation to permit " \ "The id of the last osr compilation to permit " \
"(CICountOSR must be on)") \ "(CICountOSR must be on)") \
\ \
develop(intx, CIBreakAtOSR, -1, \ develop(intx, CIBreakAtOSR, -1, \
"id of osr compilation to break at") \ "The id of osr compilation to break at") \
\ \
develop(intx, CIBreakAt, -1, \ develop(intx, CIBreakAt, -1, \
"id of compilation to break at") \ "The id of compilation to break at") \
\ \
product(ccstrlist, CompileOnly, "", \ product(ccstrlist, CompileOnly, "", \
"List of methods (pkg/class.name) to restrict compilation to") \ "List of methods (pkg/class.name) to restrict compilation to") \
...@@ -3259,11 +3290,11 @@ class CommandLineFlags { ...@@ -3259,11 +3290,11 @@ class CommandLineFlags {
"[default: ./replay_pid%p.log] (%p replaced with pid)") \ "[default: ./replay_pid%p.log] (%p replaced with pid)") \
\ \
develop(intx, ReplaySuppressInitializers, 2, \ develop(intx, ReplaySuppressInitializers, 2, \
"Controls handling of class initialization during replay" \ "Control handling of class initialization during replay: " \
"0 - don't do anything special" \ "0 - don't do anything special; " \
"1 - treat all class initializers as empty" \ "1 - treat all class initializers as empty; " \
"2 - treat class initializers for application classes as empty" \ "2 - treat class initializers for application classes as empty; " \
"3 - allow all class initializers to run during bootstrap but" \ "3 - allow all class initializers to run during bootstrap but " \
" pretend they are empty after starting replay") \ " pretend they are empty after starting replay") \
\ \
develop(bool, ReplayIgnoreInitErrors, false, \ develop(bool, ReplayIgnoreInitErrors, false, \
...@@ -3292,14 +3323,15 @@ class CommandLineFlags { ...@@ -3292,14 +3323,15 @@ class CommandLineFlags {
"0 : Normal. "\ "0 : Normal. "\
" VM chooses priorities that are appropriate for normal "\ " VM chooses priorities that are appropriate for normal "\
" applications. On Solaris NORM_PRIORITY and above are mapped "\ " applications. On Solaris NORM_PRIORITY and above are mapped "\
" to normal native priority. Java priorities below NORM_PRIORITY"\ " to normal native priority. Java priorities below " \
" map to lower native priority values. On Windows applications"\ " NORM_PRIORITY map to lower native priority values. On "\
" are allowed to use higher native priorities. However, with "\ " Windows applications are allowed to use higher native "\
" ThreadPriorityPolicy=0, VM will not use the highest possible"\ " priorities. However, with ThreadPriorityPolicy=0, VM will "\
" native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ " not use the highest possible native priority, "\
" interfere with system threads. On Linux thread priorities "\ " THREAD_PRIORITY_TIME_CRITICAL, as it may interfere with "\
" are ignored because the OS does not support static priority "\ " system threads. On Linux thread priorities are ignored "\
" in SCHED_OTHER scheduling class which is the only choice for"\ " because the OS does not support static priority in "\
" SCHED_OTHER scheduling class which is the only choice for "\
" non-root, non-realtime applications. "\ " non-root, non-realtime applications. "\
"1 : Aggressive. "\ "1 : Aggressive. "\
" Java thread priorities map over to the entire range of "\ " Java thread priorities map over to the entire range of "\
...@@ -3330,16 +3362,35 @@ class CommandLineFlags { ...@@ -3330,16 +3362,35 @@ class CommandLineFlags {
product(bool, VMThreadHintNoPreempt, false, \ product(bool, VMThreadHintNoPreempt, false, \
"(Solaris only) Give VM thread an extra quanta") \ "(Solaris only) Give VM thread an extra quanta") \
\ \
product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ product(intx, JavaPriority1_To_OSPriority, -1, \
product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ "Map Java priorities to OS priorities") \
product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ \
product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ product(intx, JavaPriority2_To_OSPriority, -1, \
product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ "Map Java priorities to OS priorities") \
product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ \
product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ product(intx, JavaPriority3_To_OSPriority, -1, \
product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ "Map Java priorities to OS priorities") \
product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ \
product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ product(intx, JavaPriority4_To_OSPriority, -1, \
"Map Java priorities to OS priorities") \
\
product(intx, JavaPriority5_To_OSPriority, -1, \
"Map Java priorities to OS priorities") \
\
product(intx, JavaPriority6_To_OSPriority, -1, \
"Map Java priorities to OS priorities") \
\
product(intx, JavaPriority7_To_OSPriority, -1, \
"Map Java priorities to OS priorities") \
\
product(intx, JavaPriority8_To_OSPriority, -1, \
"Map Java priorities to OS priorities") \
\
product(intx, JavaPriority9_To_OSPriority, -1, \
"Map Java priorities to OS priorities") \
\
product(intx, JavaPriority10_To_OSPriority,-1, \
"Map Java priorities to OS priorities") \
\ \
experimental(bool, UseCriticalJavaThreadPriority, false, \ experimental(bool, UseCriticalJavaThreadPriority, false, \
"Java thread priority 10 maps to critical scheduling priority") \ "Java thread priority 10 maps to critical scheduling priority") \
...@@ -3370,37 +3421,38 @@ class CommandLineFlags { ...@@ -3370,37 +3421,38 @@ class CommandLineFlags {
"Used with +TraceLongCompiles") \ "Used with +TraceLongCompiles") \
\ \
product(intx, StarvationMonitorInterval, 200, \ product(intx, StarvationMonitorInterval, 200, \
"Pause between each check in ms") \ "Pause between each check (in milliseconds)") \
\ \
/* recompilation */ \ /* recompilation */ \
product_pd(intx, CompileThreshold, \ product_pd(intx, CompileThreshold, \
"number of interpreted method invocations before (re-)compiling") \ "number of interpreted method invocations before (re-)compiling") \
\ \
product_pd(intx, BackEdgeThreshold, \ product_pd(intx, BackEdgeThreshold, \
"Interpreter Back edge threshold at which an OSR compilation is invoked")\ "Interpreter Back edge threshold at which an OSR compilation is " \
"invoked") \
\ \
product(intx, Tier0InvokeNotifyFreqLog, 7, \ product(intx, Tier0InvokeNotifyFreqLog, 7, \
"Interpreter (tier 0) invocation notification frequency.") \ "Interpreter (tier 0) invocation notification frequency") \
\ \
product(intx, Tier2InvokeNotifyFreqLog, 11, \ product(intx, Tier2InvokeNotifyFreqLog, 11, \
"C1 without MDO (tier 2) invocation notification frequency.") \ "C1 without MDO (tier 2) invocation notification frequency") \
\ \
product(intx, Tier3InvokeNotifyFreqLog, 10, \ product(intx, Tier3InvokeNotifyFreqLog, 10, \
"C1 with MDO profiling (tier 3) invocation notification " \ "C1 with MDO profiling (tier 3) invocation notification " \
"frequency.") \ "frequency") \
\ \
product(intx, Tier23InlineeNotifyFreqLog, 20, \ product(intx, Tier23InlineeNotifyFreqLog, 20, \
"Inlinee invocation (tiers 2 and 3) notification frequency") \ "Inlinee invocation (tiers 2 and 3) notification frequency") \
\ \
product(intx, Tier0BackedgeNotifyFreqLog, 10, \ product(intx, Tier0BackedgeNotifyFreqLog, 10, \
"Interpreter (tier 0) invocation notification frequency.") \ "Interpreter (tier 0) invocation notification frequency") \
\ \
product(intx, Tier2BackedgeNotifyFreqLog, 14, \ product(intx, Tier2BackedgeNotifyFreqLog, 14, \
"C1 without MDO (tier 2) invocation notification frequency.") \ "C1 without MDO (tier 2) invocation notification frequency") \
\ \
product(intx, Tier3BackedgeNotifyFreqLog, 13, \ product(intx, Tier3BackedgeNotifyFreqLog, 13, \
"C1 with MDO profiling (tier 3) invocation notification " \ "C1 with MDO profiling (tier 3) invocation notification " \
"frequency.") \ "frequency") \
\ \
product(intx, Tier2CompileThreshold, 0, \ product(intx, Tier2CompileThreshold, 0, \
"threshold at which tier 2 compilation is invoked") \ "threshold at which tier 2 compilation is invoked") \
...@@ -3417,7 +3469,7 @@ class CommandLineFlags { ...@@ -3417,7 +3469,7 @@ class CommandLineFlags {
\ \
product(intx, Tier3CompileThreshold, 2000, \ product(intx, Tier3CompileThreshold, 2000, \
"Threshold at which tier 3 compilation is invoked (invocation " \ "Threshold at which tier 3 compilation is invoked (invocation " \
"minimum must be satisfied.") \ "minimum must be satisfied") \
\ \
product(intx, Tier3BackEdgeThreshold, 60000, \ product(intx, Tier3BackEdgeThreshold, 60000, \
"Back edge threshold at which tier 3 OSR compilation is invoked") \ "Back edge threshold at which tier 3 OSR compilation is invoked") \
...@@ -3431,7 +3483,7 @@ class CommandLineFlags { ...@@ -3431,7 +3483,7 @@ class CommandLineFlags {
\ \
product(intx, Tier4CompileThreshold, 15000, \ product(intx, Tier4CompileThreshold, 15000, \
"Threshold at which tier 4 compilation is invoked (invocation " \ "Threshold at which tier 4 compilation is invoked (invocation " \
"minimum must be satisfied.") \ "minimum must be satisfied") \
\ \
product(intx, Tier4BackEdgeThreshold, 40000, \ product(intx, Tier4BackEdgeThreshold, 40000, \
"Back edge threshold at which tier 4 OSR compilation is invoked") \ "Back edge threshold at which tier 4 OSR compilation is invoked") \
...@@ -3460,12 +3512,12 @@ class CommandLineFlags { ...@@ -3460,12 +3512,12 @@ class CommandLineFlags {
"Stop at given compilation level") \ "Stop at given compilation level") \
\ \
product(intx, Tier0ProfilingStartPercentage, 200, \ product(intx, Tier0ProfilingStartPercentage, 200, \
"Start profiling in interpreter if the counters exceed tier 3" \ "Start profiling in interpreter if the counters exceed tier 3 " \
"thresholds by the specified percentage") \ "thresholds by the specified percentage") \
\ \
product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \ product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \
"Increase the compile threshold for C1 compilation if the code" \ "Increase the compile threshold for C1 compilation if the code " \
"cache is filled by the specified percentage.") \ "cache is filled by the specified percentage") \
\ \
product(intx, TieredRateUpdateMinTime, 1, \ product(intx, TieredRateUpdateMinTime, 1, \
"Minimum rate sampling interval (in milliseconds)") \ "Minimum rate sampling interval (in milliseconds)") \
...@@ -3480,24 +3532,26 @@ class CommandLineFlags { ...@@ -3480,24 +3532,26 @@ class CommandLineFlags {
"Print tiered events notifications") \ "Print tiered events notifications") \
\ \
product_pd(intx, OnStackReplacePercentage, \ product_pd(intx, OnStackReplacePercentage, \
"NON_TIERED number of method invocations/branches (expressed as %"\ "NON_TIERED number of method invocations/branches (expressed as " \
"of CompileThreshold) before (re-)compiling OSR code") \ "% of CompileThreshold) before (re-)compiling OSR code") \
\ \
product(intx, InterpreterProfilePercentage, 33, \ product(intx, InterpreterProfilePercentage, 33, \
"NON_TIERED number of method invocations/branches (expressed as %"\ "NON_TIERED number of method invocations/branches (expressed as " \
"of CompileThreshold) before profiling in the interpreter") \ "% of CompileThreshold) before profiling in the interpreter") \
\ \
develop(intx, MaxRecompilationSearchLength, 10, \ develop(intx, MaxRecompilationSearchLength, 10, \
"max. # frames to inspect searching for recompilee") \ "The maximum number of frames to inspect when searching for " \
"recompilee") \
\ \
develop(intx, MaxInterpretedSearchLength, 3, \ develop(intx, MaxInterpretedSearchLength, 3, \
"max. # interp. frames to skip when searching for recompilee") \ "The maximum number of interpreted frames to skip when searching "\
"for recompilee") \
\ \
develop(intx, DesiredMethodLimit, 8000, \ develop(intx, DesiredMethodLimit, 8000, \
"desired max. method size (in bytecodes) after inlining") \ "The desired maximum method size (in bytecodes) after inlining") \
\ \
develop(intx, HugeMethodLimit, 8000, \ develop(intx, HugeMethodLimit, 8000, \
"don't compile methods larger than this if " \ "Don't compile methods larger than this if " \
"+DontCompileHugeMethods") \ "+DontCompileHugeMethods") \
\ \
/* New JDK 1.4 reflection implementation */ \ /* New JDK 1.4 reflection implementation */ \
...@@ -3519,7 +3573,7 @@ class CommandLineFlags { ...@@ -3519,7 +3573,7 @@ class CommandLineFlags {
"in InvocationTargetException. See 6531596") \ "in InvocationTargetException. See 6531596") \
\ \
develop(bool, VerifyLambdaBytecodes, false, \ develop(bool, VerifyLambdaBytecodes, false, \
"Force verification of jdk 8 lambda metafactory bytecodes.") \ "Force verification of jdk 8 lambda metafactory bytecodes") \
\ \
develop(intx, FastSuperclassLimit, 8, \ develop(intx, FastSuperclassLimit, 8, \
"Depth of hardwired instanceof accelerator array") \ "Depth of hardwired instanceof accelerator array") \
...@@ -3543,18 +3597,19 @@ class CommandLineFlags { ...@@ -3543,18 +3597,19 @@ class CommandLineFlags {
/* flags for performance data collection */ \ /* flags for performance data collection */ \
\ \
product(bool, UsePerfData, falseInEmbedded, \ product(bool, UsePerfData, falseInEmbedded, \
"Flag to disable jvmstat instrumentation for performance testing" \ "Flag to disable jvmstat instrumentation for performance testing "\
"and problem isolation purposes.") \ "and problem isolation purposes") \
\ \
product(bool, PerfDataSaveToFile, false, \ product(bool, PerfDataSaveToFile, false, \
"Save PerfData memory to hsperfdata_<pid> file on exit") \ "Save PerfData memory to hsperfdata_<pid> file on exit") \
\ \
product(ccstr, PerfDataSaveFile, NULL, \ product(ccstr, PerfDataSaveFile, NULL, \
"Save PerfData memory to the specified absolute pathname," \ "Save PerfData memory to the specified absolute pathname. " \
"%p in the file name if present will be replaced by pid") \ "The string %p in the file name (if present) " \
"will be replaced by pid") \
\ \
product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ product(intx, PerfDataSamplingInterval, 50, \
"Data sampling interval in milliseconds") \ "Data sampling interval (in milliseconds)") \
\ \
develop(bool, PerfTraceDataCreation, false, \ develop(bool, PerfTraceDataCreation, false, \
"Trace creation of Performance Data Entries") \ "Trace creation of Performance Data Entries") \
...@@ -3579,7 +3634,7 @@ class CommandLineFlags { ...@@ -3579,7 +3634,7 @@ class CommandLineFlags {
"Bypass Win32 file system criteria checks (Windows Only)") \ "Bypass Win32 file system criteria checks (Windows Only)") \
\ \
product(intx, UnguardOnExecutionViolation, 0, \ product(intx, UnguardOnExecutionViolation, 0, \
"Unguard page and retry on no-execute fault (Win32 only)" \ "Unguard page and retry on no-execute fault (Win32 only) " \
"0=off, 1=conservative, 2=aggressive") \ "0=off, 1=conservative, 2=aggressive") \
\ \
/* Serviceability Support */ \ /* Serviceability Support */ \
...@@ -3588,7 +3643,7 @@ class CommandLineFlags { ...@@ -3588,7 +3643,7 @@ class CommandLineFlags {
"Create JMX Management Server") \ "Create JMX Management Server") \
\ \
product(bool, DisableAttachMechanism, false, \ product(bool, DisableAttachMechanism, false, \
"Disable mechanism that allows tools to attach to this VM") \ "Disable mechanism that allows tools to attach to this VM") \
\ \
product(bool, StartAttachListener, false, \ product(bool, StartAttachListener, false, \
"Always start Attach Listener at VM startup") \ "Always start Attach Listener at VM startup") \
...@@ -3611,9 +3666,9 @@ class CommandLineFlags { ...@@ -3611,9 +3666,9 @@ class CommandLineFlags {
"Require shared spaces for metadata") \ "Require shared spaces for metadata") \
\ \
product(bool, DumpSharedSpaces, false, \ product(bool, DumpSharedSpaces, false, \
"Special mode: JVM reads a class list, loads classes, builds " \ "Special mode: JVM reads a class list, loads classes, builds " \
"shared spaces, and dumps the shared spaces to a file to be " \ "shared spaces, and dumps the shared spaces to a file to be " \
"used in future JVM runs.") \ "used in future JVM runs") \
\ \
product(bool, PrintSharedSpaces, false, \ product(bool, PrintSharedSpaces, false, \
"Print usage of shared spaces") \ "Print usage of shared spaces") \
...@@ -3686,7 +3741,7 @@ class CommandLineFlags { ...@@ -3686,7 +3741,7 @@ class CommandLineFlags {
"Relax the access control checks in the verifier") \ "Relax the access control checks in the verifier") \
\ \
diagnostic(bool, PrintDTraceDOF, false, \ diagnostic(bool, PrintDTraceDOF, false, \
"Print the DTrace DOF passed to the system for JSDT probes") \ "Print the DTrace DOF passed to the system for JSDT probes") \
\ \
product(uintx, StringTableSize, defaultStringTableSize, \ product(uintx, StringTableSize, defaultStringTableSize, \
"Number of buckets in the interned String table") \ "Number of buckets in the interned String table") \
...@@ -3699,8 +3754,8 @@ class CommandLineFlags { ...@@ -3699,8 +3754,8 @@ class CommandLineFlags {
\ \
product(bool, UseVMInterruptibleIO, false, \ product(bool, UseVMInterruptibleIO, false, \
"(Unstable, Solaris-specific) Thread interrupt before or with " \ "(Unstable, Solaris-specific) Thread interrupt before or with " \
"EINTR for I/O operations results in OS_INTRPT. The default value"\ "EINTR for I/O operations results in OS_INTRPT. The default " \
" of this flag is true for JDK 6 and earlier") \ "value of this flag is true for JDK 6 and earlier") \
\ \
diagnostic(bool, WhiteBoxAPI, false, \ diagnostic(bool, WhiteBoxAPI, false, \
"Enable internal testing APIs") \ "Enable internal testing APIs") \
...@@ -3721,6 +3776,7 @@ class CommandLineFlags { ...@@ -3721,6 +3776,7 @@ class CommandLineFlags {
\ \
product(bool, EnableTracing, false, \ product(bool, EnableTracing, false, \
"Enable event-based tracing") \ "Enable event-based tracing") \
\
product(bool, UseLockedTracing, false, \ product(bool, UseLockedTracing, false, \
"Use locked-tracing when doing event-based tracing") "Use locked-tracing when doing event-based tracing")
......
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