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提交 c9aacad9 编写于 作者: A anoll
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8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005 

Summary: Remove obsolete code that relates to ISM which was used only on Solaris 8.
Reviewed-by: kvn, twisti
上级 2831ce91
隐藏空白更改
内联 并排
Showing with 35 addition and 274 deletion
src/os/solaris/vm/globals_solaris.hpp
浏览文件 @ c9aacad9
......@@ -30,15 +30,6 @@
//
#define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct) \
\
product(bool, UseISM, false, \
"Use Intimate Shared Memory (Solaris Only)") \
\
product(bool, UsePermISM, false, \
"Obsolete flag for compatibility (same as UseISM)") \
\
product(bool, UseMPSS, true, \
"Use Multiple Page Size Support (Solaris 9 Only)") \
\
product(bool, UseExtendedFileIO, true, \
"Enable workaround for limitations of stdio FILE structure")
......
src/os/solaris/vm/os_solaris.cpp
浏览文件 @ c9aacad9
......@@ -115,45 +115,6 @@
// for timer info max values which include all bits
#define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF)
#ifdef _GNU_SOURCE
// See bug #6514594
extern "C" int madvise(caddr_t, size_t, int);
extern "C" int memcntl(caddr_t addr, size_t len, int cmd, caddr_t arg,
int attr, int mask);
#endif //_GNU_SOURCE
/*
MPSS Changes Start.
The JVM binary needs to be built and run on pre-Solaris 9
systems, but the constants needed by MPSS are only in Solaris 9
header files. They are textually replicated here to allow
building on earlier systems. Once building on Solaris 8 is
no longer a requirement, these #defines can be replaced by ordinary
system .h inclusion.
In earlier versions of the JDK and Solaris, we used ISM for large pages.
But ISM requires shared memory to achieve this and thus has many caveats.
MPSS is a fully transparent and is a cleaner way to get large pages.
Although we still require keeping ISM for backward compatiblitiy as well as
giving the opportunity to use large pages on older systems it is
recommended that MPSS be used for Solaris 9 and above.
*/
#ifndef MC_HAT_ADVISE
struct memcntl_mha {
uint_t mha_cmd; /* command(s) */
uint_t mha_flags;
size_t mha_pagesize;
};
#define MC_HAT_ADVISE 7 /* advise hat map size */
#define MHA_MAPSIZE_VA 0x1 /* set preferred page size */
#define MAP_ALIGN 0x200 /* addr specifies alignment */
#endif
// MPSS Changes End.
// Here are some liblgrp types from sys/lgrp_user.h to be able to
// compile on older systems without this header file.
......@@ -172,32 +133,6 @@ struct memcntl_mha {
# define LGRP_RSRC_MEM 1 /* memory resources */
#endif
// Some more macros from sys/mman.h that are not present in Solaris 8.
#ifndef MAX_MEMINFO_CNT
/*
* info_req request type definitions for meminfo
* request types starting with MEMINFO_V are used for Virtual addresses
* and should not be mixed with MEMINFO_PLGRP which is targeted for Physical
* addresses
*/
# define MEMINFO_SHIFT 16
# define MEMINFO_MASK (0xFF << MEMINFO_SHIFT)
# define MEMINFO_VPHYSICAL (0x01 << MEMINFO_SHIFT) /* get physical addr */
# define MEMINFO_VLGRP (0x02 << MEMINFO_SHIFT) /* get lgroup */
# define MEMINFO_VPAGESIZE (0x03 << MEMINFO_SHIFT) /* size of phys page */
# define MEMINFO_VREPLCNT (0x04 << MEMINFO_SHIFT) /* no. of replica */
# define MEMINFO_VREPL (0x05 << MEMINFO_SHIFT) /* physical replica */
# define MEMINFO_VREPL_LGRP (0x06 << MEMINFO_SHIFT) /* lgrp of replica */
# define MEMINFO_PLGRP (0x07 << MEMINFO_SHIFT) /* lgroup for paddr */
/* maximum number of addresses meminfo() can process at a time */
# define MAX_MEMINFO_CNT 256
/* maximum number of request types */
# define MAX_MEMINFO_REQ 31
#endif
// see thr_setprio(3T) for the basis of these numbers
#define MinimumPriority 0
#define NormalPriority 64
......@@ -2859,7 +2794,7 @@ int os::Solaris::commit_memory_impl(char* addr, size_t bytes,
size_t alignment_hint, bool exec) {
int err = Solaris::commit_memory_impl(addr, bytes, exec);
if (err == 0) {
if (UseMPSS && alignment_hint > (size_t)vm_page_size()) {
if (UseLargePages && (alignment_hint > (size_t)vm_page_size())) {
// If the large page size has been set and the VM
// is using large pages, use the large page size
// if it is smaller than the alignment hint. This is
......@@ -2878,7 +2813,7 @@ int os::Solaris::commit_memory_impl(char* addr, size_t bytes,
page_size = alignment_hint;
}
// Since this is a hint, ignore any failures.
(void)Solaris::set_mpss_range(addr, bytes, page_size);
(void)Solaris::setup_large_pages(addr, bytes, page_size);
}
}
return err;
......@@ -2921,8 +2856,8 @@ bool os::remove_stack_guard_pages(char* addr, size_t size) {
void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) {
assert((intptr_t)addr % alignment_hint == 0, "Address should be aligned.");
assert((intptr_t)(addr + bytes) % alignment_hint == 0, "End should be aligned.");
if (UseLargePages && UseMPSS) {
Solaris::set_mpss_range(addr, bytes, alignment_hint);
if (UseLargePages) {
Solaris::setup_large_pages(addr, bytes, alignment_hint);
}
}
......@@ -3321,47 +3256,8 @@ bool os::unguard_memory(char* addr, size_t bytes) {
}
// Large page support
// UseLargePages is the master flag to enable/disable large page memory.
// UseMPSS and UseISM are supported for compatibility reasons. Their combined
// effects can be described in the following table:
//
// UseLargePages UseMPSS UseISM
// false * * => UseLargePages is the master switch, turning
// it off will turn off both UseMPSS and
// UseISM. VM will not use large page memory
// regardless the settings of UseMPSS/UseISM.
// true false false => Unless future Solaris provides other
// mechanism to use large page memory, this
// combination is equivalent to -UseLargePages,
// VM will not use large page memory
// true true false => JVM will use MPSS for large page memory.
// This is the default behavior.
// true false true => JVM will use ISM for large page memory.
// true true true => JVM will use ISM if it is available.
// Otherwise, JVM will fall back to MPSS.
// Becaues ISM is now available on all
// supported Solaris versions, this combination
// is equivalent to +UseISM -UseMPSS.
static size_t _large_page_size = 0;
bool os::Solaris::ism_sanity_check(bool warn, size_t * page_size) {
// x86 uses either 2M or 4M page, depending on whether PAE (Physical Address
// Extensions) mode is enabled. AMD64/EM64T uses 2M page in 64bit mode. Sparc
// can support multiple page sizes.
// Don't bother to probe page size because getpagesizes() comes with MPSS.
// ISM is only recommended on old Solaris where there is no MPSS support.
// Simply choose a conservative value as default.
*page_size = LargePageSizeInBytes ? LargePageSizeInBytes :
SPARC_ONLY(4 * M) IA32_ONLY(4 * M) AMD64_ONLY(2 * M)
ARM_ONLY(2 * M);
// ISM is available on all supported Solaris versions
return true;
}
// Insertion sort for small arrays (descending order).
static void insertion_sort_descending(size_t* array, int len) {
for (int i = 0; i < len; i++) {
......@@ -3374,7 +3270,7 @@ static void insertion_sort_descending(size_t* array, int len) {
}
}
bool os::Solaris::mpss_sanity_check(bool warn, size_t * page_size) {
bool os::Solaris::mpss_sanity_check(bool warn, size_t* page_size) {
const unsigned int usable_count = VM_Version::page_size_count();
if (usable_count == 1) {
return false;
......@@ -3440,41 +3336,24 @@ bool os::Solaris::mpss_sanity_check(bool warn, size_t * page_size) {
}
void os::large_page_init() {
if (!UseLargePages) {
UseISM = false;
UseMPSS = false;
return;
}
if (UseLargePages) {
// print a warning if any large page related flag is specified on command line
bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) ||
!FLAG_IS_DEFAULT(LargePageSizeInBytes);
// print a warning if any large page related flag is specified on command line
bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) ||
!FLAG_IS_DEFAULT(UseISM) ||
!FLAG_IS_DEFAULT(UseMPSS) ||
!FLAG_IS_DEFAULT(LargePageSizeInBytes);
UseISM = UseISM &&
Solaris::ism_sanity_check(warn_on_failure, &_large_page_size);
if (UseISM) {
// ISM disables MPSS to be compatible with old JDK behavior
UseMPSS = false;
_page_sizes[0] = _large_page_size;
_page_sizes[1] = vm_page_size();
UseLargePages = Solaris::mpss_sanity_check(warn_on_failure, &_large_page_size);
}
UseMPSS = UseMPSS &&
Solaris::mpss_sanity_check(warn_on_failure, &_large_page_size);
UseLargePages = UseISM || UseMPSS;
}
bool os::Solaris::set_mpss_range(caddr_t start, size_t bytes, size_t align) {
bool os::Solaris::setup_large_pages(caddr_t start, size_t bytes, size_t align) {
// Signal to OS that we want large pages for addresses
// from addr, addr + bytes
struct memcntl_mha mpss_struct;
mpss_struct.mha_cmd = MHA_MAPSIZE_VA;
mpss_struct.mha_pagesize = align;
mpss_struct.mha_flags = 0;
if (memcntl(start, bytes, MC_HAT_ADVISE,
(caddr_t) &mpss_struct, 0, 0) < 0) {
// Upon successful completion, memcntl() returns 0
if (memcntl(start, bytes, MC_HAT_ADVISE, (caddr_t) &mpss_struct, 0, 0)) {
debug_only(warning("Attempt to use MPSS failed."));
return false;
}
......@@ -3482,72 +3361,13 @@ bool os::Solaris::set_mpss_range(caddr_t start, size_t bytes, size_t align) {
}
char* os::reserve_memory_special(size_t size, char* addr, bool exec) {
// "exec" is passed in but not used. Creating the shared image for
// the code cache doesn't have an SHM_X executable permission to check.
assert(UseLargePages && UseISM, "only for ISM large pages");
char* retAddr = NULL;
int shmid;
key_t ismKey;
bool warn_on_failure = UseISM &&
(!FLAG_IS_DEFAULT(UseLargePages) ||
!FLAG_IS_DEFAULT(UseISM) ||
!FLAG_IS_DEFAULT(LargePageSizeInBytes)
);
char msg[128];
ismKey = IPC_PRIVATE;
// Create a large shared memory region to attach to based on size.
// Currently, size is the total size of the heap
shmid = shmget(ismKey, size, SHM_R | SHM_W | IPC_CREAT);
if (shmid == -1){
if (warn_on_failure) {
jio_snprintf(msg, sizeof(msg), "Failed to reserve shared memory (errno = %d).", errno);
warning(msg);
}
return NULL;
}
// Attach to the region
retAddr = (char *) shmat(shmid, 0, SHM_SHARE_MMU | SHM_R | SHM_W);
int err = errno;
// Remove shmid. If shmat() is successful, the actual shared memory segment
// will be deleted when it's detached by shmdt() or when the process
// terminates. If shmat() is not successful this will remove the shared
// segment immediately.
shmctl(shmid, IPC_RMID, NULL);
if (retAddr == (char *) -1) {
if (warn_on_failure) {
jio_snprintf(msg, sizeof(msg), "Failed to attach shared memory (errno = %d).", err);
warning(msg);
}
return NULL;
}
if ((retAddr != NULL) && UseNUMAInterleaving) {
numa_make_global(retAddr, size);
}
// The memory is committed
MemTracker::record_virtual_memory_reserve_and_commit((address)retAddr, size, mtNone, CURRENT_PC);
return retAddr;
fatal("os::reserve_memory_special should not be called on Solaris.");
return NULL;
}
bool os::release_memory_special(char* base, size_t bytes) {
MemTracker::Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
// detaching the SHM segment will also delete it, see reserve_memory_special()
int rslt = shmdt(base);
if (rslt == 0) {
tkr.record((address)base, bytes);
return true;
} else {
tkr.discard();
return false;
}
fatal("os::release_memory_special should not be called on Solaris.");
return false;
}
size_t os::large_page_size() {
......@@ -3557,11 +3377,11 @@ size_t os::large_page_size() {
// MPSS allows application to commit large page memory on demand; with ISM
// the entire memory region must be allocated as shared memory.
bool os::can_commit_large_page_memory() {
return UseISM ? false : true;
return true;
}
bool os::can_execute_large_page_memory() {
return UseISM ? false : true;
return true;
}
static int os_sleep(jlong millis, bool interruptible) {
......@@ -3835,28 +3655,6 @@ static bool priocntl_enable = false;
static const int criticalPrio = 60; // FX/60 is critical thread class/priority on T4
static int java_MaxPriority_to_os_priority = 0; // Saved mapping
// Call the version of priocntl suitable for all supported versions
// of Solaris. We need to call through this wrapper so that we can
// build on Solaris 9 and run on Solaris 8, 9 and 10.
//
// This code should be removed if we ever stop supporting Solaris 8
// and earlier releases.
static long priocntl_stub(int pcver, idtype_t idtype, id_t id, int cmd, caddr_t arg);
typedef long (*priocntl_type)(int pcver, idtype_t idtype, id_t id, int cmd, caddr_t arg);
static priocntl_type priocntl_ptr = priocntl_stub;
// Stub to set the value of the real pointer, and then call the real
// function.
static long priocntl_stub(int pcver, idtype_t idtype, id_t id, int cmd, caddr_t arg) {
// Try Solaris 8- name only.
priocntl_type tmp = (priocntl_type)dlsym(RTLD_DEFAULT, "__priocntl");
guarantee(tmp != NULL, "priocntl function not found.");
priocntl_ptr = tmp;
return (*priocntl_ptr)(PC_VERSION, idtype, id, cmd, arg);
}
// lwp_priocntl_init
//
......@@ -3864,9 +3662,7 @@ static long priocntl_stub(int pcver, idtype_t idtype, id_t id, int cmd, caddr_t
//
// Return errno or 0 if OK.
//
static
int lwp_priocntl_init ()
{
static int lwp_priocntl_init () {
int rslt;
pcinfo_t ClassInfo;
pcparms_t ParmInfo;
......@@ -3906,7 +3702,7 @@ int lwp_priocntl_init ()
strcpy(ClassInfo.pc_clname, "TS");
ClassInfo.pc_cid = -1;
rslt = (*priocntl_ptr)(PC_VERSION, P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
if (rslt < 0) return errno;
assert(ClassInfo.pc_cid != -1, "cid for TS class is -1");
tsLimits.schedPolicy = ClassInfo.pc_cid;
......@@ -3915,7 +3711,7 @@ int lwp_priocntl_init ()
strcpy(ClassInfo.pc_clname, "IA");
ClassInfo.pc_cid = -1;
rslt = (*priocntl_ptr)(PC_VERSION, P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
if (rslt < 0) return errno;
assert(ClassInfo.pc_cid != -1, "cid for IA class is -1");
iaLimits.schedPolicy = ClassInfo.pc_cid;
......@@ -3924,7 +3720,7 @@ int lwp_priocntl_init ()
strcpy(ClassInfo.pc_clname, "RT");
ClassInfo.pc_cid = -1;
rslt = (*priocntl_ptr)(PC_VERSION, P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
if (rslt < 0) return errno;
assert(ClassInfo.pc_cid != -1, "cid for RT class is -1");
rtLimits.schedPolicy = ClassInfo.pc_cid;
......@@ -3933,7 +3729,7 @@ int lwp_priocntl_init ()
strcpy(ClassInfo.pc_clname, "FX");
ClassInfo.pc_cid = -1;
rslt = (*priocntl_ptr)(PC_VERSION, P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
if (rslt < 0) return errno;
assert(ClassInfo.pc_cid != -1, "cid for FX class is -1");
fxLimits.schedPolicy = ClassInfo.pc_cid;
......@@ -3944,7 +3740,7 @@ int lwp_priocntl_init ()
// This will normally be IA, TS or, rarely, FX or RT.
memset(&ParmInfo, 0, sizeof(ParmInfo));
ParmInfo.pc_cid = PC_CLNULL;
rslt = (*priocntl_ptr) (PC_VERSION, P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo);
rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo);
if (rslt < 0) return errno;
myClass = ParmInfo.pc_cid;
......@@ -3952,7 +3748,7 @@ int lwp_priocntl_init ()
// about the class.
ClassInfo.pc_cid = myClass;
ClassInfo.pc_clname[0] = 0;
rslt = (*priocntl_ptr) (PC_VERSION, (idtype)0, 0, PC_GETCLINFO, (caddr_t)&ClassInfo);
rslt = priocntl((idtype)0, 0, PC_GETCLINFO, (caddr_t)&ClassInfo);
if (rslt < 0) return errno;
if (ThreadPriorityVerbose) {
......@@ -3961,7 +3757,7 @@ int lwp_priocntl_init ()
memset(&ParmInfo, 0, sizeof(pcparms_t));
ParmInfo.pc_cid = PC_CLNULL;
rslt = (*priocntl_ptr)(PC_VERSION, P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo);
rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo);
if (rslt < 0) return errno;
if (ParmInfo.pc_cid == rtLimits.schedPolicy) {
......@@ -4065,7 +3861,7 @@ int set_lwp_class_and_priority(int ThreadID, int lwpid,
memset(&ParmInfo, 0, sizeof(pcparms_t));
ParmInfo.pc_cid = PC_CLNULL;
rslt = (*priocntl_ptr)(PC_VERSION, P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ParmInfo);
rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ParmInfo);
if (rslt < 0) return errno;
int cur_class = ParmInfo.pc_cid;
......@@ -4133,7 +3929,7 @@ int set_lwp_class_and_priority(int ThreadID, int lwpid,
return EINVAL; // no clue, punt
}
rslt = (*priocntl_ptr)(PC_VERSION, P_LWPID, lwpid, PC_SETPARMS, (caddr_t)&ParmInfo);
rslt = priocntl(P_LWPID, lwpid, PC_SETPARMS, (caddr_t)&ParmInfo);
if (ThreadPriorityVerbose && rslt) {
tty->print_cr ("PC_SETPARMS ->%d %d\n", rslt, errno);
}
......@@ -4152,7 +3948,7 @@ int set_lwp_class_and_priority(int ThreadID, int lwpid,
memset(&ReadBack, 0, sizeof(pcparms_t));
ReadBack.pc_cid = PC_CLNULL;
rslt = (*priocntl_ptr)(PC_VERSION, P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ReadBack);
rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ReadBack);
assert(rslt >= 0, "priocntl failed");
Actual = Expected = 0xBAD;
assert(ParmInfo.pc_cid == ReadBack.pc_cid, "cid's don't match");
......@@ -5244,11 +5040,6 @@ uint_t os::Solaris::getisax(uint32_t* array, uint_t n) {
return _getisax(array, n);
}
// Symbol doesn't exist in Solaris 8 pset.h
#ifndef PS_MYID
#define PS_MYID -3
#endif
// int pset_getloadavg(psetid_t pset, double loadavg[], int nelem);
typedef long (*pset_getloadavg_type)(psetid_t pset, double loadavg[], int nelem);
static pset_getloadavg_type pset_getloadavg_ptr = NULL;
......@@ -5418,20 +5209,6 @@ jint os::init_2(void) {
UseNUMA = false;
}
}
// ISM is not compatible with the NUMA allocator - it always allocates
// pages round-robin across the lgroups.
if (UseNUMA && UseLargePages && UseISM) {
if (!FLAG_IS_DEFAULT(UseNUMA)) {
if (FLAG_IS_DEFAULT(UseLargePages) && FLAG_IS_DEFAULT(UseISM)) {
UseLargePages = false;
} else {
warning("UseNUMA is not compatible with ISM large pages, disabling NUMA allocator");
UseNUMA = false;
}
} else {
UseNUMA = false;
}
}
if (!UseNUMA && ForceNUMA) {
UseNUMA = true;
}
......
src/os/solaris/vm/os_solaris.hpp
浏览文件 @ c9aacad9
......@@ -106,8 +106,8 @@ class Solaris {
static meminfo_func_t _meminfo;
// Large Page Support--mpss.
static bool set_mpss_range(caddr_t start, size_t bytes, size_t align);
// Large Page Support
static bool setup_large_pages(caddr_t start, size_t bytes, size_t align);
static void init_thread_fpu_state(void);
......@@ -174,7 +174,6 @@ class Solaris {
static char* mmap_chunk(char *addr, size_t size, int flags, int prot);
static char* anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed);
static bool mpss_sanity_check(bool warn, size_t * page_size);
static bool ism_sanity_check (bool warn, size_t * page_size);
// Workaround for 4352906. thr_stksegment sometimes returns
// a bad value for the primordial thread's stack base when
......
src/share/vm/runtime/arguments.cpp
浏览文件 @ c9aacad9
......@@ -261,6 +261,9 @@ static ObsoleteFlag obsolete_jvm_flags[] = {
{ "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) },
{ "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) },
{ "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) },
{ "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) },
{ "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) },
{ "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) },
#ifdef PRODUCT
{ "DesiredMethodLimit",
JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) },
......@@ -2967,13 +2970,6 @@ jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args,
FLAG_SET_CMDLINE(bool, UseTLAB, true);
} else if (match_option(option, "-XX:-UseTLE", &tail)) {
FLAG_SET_CMDLINE(bool, UseTLAB, false);
SOLARIS_ONLY(
} else if (match_option(option, "-XX:+UsePermISM", &tail)) {
warning("-XX:+UsePermISM is obsolete.");
FLAG_SET_CMDLINE(bool, UseISM, true);
} else if (match_option(option, "-XX:-UsePermISM", &tail)) {
FLAG_SET_CMDLINE(bool, UseISM, false);
)
} else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) {
FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false);
FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true);
......@@ -3146,8 +3142,6 @@ jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_req
// Note that large pages are enabled/disabled for both the
// Java heap and the code cache.
FLAG_SET_DEFAULT(UseLargePages, false);
SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false));
SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false));
}
// Tiered compilation is undefined with C1.
......
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