8086111: BACKOUT - metaspace/shrink_grow/CompressedClassSpaceSize fails with OOM: Compressed class space
Reviewed-by: brutisso

Summary: metaspace/shrink_grow/CompressedClassSpaceSize fails with OOM: Compressed class space
Reviewed-by: jmasa, kbarrett

Summary: Estimate the size of shared archive based on the number of classes in the classlist file
Reviewed-by: iklam, jiangli, minqi, dholmes

Summary: Cleaned up CDS to be more configurable, maintainable and extensible
Reviewed-by: dholmes, coleenp, acorn, mchung

8038268: VM Crashes in MetaspaceShared::generate_vtable_methods while creating CDS archive with limiting SharedMiscCodeSize
Summary: estimate the minimum required size for the misc code region and check if the specified misc code region size meets the minimum size requirement
Reviewed-by: jiangli, dholmes

Reviewed-by: stefank, jmasa

8038422: CDS test failed: assert((size % os::vm_allocation_granularity()) == 0) failed when limiting SharedMiscDataSize
Summary: In debug version, the assert is against os::vm_allocation_granularity(), but in initialization, we use os::vm_page_size() to align the allocation size. In windows, _vm_page_size and _vm_allocation_granularity may not be same. In debug version, the assert is against os::vm_allocation_granularity(), but in initialization, we use os::vm_page_size() to align the allocation size. In windows, _vm_page_size and _vm_allocation_granularity may not be same.
Reviewed-by: dholmes, iklam, jiangli, coleenp
Contributed-by: yumin.qi@oracle.com

8043029: Change 8037816 breaks HS build with older GCC versions which don't support diagnostic pragmas
8043164: Format warning in traceStream.hpp
Summary: Backport of main fix + two corrections, enables clang compilation, turns on format attributes, corrects/mutes warnings
Reviewed-by: kvn, coleenp, iveresov, twisti

Summary: Only prune metaspace virtual spaces at safepoint so walking them is safe outside a safepoint.
Reviewed-by: mgerdin, mgronlun, hseigel, stefank

Reviewed-by: jmasa, stefank

Reviewed-by: jmasa, coleenp

Reviewed-by: mgerdin, jmasa
Contributed-by: matthias.baesken@sap.com

Reviewed-by: stefank, mgerdin, coleenp, egahlin

Reviewed-by: stefank, mgerdin

Reviewed-by: jmasa, stefank

Reviewed-by: stefank, mgerdin

Reviewed-by: dholmes, kvn, stefank, twisti

Summary: Metaspace::contains cannot look at purged metaspaces while CMS concurrently deallocates them.
Reviewed-by: mgerdin, sspitsyn, jmasa

8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1)
Summary: Fixed overflow bug in VirtualSpaceNode::is_available
Reviewed-by: mgerdin, brutisso, coleenp, jmasa

Summary: Should compare bounds greater than or equal 4G when deciding if shift is needed or CDS area + compressed class space are within 4G of each other.
Reviewed-by: stefank, hseigel, zgu

Summary: Allocate compressed class space at end of Java heap.  For small heap sizes, without CDS, save some space so compressed classes can have the same favorable compression as oops
Reviewed-by: stefank, hseigel, goetz

8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space
Summary: Incorporate chunk size when seeing if OutOfMemoryError was caused by Metaspace or Compressed class space.
Reviewed-by: stefank, coleenp

Summary: Moved restricted_align_down to globalDefinitions and renamed it align_size_down_bounded
Reviewed-by: stefank, mgerdin, tschatzl

Reviewed-by: stefank, jwilhelm

Reviewed-by: coleenp, mgerdin

Reviewed-by: coleenp, jmasa

Summary: Chunk up the last piece of committed memory in a VSN when getting a new one.
Reviewed-by: stefank, jmasa

Reviewed-by: coleenp, ehelin

Reviewed-by: brutisso, jmasa, coleenp

Reviewed-by: mgerdin, tschatzl, jmasa

Summary: Only put "Compressed class space" as OOM cause if actually using Compressed class space
Reviewed-by: jwilhelm, stefank, ehelin, coleenp

Reviewed-by: coleenp, mgerdin, jmasa

Reviewed-by: coleenp, brutisso, mgerdin, jmasa

Reviewed-by: brutisso, mgerdin, coleenp

Reviewed-by: jmasa, brutisso

Reviewed-by: brutisso, mgerdin, coleenp, jmasa

Reviewed-by: brutisso, ehelin

Reviewed-by: stefank, hseigel, mgerdin

Summary: Use best-fit block-splitting freelist allocation from the block freelist.
Reviewed-by: jmasa, stefank

Summary: Replace the broken large pages implementation on Linux. New flag: -XX:+UseTransparentHugePages - Linux specific flag to turn on transparent huge page hinting with madvise(..., MAP_HUGETLB). Changed behavior: -XX:+UseLargePages - tries to use -XX:+UseTransparentHugePages before trying other large pages implementations (on Linux). Changed behavior: -XX:+UseHugeTLBFS - Use upfront allocation of Large Pages instead of using the broken implementation to dynamically committing large pages. Changed behavior: -XX:LargePageSizeInBytes - Turned off the ability to use this flag on Linux and provides warning to user if set to a value different than the OS chosen large page size. Changed behavior: Setting no large page size - Now defaults to use -XX:UseTransparentHugePages if the OS supports it. Previously, -XX:+UseHugeTLBFS was chosen if the OS was configured to use large pages.
Reviewed-by: tschatzl, dcubed, brutisso