Mercurial > hg > truffle
diff src/share/vm/services/memTracker.hpp @ 12110:4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
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
author | stefank |
---|---|
date | Fri, 16 Aug 2013 13:22:32 +0200 |
parents | 5f7a4367c787 |
children | 833b0f92429a |
line wrap: on
line diff
--- a/src/share/vm/services/memTracker.hpp Sun Aug 25 21:21:18 2013 -0400 +++ b/src/share/vm/services/memTracker.hpp Fri Aug 16 13:22:32 2013 +0200 @@ -87,6 +87,8 @@ MEMFLAGS flags, address pc = 0, Thread* thread = NULL) { } static inline void record_virtual_memory_commit(address addr, size_t size, address pc = 0, Thread* thread = NULL) { } + static inline void record_virtual_memory_release(address addr, size_t size, + Thread* thread = NULL) { } static inline void record_virtual_memory_type(address base, MEMFLAGS flags, Thread* thread = NULL) { } static inline Tracker get_realloc_tracker() { return _tkr; } @@ -372,6 +374,13 @@ tkr.record(addr, size, flags, pc); } + static inline void record_virtual_memory_release(address addr, size_t size, + Thread* thread = NULL) { + if (is_on()) { + Tracker tkr(Tracker::Release, thread); + tkr.record(addr, size); + } + } // record memory type on virtual memory base address static inline void record_virtual_memory_type(address base, MEMFLAGS flags,