Mercurial > hg > truffle
comparison src/share/vm/runtime/globals.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 |
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date | Fri, 16 Aug 2013 13:22:32 +0200 |
parents | 740e263c80c6 |
children | d80493ee6430 e2722a66aba7 |
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12108:badf4244ceae | 12110:4c84d351cca9 |
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1931 "Trace virtual space metadata allocations") \ | 1931 "Trace virtual space metadata allocations") \ |
1932 \ | 1932 \ |
1933 notproduct(bool, ExecuteInternalVMTests, false, \ | 1933 notproduct(bool, ExecuteInternalVMTests, false, \ |
1934 "Enable execution of internal VM tests.") \ | 1934 "Enable execution of internal VM tests.") \ |
1935 \ | 1935 \ |
1936 notproduct(bool, VerboseInternalVMTests, false, \ | |
1937 "Turn on logging for internal VM tests.") \ | |
1938 \ | |
1936 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ | 1939 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
1937 \ | 1940 \ |
1938 product_pd(bool, ResizeTLAB, \ | 1941 product_pd(bool, ResizeTLAB, \ |
1939 "Dynamically resize tlab size for threads") \ | 1942 "Dynamically resize tlab size for threads") \ |
1940 \ | 1943 \ |