- 29 4月, 2011 1 次提交
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由 brutisso 提交于
Summary: BlockOffsetArrayUseUnallocatedBlock was intended to be turned off as part of BUG 6948538 but a code line in collectorPolicy.cpp actually kept it turned on. Reviewed-by: jwilhelm, ysr
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- 30 4月, 2011 1 次提交
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由 tonyp 提交于
7035144: G1: nightly failure: Non-dirty cards in region that should be dirty (failures still exist...) Summary: We should only undirty cards after we decide that they are not on a young region, not before. The fix also includes improvements to the verify_dirty_region() method which print out which cards were not found dirty. Reviewed-by: johnc, brutisso
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- 27 4月, 2011 2 次提交
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由 zgu 提交于
Summary: Created new "new" operator for CHeapObj that allows malloc to fail without causing fatal error. Also replaced "HeapAllocate" with "os::malloc" in decoder code to allow decoder to handle low memory scenario. Reviewed-by: coleenp, dholmes
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由 ysr 提交于
Summary: In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap. Reviewed-by: iveresov, jmasa, tonyp
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- 21 4月, 2011 1 次提交
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由 ysr 提交于
Summary: Short-circuited an unnecessary double traversal of dirty card windows when iterating younger refs. Also renamed some cardtable methods for more clarity. Reviewed-by: jmasa, stefank, poonam
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- 18 4月, 2011 1 次提交
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由 twisti 提交于
Reviewed-by: kvn, jrose
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- 15 4月, 2011 2 次提交
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由 coleenp 提交于
Summary: Make CDS reorder vtables so that dump time vtables match run time order, so when redefine classes reinitializes them, they aren't in the wrong order. Reviewed-by: dcubed, acorn
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由 ysr 提交于
Summary: Removed the unused clear argument to various cardtbale methods and unused mod_oop_in_space_iterate method. Unrelated to synopsis, added a pair of clarifying parens in AllocationStats constructor. Reviewed-by: brutisso, jcoomes
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- 06 4月, 2011 1 次提交
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由 trims 提交于
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass Summary: Update the copyright to be 2010 on all changed files in OpenJDK Reviewed-by: ohair
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- 01 4月, 2011 1 次提交
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由 never 提交于
Reviewed-by: kvn, kamg, jcoomes
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- 23 3月, 2011 1 次提交
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由 jcoomes 提交于
Reviewed-by: never, coleenp, ysr, jwilhelm
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- 19 3月, 2011 2 次提交
- 18 3月, 2011 1 次提交
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由 ysr 提交于
Summary: Use _max_num_q = max(discovery_degree, processing_degree), and let balance_queues() redistribute from discovery_degree to processing_degree of queues. This should also allow a more dynamic and flexible parallelism policy in the future. Reviewed-by: jmasa, johnc
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- 17 3月, 2011 1 次提交
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由 ysr 提交于
6627787: CMS: JVM refuses to start up with -Xms16m -Xmx16m 7000125: CMS: Anti-monotone young gen sizing with respect to maximum whole heap size specification 7027529: CMS: retire CMSUseOldDefaults flag Summary: Simplify CMS heap sizing code, relying on ergonomic initial sizing consistent with other collectors for the most part, controlling only young gen sizing to rein in pause times. Make CMS young gen sizing default statically cpu-dependant. Remove inconsistencies wrt generation sizing and policy code, allowing for the fixing for 6627787 and 7000125. For 7027529, retire the flag CMSUseOldDefaults which had been introduced as a bridge from JDK 5 to JDK 6 a number of years ago. Reviewed-by: brutisso, poonam
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- 10 3月, 2011 1 次提交
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由 kvn 提交于
Summary: Use largest_free_block() instead of unallocated_capacity(). Reviewed-by: iveresov, never, ysr
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- 02 3月, 2011 2 次提交
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由 kamg 提交于
Summary: Added overflow detection in arena Amalloc methods Reviewed-by: coleenp, phh
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由 iveresov 提交于
Summary: Bulk zeroing reduction didn't work with G1, because arraycopy would call pre-barriers on uninitialized oops. The solution is to have version of arraycopy stubs that don't have pre-barriers. Also refactored arraycopy stubs generation on SPARC to be more readable and reduced the number of stubs necessary in some cases. Reviewed-by: jrose, kvn, never
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- 21 2月, 2011 1 次提交
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由 stefank 提交于
Summary: Allocate ordinary object arrays Reviewed-by: ysr, never, mchung
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- 30 3月, 2011 1 次提交
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由 tonyp 提交于
7023151: G1: refactor the code that operates on _cur_alloc_region to be re-used for allocs by the GC threads 7018286: G1: humongous allocation attempts should take the GC locker into account Summary: First, this change replaces the asymmetric locking scheme in the G1 slow alloc path by a summetric one. Second, it factors out the code that operates on _cur_alloc_region so that it can be re-used for allocations by the GC threads in the future. Reviewed-by: stefank, brutisso, johnc
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- 25 3月, 2011 1 次提交
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由 ysr 提交于
7029036: Card-table verification hangs with all framework collectors, except G1, even before the first GC Summary: When verifying clean card ranges, use memory-range-bounded iteration over oops of objects overlapping that range, thus avoiding the otherwise quadratic worst-case cost of scanning large object arrays. Reviewed-by: jmasa, jwilhelm, tonyp
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- 11 2月, 2011 2 次提交
- 08 2月, 2011 2 次提交
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由 ysr 提交于
Summary: Fix block_size_if_printezis_bits() so it does not expect the bits, only uses them when available. Fix block_size_no_stall() so it does not stall when the bits are missing such cases, letting the caller deal with zero size returns. Constant pool cache oops do not need to be unparsable or conc_unsafe after their klass pointer is installed. Some cosmetic clean-ups and some assertion checking for conc-usafety which, in the presence of class file redefinition, has no a-priori time boundedness, so all GCs must be able to safely deal with putatively conc-unsafe objects in a stop-world pause. Reviewed-by: jmasa, johnc
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由 kvn 提交于
Summary: Added new method inc_stat_counter() to increment long statistic values and use atomic long load and store. Reviewed-by: dholmes, jrose, phh, never
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- 28 1月, 2011 1 次提交
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由 coleenp 提交于
Summary: move symbols from permgen into C heap and reference count them Reviewed-by: never, acorn, jmasa, stefank
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- 20 1月, 2011 1 次提交
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由 kamg 提交于
Summary: Rebuild breakpoint cache at gc_epilogue instead of during oops_do Reviewed-by: dcubed, ysr, coleenp
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- 07 1月, 2011 1 次提交
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由 phh 提交于
Summary: Track allocated bytes in Thread's, update on TLAB retirement and direct allocation in Eden and tenured, add JNI methods for ThreadMXBean. Reviewed-by: coleenp, kvn, dholmes, ysr
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- 30 12月, 2010 1 次提交
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由 kvn 提交于
Summary: remove clear_scratch_buffer_blob and let init_scratch_buffer_blob free and allocate a new blob if required. Reviewed-by: twisti
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- 18 12月, 2010 1 次提交
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由 ysr 提交于
Summary: Age bits need not enter the mark-word preservation calculus; also affected, in addition to CMS, per CR synopsis above, were ParNew (but not DefNew), ParallelScavenge and G1, albeit to a lesser degree than CMS. Reviewed-by: tonyp, johnc
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- 17 12月, 2010 1 次提交
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由 kvn 提交于
Summary: read Solaris kstat data to get more precise CPU information Reviewed-by: iveresov, never, twisti, dholmes
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- 11 12月, 2010 1 次提交
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由 kvn 提交于
Summary: add another ResourceObj debug field to distinguish garbage Reviewed-by: dholmes, coleenp
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- 10 12月, 2010 1 次提交
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由 ysr 提交于
Summary: Relaxed the assert by allowing NULL referents when discovery may be concurrent. Reviewed-by: johnc, jcoomes
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- 08 12月, 2010 1 次提交
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由 ysr 提交于
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed()) 7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages. Reviewed-by: johnc, tonyp
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- 02 12月, 2010 1 次提交
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由 johnc 提交于
Summary: Enable reference discovery during concurrent marking by setting the reference processor field of the concurrent marking closure. Keep reference objects on the discovered reference lists alive during incremental evacuation pauses until they are processed at the end of concurrent marking. Reviewed-by: ysr, tonyp
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- 01 12月, 2010 1 次提交
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由 stefank 提交于
Summary: Added an ifndef DONT_USE_PRECOMPILED_HEADER to precompiled.hpp. Set up DONT_USE_PRECOMPILED_HEADER when compiling with Sun Studio or when the user specifies USE_PRECOMPILED_HEADER=0. Fixed broken include dependencies. Reviewed-by: coleenp, kvn
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- 02 12月, 2010 1 次提交
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由 ikrylov 提交于
Summary: move functions from hpi library to hotspot, communicate with licensees and open source community, check jdk for dependency, file CCC request Reviewed-by: coleenp, acorn, dsamersoff
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- 24 11月, 2010 1 次提交
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由 stefank 提交于
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
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- 17 11月, 2010 1 次提交
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由 ysr 提交于
Summary: Weakened assert in onj_is_alive() to allow its use at initialization time when is_at_safepoint() normally reports false; added some related asserts to check order of is_init_completed() after Universe::is_fully_initialized(). Reviewed-by: jcoomes
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- 13 11月, 2010 1 次提交
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由 kvn 提交于
Summary: HeapBaseMinAddress should be used only for a default heap size calculation. Reviewed-by: iveresov, jcoomes, dholmes
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