Mercurial > hg > graal-jvmci-8
comparison src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp @ 1571:2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
Summary: Added new product ObjectAlignmentInBytes flag to control object alignment.
Reviewed-by: twisti, ysr, iveresov
author | kvn |
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date | Thu, 27 May 2010 18:01:56 -0700 |
parents | 1316cec51b4d |
children | e9ff18c4ace7 |
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1570:de91a2f25c7e | 1571:2d127394260e |
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2521 gclog_or_tty->print_cr(" clear marked regions + work1: %8.3f ms.", | 2521 gclog_or_tty->print_cr(" clear marked regions + work1: %8.3f ms.", |
2522 (clear_marked_end - start)*1000.0); | 2522 (clear_marked_end - start)*1000.0); |
2523 } | 2523 } |
2524 if (ParallelGCThreads > 0) { | 2524 if (ParallelGCThreads > 0) { |
2525 const size_t OverpartitionFactor = 4; | 2525 const size_t OverpartitionFactor = 4; |
2526 const size_t MinChunkSize = 8; | 2526 const size_t MinWorkUnit = 8; |
2527 const size_t ChunkSize = | 2527 const size_t WorkUnit = |
2528 MAX2(_g1->n_regions() / (ParallelGCThreads * OverpartitionFactor), | 2528 MAX2(_g1->n_regions() / (ParallelGCThreads * OverpartitionFactor), |
2529 MinChunkSize); | 2529 MinWorkUnit); |
2530 _collectionSetChooser->prepareForAddMarkedHeapRegionsPar(_g1->n_regions(), | 2530 _collectionSetChooser->prepareForAddMarkedHeapRegionsPar(_g1->n_regions(), |
2531 ChunkSize); | 2531 WorkUnit); |
2532 ParKnownGarbageTask parKnownGarbageTask(_collectionSetChooser, | 2532 ParKnownGarbageTask parKnownGarbageTask(_collectionSetChooser, |
2533 (int) ChunkSize); | 2533 (int) WorkUnit); |
2534 _g1->workers()->run_task(&parKnownGarbageTask); | 2534 _g1->workers()->run_task(&parKnownGarbageTask); |
2535 | 2535 |
2536 assert(_g1->check_heap_region_claim_values(HeapRegion::InitialClaimValue), | 2536 assert(_g1->check_heap_region_claim_values(HeapRegion::InitialClaimValue), |
2537 "sanity check"); | 2537 "sanity check"); |
2538 } else { | 2538 } else { |