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6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb

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Added new product ObjectAlignmentInBytes flag to control object alignment.

Reviewed-by: twisti, ysr, iveresov
This commit is contained in:
Vladimir Kozlov 2010-05-27 18:01:56 -07:00
parent 05b4f2e796
commit cc18a50e59
29 changed files with 222 additions and 136 deletions
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10
hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
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@ -2523,14 +2523,14 @@ record_concurrent_mark_cleanup_end(size_t freed_bytes,
}
if (ParallelGCThreads > 0) {
const size_t OverpartitionFactor = 4;
const size_t MinChunkSize = 8;
const size_t ChunkSize =
const size_t MinWorkUnit = 8;
const size_t WorkUnit =
MAX2(_g1->n_regions() / (ParallelGCThreads * OverpartitionFactor),
MinChunkSize);
MinWorkUnit);
_collectionSetChooser->prepareForAddMarkedHeapRegionsPar(_g1->n_regions(),
ChunkSize);
WorkUnit);
ParKnownGarbageTask parKnownGarbageTask(_collectionSetChooser,
(int) ChunkSize);
(int) WorkUnit);
_g1->workers()->run_task(&parKnownGarbageTask);
assert(_g1->check_heap_region_claim_values(HeapRegion::InitialClaimValue),