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8055098: WB API should be extended to provide information about size and age of object

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Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC.

Reviewed-by: tschatzl, sjohanss
This commit is contained in:
Leonid Mesnik 2014-08-21 16:44:41 +02:00 • committed by Thomas Schatzl
parent ad89797fbd
commit 6715fc0bed
7 changed files with 52 additions and 9 deletions
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hotspot/src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp
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@ -70,7 +70,7 @@ void VM_ParallelGCSystemGC::doit() {
"must be a ParallelScavengeHeap");
GCCauseSetter gccs(heap, _gc_cause);
if (_gc_cause == GCCause::_gc_locker
if (_gc_cause == GCCause::_gc_locker || _gc_cause == GCCause::_wb_young_gc
DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {
// If (and only if) the scavenge fails, this will invoke a full gc.
heap->invoke_scavenge();