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4957990: Perm heap bloat in JVM

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Treat ProfileData in MDO's as a source of weak, not strong, roots. Fixes the bug for stop-world collection -- the case of concurrent collection will be fixed separately.

Reviewed-by: jcoomes, jmasa, kvn, never
This commit is contained in:
Y. Srinivas Ramakrishna 2009-09-02 00:04:29 -07:00
parent 2491751525
commit c6763b5bad
27 changed files with 385 additions and 65 deletions
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hotspot/src/share/vm/gc_implementation/parallelScavenge/psCompactionManager.hpp
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@ -93,6 +93,7 @@ class ParCompactionManager : public CHeapObj {
#if 1 // does this happen enough to need a per thread stack?
GrowableArray<Klass*>* _revisit_klass_stack;
GrowableArray<DataLayout*>* _revisit_mdo_stack;
#endif
static ParMarkBitMap* _mark_bitmap;
@ -154,6 +155,7 @@ class ParCompactionManager : public CHeapObj {
#if 1
// Probably stays as a growable array
GrowableArray<Klass*>* revisit_klass_stack() { return _revisit_klass_stack; }
GrowableArray<DataLayout*>* revisit_mdo_stack() { return _revisit_mdo_stack; }
#endif
// Save oop for later processing. Must not fail.