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6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit

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Ensure a full GC that clears SoftReferences before throwing an out-of-memory

Reviewed-by: ysr, jcoomes
This commit is contained in:
Jon Masamitsu 2010-04-13 13:52:10 -07:00
parent ba815bf09e
commit f5197d0d36
26 changed files with 543 additions and 364 deletions
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14
hotspot/src/share/vm/gc_implementation/parallelScavenge/psGCAdaptivePolicyCounters.hpp
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@ -1,5 +1,5 @@
/*
* Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 2003-2010 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -44,8 +44,8 @@ class PSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters {
PerfVariable* _live_space;
PerfVariable* _free_space;
PerfVariable* _avg_base_footprint;
PerfVariable* _gc_time_limit_exceeded;
PerfVariable* _live_at_last_full_gc;
PerfVariable* _gc_overhead_limit_exceeded_counter;
PerfVariable* _live_at_last_full_gc_counter;
PerfVariable* _old_capacity;
PerfVariable* _boundary_moved;
@ -169,6 +169,14 @@ class PSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters {
(jlong)(ps_size_policy()->major_pause_young_slope() * 1000)
);
}
inline void update_gc_overhead_limit_exceeded_counter() {
_gc_overhead_limit_exceeded_counter->set_value(
(jlong) ps_size_policy()->gc_overhead_limit_exceeded());
}
inline void update_live_at_last_full_gc_counter() {
_live_at_last_full_gc_counter->set_value(
(jlong)(ps_size_policy()->live_at_last_full_gc()));
}
inline void update_scavenge_skipped(int cause) {
_scavenge_skipped->set_value(cause);