Mercurial > hg > graal-compiler
diff src/share/vm/services/memoryManager.hpp @ 1703:f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
Summary: Management code enabled for use by a concurrent collector.
Reviewed-by: mchung, ysr
author | kevinw |
---|---|
date | Fri, 30 Jul 2010 22:43:50 +0100 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
line wrap: on
line diff
--- a/src/share/vm/services/memoryManager.hpp Thu Jun 10 08:27:35 2010 -0700 +++ b/src/share/vm/services/memoryManager.hpp Fri Jul 30 22:43:50 2010 +0100 @@ -131,6 +131,9 @@ return _after_gc_usage_array[pool_index]; } + MemoryUsage* before_gc_usage_array() { return _before_gc_usage_array; } + MemoryUsage* after_gc_usage_array() { return _after_gc_usage_array; } + void set_index(size_t index) { _index = index; } void set_start_time(jlong time) { _start_time = time; } void set_end_time(jlong time) { _end_time = time; } @@ -143,7 +146,7 @@ set_gc_usage(pool_index, usage, false /* after gc */); } - void copy_stat(GCStatInfo* stat); + void clear(); }; class GCMemoryManager : public MemoryManager { @@ -153,6 +156,8 @@ elapsedTimer _accumulated_timer; elapsedTimer _gc_timer; // for measuring every GC duration GCStatInfo* _last_gc_stat; + Mutex* _last_gc_lock; + GCStatInfo* _current_gc_stat; int _num_gc_threads; public: GCMemoryManager(); @@ -166,11 +171,16 @@ int num_gc_threads() { return _num_gc_threads; } void set_num_gc_threads(int count) { _num_gc_threads = count; } - void gc_begin(); - void gc_end(); + void gc_begin(bool recordGCBeginTime, bool recordPreGCUsage, + bool recordAccumulatedGCTime); + void gc_end(bool recordPostGCUsage, bool recordAccumulatedGCTime, + bool recordGCEndTime, bool countCollection); void reset_gc_stat() { _num_collections = 0; _accumulated_timer.reset(); } - GCStatInfo* last_gc_stat() { return _last_gc_stat; } + + // Copy out _last_gc_stat to the given destination, returning + // the collection count. Zero signifies no gc has taken place. + size_t get_last_gc_stat(GCStatInfo* dest); virtual MemoryManager::Name kind() = 0; };