archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-20 19:14:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8057818: collect allocation context statistics at gc pauses

Browse source 
Reviewed-by: mikael, jmasa
This commit is contained in:
John Coomes 2014-09-10 13:01:13 -07:00
parent 0856ec5961
commit 40155ae18d
5 changed files with 19 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

1
hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp
View file

@ -3334,6 +3334,7 @@ void ConcurrentMark::aggregate_count_data() {
} else {
g1_par_agg_task.work(0);
}
_g1h->allocation_context_stats().update_at_remark();
}
// Clear the per-worker arrays used to store the per-region counting data

7
hotspot/src/share/vm/gc_implementation/g1/g1AllocationContext.hpp
View file

@ -41,4 +41,11 @@ public:
}
};
class AllocationContextStats: public StackObj {
public:
inline void clear() { }
inline void update(bool full_gc) { }
inline void update_at_remark() { }
};
#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCATIONCONTEXT_HPP

3
hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
View file

@ -3596,7 +3596,7 @@ void G1CollectedHeap::gc_prologue(bool full /* Ignored */) {
}
}
void G1CollectedHeap::gc_epilogue(bool full /* Ignored */) {
void G1CollectedHeap::gc_epilogue(bool full) {
if (G1SummarizeRSetStats &&
(G1SummarizeRSetStatsPeriod > 0) &&
@ -3613,6 +3613,7 @@ void G1CollectedHeap::gc_epilogue(bool full /* Ignored */) {
// always_do_update_barrier = true;
resize_all_tlabs();
allocation_context_stats().update(full);
// We have just completed a GC. Update the soft reference
// policy with the new heap occupancy

5
hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
View file

@ -263,6 +263,9 @@ private:
// Class that handles the different kinds of allocations.
G1Allocator* _allocator;
// Statistics for each allocation context
AllocationContextStats _allocation_context_stats;
// PLAB sizing policy for survivors.
PLABStats _survivor_plab_stats;
@ -657,6 +660,8 @@ public:
// Determines PLAB size for a particular allocation purpose.
size_t desired_plab_sz(GCAllocPurpose purpose);
inline AllocationContextStats& allocation_context_stats();
// Do anything common to GC's.
virtual void gc_prologue(bool full);
virtual void gc_epilogue(bool full);

4
hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp
View file

@ -37,6 +37,10 @@
// Inline functions for G1CollectedHeap
inline AllocationContextStats& G1CollectedHeap::allocation_context_stats() {
return _allocation_context_stats;
}
// Return the region with the given index. It assumes the index is valid.
inline HeapRegion* G1CollectedHeap::region_at(uint index) const { return _hrm.at(index); }