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diff src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp @ 1391:79e419e5ea3b

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6942253: G1: replace G1ParallelGCAllocBufferSize with YoungPLABSize and OldPLABSize Summary: Replaces the G1-specific parameter with the existing ones that are used by the other GCs (YoungPLABSize and OldPLABSize) Reviewed-by: tonyp, johnc
author apetrusenko
date Fri, 16 Apr 2010 08:48:16 -0700
parents f9ec1e4bbb44
children 1316cec51b4d
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Thu Apr 15 18:45:30 2010 -0400
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Fri Apr 16 08:48:16 2010 -0700
@@ -2946,6 +2946,25 @@
   }
 }
 
+size_t G1CollectedHeap::desired_plab_sz(GCAllocPurpose purpose)
+{
+  size_t gclab_word_size;
+  switch (purpose) {
+    case GCAllocForSurvived:
+      gclab_word_size = YoungPLABSize;
+      break;
+    case GCAllocForTenured:
+      gclab_word_size = OldPLABSize;
+      break;
+    default:
+      assert(false, "unknown GCAllocPurpose");
+      gclab_word_size = OldPLABSize;
+      break;
+  }
+  return gclab_word_size;
+}
+
+
 void G1CollectedHeap::set_gc_alloc_region(int purpose, HeapRegion* r) {
   assert(purpose >= 0 && purpose < GCAllocPurposeCount, "invalid purpose");
   // make sure we don't call set_gc_alloc_region() multiple times on
@@ -3680,6 +3699,8 @@
     _g1_rem(g1h->g1_rem_set()),
     _hash_seed(17), _queue_num(queue_num),
     _term_attempts(0),
+    _surviving_alloc_buffer(g1h->desired_plab_sz(GCAllocForSurvived)),
+    _tenured_alloc_buffer(g1h->desired_plab_sz(GCAllocForTenured)),
     _age_table(false),
 #if G1_DETAILED_STATS
     _pushes(0), _pops(0), _steals(0),
@@ -3706,6 +3727,9 @@
 
   _overflowed_refs = new OverflowQueue(10);
 
+  _alloc_buffers[GCAllocForSurvived] = &_surviving_alloc_buffer;
+  _alloc_buffers[GCAllocForTenured]  = &_tenured_alloc_buffer;
+
   _start = os::elapsedTime();
 }