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diff src/share/vm/memory/collectorPolicy.cpp @ 7451:ca0a78017dc7

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8005396: Use ParNew with only one thread instead of DefNew as default for CMS on single CPU machines Reviewed-by: jmasa, jcoomes
author brutisso
date Sun, 30 Dec 2012 08:47:52 +0100
parents e51c9860cf66
children db9981fd3124 95ccff9eee8e
line wrap: on
line diff
--- a/src/share/vm/memory/collectorPolicy.cpp	Thu Jan 03 16:28:22 2013 -0800
+++ b/src/share/vm/memory/collectorPolicy.cpp	Sun Dec 30 08:47:52 2012 +0100
@@ -827,7 +827,7 @@
   if (_generations == NULL)
     vm_exit_during_initialization("Unable to allocate gen spec");
 
-  if (UseParNewGC && ParallelGCThreads > 0) {
+  if (UseParNewGC) {
     _generations[0] = new GenerationSpec(Generation::ParNew, _initial_gen0_size, _max_gen0_size);
   } else {
     _generations[0] = new GenerationSpec(Generation::DefNew, _initial_gen0_size, _max_gen0_size);
@@ -840,10 +840,9 @@
 
 void MarkSweepPolicy::initialize_gc_policy_counters() {
   // initialize the policy counters - 2 collectors, 3 generations
-  if (UseParNewGC && ParallelGCThreads > 0) {
+  if (UseParNewGC) {
     _gc_policy_counters = new GCPolicyCounters("ParNew:MSC", 2, 3);
-  }
-  else {
+  } else {
     _gc_policy_counters = new GCPolicyCounters("Copy:MSC", 2, 3);
   }
 }