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diff src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp @ 453:c96030fff130

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6684579: SoftReference processing can be made more efficient Summary: For current soft-ref clearing policies, we can decide at marking time if a soft-reference will definitely not be cleared, postponing the decision of whether it will definitely be cleared to the final reference processing phase. This can be especially beneficial in the case of concurrent collectors where the marking is usually concurrent but reference processing is usually not. Reviewed-by: jmasa
author ysr
date Thu, 20 Nov 2008 16:56:09 -0800
parents 078b8a0d8d7c
children 27a80744a83b
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Thu Nov 20 12:27:41 2008 -0800
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Thu Nov 20 16:56:09 2008 -0800
@@ -891,6 +891,7 @@
     ReferenceProcessorIsAliveMutator rp_is_alive_null(ref_processor(), NULL);
 
     ref_processor()->enable_discovery();
+    ref_processor()->snap_policy(clear_all_soft_refs);
 
     // Do collection work
     {
@@ -2463,7 +2464,7 @@
 
     COMPILER2_PRESENT(DerivedPointerTable::clear());
 
-    // We want to turn off ref discovere, if necessary, and turn it back on
+    // We want to turn off ref discovery, if necessary, and turn it back on
     // on again later if we do.
     bool was_enabled = ref_processor()->discovery_enabled();
     if (was_enabled) ref_processor()->disable_discovery();