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diff src/share/vm/memory/generation.cpp @ 2369:92da084fefc9

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6668573: CMS: reference processing crash if ParallelCMSThreads > ParallelGCThreads Summary: Use _max_num_q = max(discovery_degree, processing_degree), and let balance_queues() redistribute from discovery_degree to processing_degree of queues. This should also allow a more dynamic and flexible parallelism policy in the future. Reviewed-by: jmasa, johnc
author ysr
date Thu, 17 Mar 2011 10:32:46 -0700
parents f95d63e2154a
children b632e80fc9dc
line wrap: on
line diff
--- a/src/share/vm/memory/generation.cpp	Wed Mar 16 10:37:08 2011 -0700
+++ b/src/share/vm/memory/generation.cpp	Thu Mar 17 10:32:46 2011 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -83,14 +83,11 @@
 }
 
 // By default we get a single threaded default reference processor;
-// generations needing multi-threaded refs discovery override this method.
+// generations needing multi-threaded refs processing or discovery override this method.
 void Generation::ref_processor_init() {
   assert(_ref_processor == NULL, "a reference processor already exists");
   assert(!_reserved.is_empty(), "empty generation?");
-  _ref_processor =
-    new ReferenceProcessor(_reserved,                  // span
-                           refs_discovery_is_atomic(), // atomic_discovery
-                           refs_discovery_is_mt());    // mt_discovery
+  _ref_processor = new ReferenceProcessor(_reserved);    // a vanilla reference processor
   if (_ref_processor == NULL) {
     vm_exit_during_initialization("Could not allocate ReferenceProcessor object");
   }