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diff src/share/vm/gc_implementation/parallelScavenge/psMarkSweepDecorator.cpp @ 4091:d06a2d7fcd5b

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7110718: -XX:MarkSweepAlwaysCompactCount=0 crashes the JVM Summary: Interpret MarkSweepAlwaysCompactCount < 1 as never do full compaction Reviewed-by: ysr, tonyp, jmasa, johnc
author brutisso
date Mon, 21 Nov 2011 07:47:34 +0100
parents f95d63e2154a
children da91efe96a93
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line diff
--- a/src/share/vm/gc_implementation/parallelScavenge/psMarkSweepDecorator.cpp	Fri Nov 18 12:52:27 2011 -0500
+++ b/src/share/vm/gc_implementation/parallelScavenge/psMarkSweepDecorator.cpp	Mon Nov 21 07:47:34 2011 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 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
@@ -96,7 +96,8 @@
    * by the MarkSweepAlwaysCompactCount parameter. This is a significant
    * performance improvement!
    */
-  bool skip_dead = ((PSMarkSweep::total_invocations() % MarkSweepAlwaysCompactCount) != 0);
+  bool skip_dead = (MarkSweepAlwaysCompactCount < 1)
+    || ((PSMarkSweep::total_invocations() % MarkSweepAlwaysCompactCount) != 0);
 
   size_t allowed_deadspace = 0;
   if (skip_dead) {