JDK-6716466 : par compact - remove VerifyParallelOldWithMarkSweep code
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 5.0u6
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2008-06-19
  • Updated: 2010-04-02
  • Resolved: 2010-01-13
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JDK 6 JDK 7 Other
6u14Fixed 7Fixed hs14Fixed
-XX:+VerifyParallelOldWithMarkSweep enables code that uses a serial mark sweep gc to verify the collection done by parallel compaction.  It was useful during initial development, but at best it worked for a single collection and generated false positives because of reference processing.  It's now out of date and should be removed.

EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/a4b729f5b611

SUGGESTED FIX Attached as patch.rmvfy.

EVALUATION Yes, it should be removed.