JDK-6553444 : Add lock site specific accounting to server compiler
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 5.0
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: solaris_9
  • CPU: sparc
  • Submitted: 2007-05-03
  • Updated: 2010-04-02
  • Resolved: 2007-05-24
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JDK 6 JDK 7 Other
6u4Fixed 7Fixed hs10Fixed
Description
Add lock site specific accounting to server compiler.

-XX:+PrintPreciseBiasedLockingStatistics

Example:

java/lang/StringBuffer.append@0 spec/io/ValidityCheckOutputStream.strip1@6
# total entries: 1751
# biased lock entries: 1510
# anonymously biased lock entries: 241
# rebiased lock entries: 0
# revoked lock entries: 0
# fast path lock entries: 0
# slow path lock entries: 0

Comments
SUGGESTED FIX http://prt-web.sfbay.sun.com/net/prt-archiver.sfbay/data/archived_workspaces/main/c2_baseline/2007/20070508093142.nips.counters/workspace/webrevs/webrev-2007.05.08/index.html Archived data: /net/prt-archiver.sfbay/data/archived_workspaces/main/c2_baseline/2007/20070508093142.nips.counters/
2007-05-08

EVALUATION See Description
2007-05-03