JDK-6979279 : remove special-case code for ParallelGCThreads==0
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs19
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2010-08-23
  • Updated: 2015-06-03
  • Resolved: 2014-10-21
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JDK 9
9 b38Fixed
Related Reports
Relates :  
JDK-8059527 - Disallow ParallelGCThreads=0 for G1
Description
The CMS, ParNew and G1 collectors have special case code that is executed only when ParallelGCThreads==0.  This code is not tested regularly and should be removed.
Comments
Even if ParallelGCThreads is manually set to 0, the option should show the actual value in -XX:+PrintFlagsFinal
25-09-2014
EVALUATION In addition to removing code executed only when ParallelGCThreads==0, argument processing should be changed to ensure that ParallelGCThreads >= 1 when a collector capable of parallelism is active.
23-08-2010