JDK-8029361 : Stress bpm sq:performance is slow with g1gc - not freeing regions correctly
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs24,hs25
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2013-11-29
  • Updated: 2014-11-25
  • Resolved: 2014-11-25
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JDK 9
9Fixed
Related Reports
Relates :  
JDK-8040120 - Long delays during GC pause in G1 in some situations
Description
 
SHORT SUMMARY:
 
 
stress bpm sq:performance is slow with g1gc - not freeing regions correctly
 
 
DESCRIPTION:
 
The stress team reported that one of their test cases was slow with G1. This 
was partly addressed in JDK-8020155, but even with a fix for that bug, they 
keep seeing lower performance.

Opening this bug to track this. Please see bugdb bug for more details and 
history
Comments
ILW => MML => P4 Impact: Medium, no crash but the performance is not on par with other collectors. Likelihood: Medium, not seen with all benchmarks. Workaround: Low, have been able to tune the performance significantly and can probably get even better with more tuning. We will need more information to be able to move forward with this bug. We would like to have is numbers from JDK8, which have some performance fixes that might affect this issue. Would be nice to run JDK8 both with and without tuning.
03-12-2013