[ https://issues.apache.org/jira/browse/HARMONY-3906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao-Feng Li updated HARMONY-3906:
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Summary: [drlvm][gc_gen]Significant performance degradation after switch on GC v5 (was:
[drlvm][gc]Significant performance degradation after switch on GC v5)
> [drlvm][gc_gen]Significant performance degradation after switch on GC v5
> ------------------------------------------------------------------------
>
> Key: HARMONY-3906
> URL: https://issues.apache.org/jira/browse/HARMONY-3906
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Pavel Afremov
> Assigned To: Xiao-Feng Li
> Attachments: ExceptionsWeakRefBenchmark.java
>
>
> I found out significant performance degradation of class unloading support after switch
on GC v5. On 1 processor machine performance degradation in micro benchmark from HARMONY-3845
can reach 10 times, on 4 HT processors degradation reaches up 80 times. It is 1000% and 8000%
correspondently!
> I developed additional benchmark, which shows this problem without any changes in VM.
You can find it in attachment.
> Of cause it's a synthetic benchmark. I didn't find any performance issues on specJVM
and specJBB.
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