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https://issues.apache.org/jira/browse/FLINK-19441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17204616#comment-17204616
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Arvid Heise commented on FLINK-19441:
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The regressions are rather subtle and may be lost in noise for one run.
However, both the content and the timing fit too well as that we can dismiss it.
It would be good to have several benchmark runs of the non-rebased version to
be sure that it's in fact not the cause. It might also make sense to
double-check the code for any unnecessary virtual calls on the hot path.
> Performance regression on 24.09.2020
> ------------------------------------
>
> Key: FLINK-19441
> URL: https://issues.apache.org/jira/browse/FLINK-19441
> Project: Flink
> Issue Type: Bug
> Reporter: Arvid Heise
> Priority: Blocker
>
> A couple of benchmarks are showing a small performance regression on
> 24.09.2020:
> http://codespeed.dak8s.net:8000/timeline/?ben=globalWindow&env=2
> http://codespeed.dak8s.net:8000/timeline/?ben=tupleKeyBy&env=2 (?)
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