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https://issues.apache.org/jira/browse/FLINK-19440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17210231#comment-17210231
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Dawid Wysakowicz commented on FLINK-19440:
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I verified that these regression are caused by upgrading the Avro version. If I
simply downgrade the Avro version used in benchmarks back to 1.8.2, we're back
to the old values. See results (attached) [^jmh-result.csv]. I added a note to
the Release notes of FLINK-18192 with that observation and a possibility to
downgrade Avro in user's job.
I will close the ticket as I don't think there is anything in particular that
we can do here.
> Performance regression on 15.09.2020
> ------------------------------------
>
> Key: FLINK-19440
> URL: https://issues.apache.org/jira/browse/FLINK-19440
> Project: Flink
> Issue Type: Bug
> Components: API / Type Serialization System, Benchmarks
> Affects Versions: 1.12.0
> Reporter: Piotr Nowojski
> Assignee: Dawid Wysakowicz
> Priority: Blocker
> Attachments: jmh-result.csv
>
>
> {{serializerAvro}} benchmark is showing a regression on 15.09.2020:
> http://codespeed.dak8s.net:8000/timeline/?ben=serializerAvro&env=2
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