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https://issues.apache.org/jira/browse/FLINK-18684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17163562#comment-17163562
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Roman Khachatryan commented on FLINK-18684:
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I benchmarked an older version again (builds 199, 200) but it didn't show
regression in sterilization.
It showed that some improved (serializeHeavyString, serializeRow)
while some degraded (readFileSplit, serializeKryo).
Now running master again with powersave governor.
> Performance regression around 2020.07.22 in serialization
> ---------------------------------------------------------
>
> Key: FLINK-18684
> URL: https://issues.apache.org/jira/browse/FLINK-18684
> Project: Flink
> Issue Type: Bug
> Components: Benchmarks
> Affects Versions: 1.12.0
> Reporter: Roman Khachatryan
> Assignee: Roman Khachatryan
> Priority: Major
>
> {quote}Performance regression
> [serializerHeavyString|http://codespeed.dak8s.net:8000/timeline/#/?exe=1,3&ben=serializerHeavyString&env=2&revs=200&equid=off&quarts=on&extr=on]:
> median=242, last=203, dev=39, median of last 10=203, trend change: -17,
> median dev=4, ratio=9, threshold=6
> [serializerKryo|http://codespeed.dak8s.net:8000/timeline/#/?exe=1,3&ben=serializerKryo&env=2&revs=200&equid=off&quarts=on&extr=on]:
> median=245, last=206, dev=39, median of last 10=222, trend change: -10,
> median dev=5, ratio=7, threshold=6
> [serializerPojo|http://codespeed.dak8s.net:8000/timeline/#/?exe=1,3&ben=serializerPojo&env=2&revs=200&equid=off&quarts=on&extr=on]:
> median=640, last=605, dev=35, median of last 10=595, trend change: -8,
> median dev=23, ratio=1, threshold=6
> [serializerRow|http://codespeed.dak8s.net:8000/timeline/#/?exe=1,3&ben=serializerRow&env=2&revs=200&equid=off&quarts=on&extr=on]:
> median=865, last=810, dev=55, median of last 10=820, trend change: -6,
> median dev=18, ratio=3, threshold=6
> [serializerTuple|http://codespeed.dak8s.net:8000/timeline/#/?exe=1,3&ben=serializerTuple&env=2&revs=200&equid=off&quarts=on&extr=on]:
> median=1009, last=958, dev=51, median of last 10=968, trend change: -5,
> median dev=18, ratio=2, threshold=6{quote}
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