[jira] [Commented] (FLINK-35040) The performance of serializerHeavyString regresses since April 3

["Rui Fan (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-35040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17844903#comment-17844903 ] 

Rui Fan commented on FLINK-35040:
---------------------------------

I attached 3 flamegraphs here, these flamegraphs are generated on flink benchmark server, many thanks to [~Zakelly] for the help.

From these flamegraphs, we cannot find any org.apache.commons.io code is called (I search commons in flamegraph). But the performance regresses after commons.io is upgraded. It's a little strange.

cc [~Weijie Guo] [~rmetzger] [~uce] 

> The performance of serializerHeavyString regresses since April 3
> ----------------------------------------------------------------
>
>                 Key: FLINK-35040
>                 URL: https://issues.apache.org/jira/browse/FLINK-35040
>             Project: Flink
>          Issue Type: Bug
>          Components: Benchmarks
>    Affects Versions: 1.20.0
>            Reporter: Rui Fan
>            Assignee: Rui Fan
>            Priority: Blocker
>              Labels: pull-request-available
>         Attachments: image-2024-04-08-10-51-07-403.png, image-2024-04-11-12-53-53-353.png, result1.html, result2.html, result3.html, screenshot-1.png
>
>
> The performance of serializerHeavyString regresses since April 3, and had not yet recovered on April 8th.
> It seems Java 11 regresses, and Java 8 and Java 17 are fine.
> http://flink-speed.xyz/timeline/#/?exe=1,6,12&ben=serializerHeavyString&extr=on&quarts=on&equid=off&env=3&revs=200
>  !screenshot-1.png! 



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