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https://issues.apache.org/jira/browse/FLINK-39502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Anderson resolved FLINK-39502.
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Resolution: Won't Fix
> Performance regression in remoteSortPartition and compressedFilePartition
> -------------------------------------------------------------------------
>
> Key: FLINK-39502
> URL: https://issues.apache.org/jira/browse/FLINK-39502
> Project: Flink
> Issue Type: Bug
> Affects Versions: 2.3.0
> Reporter: David Anderson
> Priority: Not a Priority
> Fix For: 2.3.0
>
> Attachments: SUMMARY.md
>
>
> flink-benchmarks shows a significant performance drop in remoteSortParition
> and compressedFilePartition occurred somewhere between commits f597bef942 and
> 360aa9709b. Unfortunately, these commits are several weeks apart; apparently
> the benchmarks weren't running between Feb 19 and Mar 14.
> See
> [http://flink-speed.xyz/timeline/#/?exe=12&ben=remoteSortPartition&extr=on&quarts=on&equid=off&env=3&revs=200]
> and
> [http://flink-speed.xyz/timeline/#/?exe=12&ben=compressedFilePartition&extr=on&quarts=on&equid=off&env=3&revs=200]
> for more info. The problem occurs for both Java 11 and Java 17.
> !image-2026-04-20-10-39-19-453.png!!image-2026-04-20-10-39-36-416.png!
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