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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2021/03/26 03:15:37 UTC

[GitHub] [flink] Thesharing edited a comment on pull request #15314: [FLINK-21332][runtime] Optimize releasing result partitions in RegionPartitionReleaseStrategy

Thesharing edited a comment on pull request #15314:
URL: https://github.com/apache/flink/pull/15314#issuecomment-804025086


   It's worth noting that although after the optimization the complexity is O(N), the time cost on RegionPartitionReleaseStrategy#filterReleasablePartitions is still a bit long. As illustrated in the figure below, we can see that most of time is spent on `HashMap.get`.
   
   ![Illustration](https://user-images.githubusercontent.com/6576831/111989779-2e45c880-8b4d-11eb-93e8-ed2ecb31729a.png)
   


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