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Posted to issues@flink.apache.org by "Yanfei Lei (Jira)" <ji...@apache.org> on 2022/11/01 04:36:00 UTC

[jira] [Created] (FLINK-29825) Improve benchmark stablility

Yanfei Lei created FLINK-29825:
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             Summary: Improve benchmark stablility
                 Key: FLINK-29825
                 URL: https://issues.apache.org/jira/browse/FLINK-29825
             Project: Flink
          Issue Type: Improvement
          Components: Benchmarks
    Affects Versions: 1.17.0
            Reporter: Yanfei Lei


Currently, regressions are detected by a simple script which may have false positives and false negatives, especially for benchmarks with small absolute values, small value changes would cause large percentage changes. see [here|https://github.com/apache/flink-benchmarks/blob/master/regression_report.py#L132-L136] for details.
And all benchmarks are executed on one physical machine, it might happen that hardware issues affect performance, like "[FLINK-18614] Performance regression 2020.07.13".
 
This ticket aims to improve the precision and recall of the regression-check script.
 



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