[jira] [Created] (FLINK-15171) Performance regression in serialisation benchmarks

[Shang Yuanchun (Jira)]

Piotr Nowojski created FLINK-15171:
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             Summary: Performance regression in serialisation benchmarks
                 Key: FLINK-15171
                 URL: https://issues.apache.org/jira/browse/FLINK-15171
             Project: Flink
          Issue Type: Bug
          Components: API / Type Serialization System, Benchmarks
    Affects Versions: 1.10.0
            Reporter: Piotr Nowojski
             Fix For: 1.10.0


There is quite significant performance regression in serialisation benchmarks in the commit range 2ecf7ca..9320f34 (which includes FLINK-14346).

http://codespeed.dak8s.net:8000/timeline/?ben=serializerTuple&env=2
http://codespeed.dak8s.net:8000/timeline/?ben=serializerRow&env=2
http://codespeed.dak8s.net:8000/timeline/?ben=serializerPojo&env=2

it coincides with the performance improvement for heavy strings

http://codespeed.dak8s.net:8000/timeline/?ben=serializerHeavyString&env=2

it might be caused by some accidental change in the benchmarking code (changing parallelism in one benchmarks is carried on to the next one?) or in the code itself.

CC [~rgrebennikov] [~AHeise]



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