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Roman Khachatryan commented on FLINK-18786: ------------------------------------------- The same symptoms as in FLINK-18684: regression in some tests observed over time, but can't be reproduced retroactively: {code:java} (older commit) 4b25ba27922e1e7c4a17067fc94b69c5eac4ad2d "MemoryStateBackendBenchmark.stateBackends","thrpt",1,30,4562.465426,100.369594,"ops/ms",,,MEMORY "MemoryStateBackendBenchmark.stateBackends","thrpt",1,30,4182.523419,79.437423,"ops/ms",,,FS "MemoryStateBackendBenchmark.stateBackends","thrpt",1,30,4584.939673,152.263596,"ops/ms",,,FS_ASYNC{code} {code:java} (newer commit) 27ecf02fb2a8e61b68e93190080f540e53aca171 "MemoryStateBackendBenchmark.stateBackends","thrpt",1,30,4570.875302,141.128996,"ops/ms",,,MEMORY "MemoryStateBackendBenchmark.stateBackends","thrpt",1,30,4221.538372,93.620711,"ops/ms",,,FS "MemoryStateBackendBenchmark.stateBackends","thrpt",1,30,4575.985146,115.443546,"ops/ms",,,FS_ASYNC{code} Running locally: {code:java} (older commit) 4b25ba2 Benchmark (stateBackend) Mode Cnt Score Error Units MemoryStateBackendBenchmark.stateBackends MEMORY thrpt 30 3072.503 ± 58.403 ops/ms MemoryStateBackendBenchmark.stateBackends FS thrpt 30 2910.727 ± 32.738 ops/ms MemoryStateBackendBenchmark.stateBackends FS_ASYNC thrpt 30 3145.262 ± 41.423 ops/ms{code} {code:java} (newer commit) 3ab1a1c66772320a0901ea085cfeaa6bf161bf9a Benchmark (stateBackend) Mode Cnt Score Error Units MemoryStateBackendBenchmark.stateBackends MEMORY thrpt 30 3117.415 ± 36.979 ops/ms MemoryStateBackendBenchmark.stateBackends FS thrpt 30 2917.314 ± 40.304 ops/ms MemoryStateBackendBenchmark.stateBackends FS_ASYNC thrpt 30 3062.132 ± 102.320 ops/ms{code} > Performance regresssion on 2020.07.29 in some state backend benchmarks > ---------------------------------------------------------------------- > > Key: FLINK-18786 > URL: https://issues.apache.org/jira/browse/FLINK-18786 > Project: Flink > Issue Type: Bug > Components: Benchmarks, Runtime / State Backends > Affects Versions: 1.12.0 > Reporter: Roman Khachatryan > Assignee: Roman Khachatryan > Priority: Major > Attachments: statebackend-fs-maybe-regression.png > > > E.g. > [http://codespeed.dak8s.net:8000/timeline/#/?exe=1,3&ben=stateBackends.FS&env=2&revs=200&equid=off&quarts=on&extr=on] > [http://codespeed.dak8s.net:8000/timeline/?ben=stateBackends.ROCKS&env=2] > [http://codespeed.dak8s.net:8000/timeline/?ben=stateBackends.ROCKS&env=2#/?exe=1,3&ben=stateBackends.ROCKS_INC&env=2&revs=200&equid=off&quarts=on&extr=on] > [http://codespeed.dak8s.net:8000/timeline/?ben=slidingWindow&env=2] > > See attachment for some hints -- This message was sent by Atlassian Jira (v8.3.4#803005)