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Posted to jira@arrow.apache.org by "Weston Pace (Jira)" <ji...@apache.org> on 2021/02/04 01:09:00 UTC

[jira] [Created] (ARROW-11490) [C++] BM_ArrowBinaryDict/EncodeLowLevel is not deterministic

Weston Pace created ARROW-11490:
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             Summary: [C++] BM_ArrowBinaryDict/EncodeLowLevel is not deterministic
                 Key: ARROW-11490
                 URL: https://issues.apache.org/jira/browse/ARROW-11490
             Project: Apache Arrow
          Issue Type: Bug
          Components: Benchmarking, C++
            Reporter: Weston Pace
            Assignee: Weston Pace


This benchmark is pretty unreliable if you run more than one iteration.  Even though it is setting a constant seed each time it is not clearing the old values from the previous runs and so it ends up running on different data each iteration which can have drastically different results.



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