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Posted to issues-all@impala.apache.org by "Sebastian Pop (Jira)" <ji...@apache.org> on 2023/05/08 18:42:00 UTC

[jira] [Created] (IMPALA-12122) Use isb instead of yield on arm64

Sebastian Pop created IMPALA-12122:
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             Summary: Use isb instead of yield on arm64
                 Key: IMPALA-12122
                 URL: https://issues.apache.org/jira/browse/IMPALA-12122
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend
    Affects Versions: Impala 4.2.0
            Reporter: Sebastian Pop


Chromium switched the implementation of atomicops.h and family to use the C++11 atomics library in this change:

[https://github.com/chromium/chromium/commit/57a4e4a50c673c25e9cdaab53e32f6e53aa0b574]

It allowed for a large simplification later on where most of the platform-specific logic and assembly could be removed. This seems easier to maintain than the current code.



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