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Posted to jira@arrow.apache.org by "Ben Kietzman (Jira)" <ji...@apache.org> on 2020/11/10 13:58:00 UTC

[jira] [Created] (ARROW-10544) [C++] Provide per-processor Executors to support pinning workflows to a core

Ben Kietzman created ARROW-10544:
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             Summary: [C++] Provide per-processor Executors to support pinning workflows to a core
                 Key: ARROW-10544
                 URL: https://issues.apache.org/jira/browse/ARROW-10544
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
    Affects Versions: 2.0.0
            Reporter: Ben Kietzman


For many workflows, there is a distinct performance advantage to avoiding transfer of a task between processors.  For example when iteratively processing a small dataset keeping everything local to a single CPU can avoid churn in split caches. Allowing each logical core to be accessible as an {{Executor}} would be one way to give developers the requisite control.



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