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  1. Apache Arrow
  2. ARROW-13997

[C++] restore exec node based query performance

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Details

    • Bug
    • Status: Resolved
    • Blocker
    • Resolution: Fixed
    • 6.0.0
    • 6.0.0
    • C++
    • None

    Description

      The R bindings transitioned to using exec nodes for all queries. Since ARROW-13740 was merged, the performance for our queries has been slower. ARROW-13940 corrected the accidental disabling of multi threading, which recovered some of the performance, but not all of it.

      The three benchmarks showing the degradation:
      https://conbench.ursa.dev/benchmarks/c6d37c1517af405dbb8ebad83eec010c/
      https://conbench.ursa.dev/benchmarks/cec58c9c21234ffbb1bab28b7fe409ef/
      https://conbench.ursa.dev/benchmarks/99c04f5ef2fe4caf868904699c2f377c/

      The queries for these are defined (by name) at: https://github.com/ursacomputing/arrowbench/blob/19cb0e5dac316ae5e3c9cac4d7534fc202459fe0/R/bm-dataset-taxi-parquet.R#L27-L90

      For 2 of the three, there was a large increase when ARROW-13740 was merged and plateau, and then a smaller step down when ARROW-13940 was merged, but we still haven't reverted to the pre-change mean.

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              Unassigned Unassigned
              jonkeane Jonathan Keane
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                Updated:
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