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Posted to github@arrow.apache.org by "comphead (via GitHub)" <gi...@apache.org> on 2023/04/14 04:35:28 UTC

[GitHub] [arrow-datafusion] comphead commented on issue #5969: Clickbench q32 not working in 32GB RAM

comphead commented on issue #5969:
URL: https://github.com/apache/arrow-datafusion/issues/5969#issuecomment-1507912263

   reg to flamegraph the `datafusion::physical_plan::aggregates::row_hash::slice_and_maybe_filter` is expensive.
   its expensive because excessive vector allocations. I will try to rewrite this method tomorrow and share results


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