AntoinePrv commented on PR #47896: URL: https://github.com/apache/arrow/pull/47896#issuecomment-3435905766
@pitrou removing the `MaxSpread` constexpr logic did not perform well. Up to -20% on decoding benchmarks. For reference: that `MaxSpread` metric is central to the shuffle SIMD algorithm I'm working on: - If small: we can "pack" multiple values in the shuffle and reuse it with multiple rshifts - If very large: we have to do something radically different for packed values that spread over >8 bytes -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
