pitrou commented on PR #48898: URL: https://github.com/apache/arrow/pull/48898#issuecomment-3777030600
Hmm, it seems performance is behind the expected theoretical throughput. From [Agner Fog's instruction tables](https://www.agner.org/optimize/instruction_tables.pdf), I see that AMD Zen 2 should be able to sustain 4 POPCNT operations/cycle (reciprocal throughput = 0.25), i.e. 32 bytes/cycle on 64-bit ints. -- 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]
