rmuir commented on PR #12737: URL: https://github.com/apache/lucene/pull/12737#issuecomment-1787943673
I don't want to commit changes that slow down some people's computers. This is a way to go about it that is safe and sane. I view this one the same as the intel downclocking issue (where for @ChrisHegarty RocketLake we leave some performance on the table because it doesn't suffer from downclocking, but most other AVX-512 does suffer). I would like to speedup cases without causing performance slowdowns elsewhere. that way we keep making forward progress. So I'd like to avoid use of FMA on AMD, where some cpus it causes slowdowns compared to mul+add which allows more parallelism due to architecture. -- 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: issues-unsubscr...@lucene.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
