rmuir opened a new pull request, #12743: URL: https://github.com/apache/lucene/pull/12743
I was looking at this curious little guy which seems close to what we want? https://github.com/openjdk/jdk/blob/b3fec6b5f32c338ae1a84dd20bdcbd3d9b7186f3/src/hotspot/cpu/aarch64/aarch64_vector_ad.m4#L1375-L1390 Not sure what it is there for, maybe to speedup some hashing function or crypto or something. it has a test: https://github.com/openjdk/jdk/blob/b3fec6b5f32c338ae1a84dd20bdcbd3d9b7186f3/test/hotspot/jtreg/compiler/loopopts/superword/Vec_MulAddS2I.java#L81 So i changed an integer function to look more like that and it shows speedups on arm without slowdown on x86. needs more investigation. maybe can be applied to some of the other functions, not sure, i am sleepy. ``` master: Benchmark (size) Mode Cnt Score Error Units VectorUtilBenchmark.binaryDotProductScalar 1024 thrpt 5 3.121 ± 0.001 ops/us VectorUtilBenchmark.binaryDotProductVector 1024 thrpt 5 6.742 ± 0.037 ops/us patch: Benchmark (size) Mode Cnt Score Error Units VectorUtilBenchmark.binaryDotProductScalar 1024 thrpt 5 4.523 ± 0.077 ops/us VectorUtilBenchmark.binaryDotProductVector 1024 thrpt 5 6.682 ± 0.066 ops/us ``` -- 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
