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ASF subversion and git services commented on LUCENE-10453: ---------------------------------------------------------- Commit 9d732380aefd41fdbe152eab47eca83d8de4f2af in lucene's branch refs/heads/main from Adrien Grand [ https://gitbox.apache.org/repos/asf?p=lucene.git;h=9d73238 ] LUCENE-10453: Speed up euclidean distances. (#725) > Speed up VectorUtil#squareDistance > ---------------------------------- > > Key: LUCENE-10453 > URL: https://issues.apache.org/jira/browse/LUCENE-10453 > Project: Lucene - Core > Issue Type: Task > Reporter: Adrien Grand > Priority: Minor > > {{VectorUtil#squareDistance}} is used in conjunction with > {{VectorSimilarityFunction#EUCLIDEAN}}. > It didn't get as much love as dot products (LUCENE-9837) yet there seems to > be room for improvement. I wrote a quick JMH benchmark to run some > comparisons: https://github.com/jpountz/vector-similarity-benchmarks. > While it's not as fast as using the vector API (which makes squareDistance > computations more than 2x faster), we can get a ~25% speedup by unrolling the > loop in a similar way to what dot product does. -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org