Dandandan opened a new pull request #8654: URL: https://github.com/apache/arrow/pull/8654
Use ahash https://github.com/tkaitchuck/aHash for hashing algorithm. Difference is mainly visible in group_by benches: ``` aggregate_query_group_by 15 12 time: [2.0644 ms 2.0869 ms 2.1100 ms] change: [-5.4843% -4.1892% -2.8525%] (p = 0.00 < 0.05) Performance has improved. Found 2 outliers among 100 measurements (2.00%) 2 (2.00%) high mild Benchmarking aggregate_query_group_by_with_filter 15 12: Warming up for 3.0000 s Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 9.6s, enable flat sampling, or reduce sample count to 50. aggregate_query_group_by_with_filter 15 12 time: [1.8875 ms 1.9006 ms 1.9140 ms] change: [-9.8182% -8.4717% -7.1023%] (p = 0.00 < 0.05) Performance has improved. Found 5 outliers among 100 measurements (5.00%) 1 (1.00%) high mild 4 (4.00%) high severe ``` ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
