slow-J commented on PR #16790:
URL: https://github.com/apache/lucene/pull/16790#issuecomment-6524921967

   Thanks for the review @kaivalnp ! Publishing a new commit shortly addressing 
most comments, will come back to the Welford's algorithm one.
   
   Re-ran JMH too and it looks more performant with your input.
   
   `scalarQuantizeVector`: ops/ms, main f7bcc0abd8 -> this PR
   
   | size | main | this PR | ratio |
   |---:|---:|---:|---:|
   | 384 | 41.126 ± 1.232 | 375.719 ± 8.801 | 9.14x |
   | 768 | 19.121 ± 0.617 | 185.526 ± 3.898 | 9.70x |
   | 1024 | 13.892 ± 0.402 | 137.864 ± 3.340 | 9.92x |
   | 4096 | 3.144 ± 0.091 | 33.293 ± 0.624 | 10.59x |
   


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