[GitHub] [incubator-doris] ZhangYu0123 edited a comment on pull request #4366: Optimise coding bit operation in BE

[GitBox <gi...@apache.org>]

ZhangYu0123 edited a comment on pull request #4366:
URL: https://github.com/apache/incubator-doris/pull/4366#issuecomment-675244849


   > Not intended to interfere, just curious about how many improvements can be achieved from this PR, are there any benchmarks?
   
   In my develop computure, when execute 1 billion times encode_varint64.  `v | B`  version averagely uses 95095ms  in 5 times.
   `(v & (B - 1))`  version averagely uses 96103ms  in 5 times.  It can improve aboat  0.5% ～ 1%.  Encode_varint64 use  high frequency in many case like bitmap_value,  page_pointer encode and so on.
   
   


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