[GitHub] [arrow-rs] liukun4515 commented on pull request #2360: [WIP]speed up the decimal validation and add benchmark test

Mon, 08 Aug 2022 01:55:37 -0700 


liukun4515 commented on PR #2360:
URL: https://github.com/apache/arrow-rs/pull/2360#issuecomment-1207851116

   I just add benchmark for validation for decimal128array. Got the result 
below:
   ```
   validate_decimal128_array_slow 20000
                           time:   [125.08 us 125.62 us 126.22 us]
                           change: [-7.0125% -6.4283% -5.8267%] (p = 0.00 < 
0.05)
                           Performance has improved.
   
   validate_decimal128_array_fast 20000
                           time:   [107.54 us 107.72 us 107.88 us]
                           change: [-13.320% -13.002% -12.692%] (p = 0.00 < 
0.05)
                           Performance has improved.
   ```
   From the current code, there is a 10~20% performance improvement.
   


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