alamb commented on PR #7860:
URL: https://github.com/apache/arrow-rs/pull/7860#issuecomment-3160644218

   Pretty nice improvements @zhuqi-lucas  🚀 
   
   ```
   sort string[0-100] nulls to indices 2^12                1.00     43.2±0.17µs 
       ? ?/sec    3.52    151.9±1.43µs        ? ?/sec
   sort string[0-100] to indices 2^12                      1.00     89.7±0.35µs 
       ? ?/sec    3.70    331.9±1.08µs        ? ?/sec
   sort string[0-10] nulls to indices 2^12                 1.00     49.1±0.17µs 
       ? ?/sec    2.48    121.9±0.20µs        ? ?/sec
   sort string[0-10] to indices 2^12                       1.00    125.0±0.35µs 
       ? ?/sec    2.10    262.0±0.57µs        ? ?/sec
   sort string[0-400] nulls to indices 2^12                1.00     43.9±0.24µs 
       ? ?/sec    3.00    131.6±0.39µs        ? ?/sec
   sort string[0-400] to indices 2^12                      1.00     89.6±0.22µs 
       ? ?/sec    3.15    282.4±1.02µs        ? ?/sec
   sort string[1000] nulls to indices 2^12                 1.00     44.7±0.20µs 
       ? ?/sec    2.77    123.6±0.40µs        ? ?/sec
   sort string[1000] to indices 2^12                       1.00     88.8±0.48µs 
       ? ?/sec    2.84    252.0±1.03µs        ? ?/sec
   sort string[100] nulls to indices 2^12                  1.00     43.2±0.18µs 
       ? ?/sec    2.73    117.9±0.23µs        ? ?/sec
   sort string[100] to indices 2^12                        1.00     88.3±0.47µs 
       ? ?/sec    2.81    248.2±0.74µs        ? ?/sec
   sort string[10] dict nulls to indices 2^12              1.01    155.1±1.01µs 
       ? ?/sec    1.00    153.7±0.49µs        ? ?/sec
   sort string[10] dict to indices 2^12                    1.01    322.2±0.53µs 
       ? ?/sec    1.00    317.5±1.95µs        ? ?/sec
   sort string[10] nulls to indices 2^12                   1.00     44.4±0.14µs 
       ? ?/sec    2.74    121.4±0.24µs        ? ?/sec
   sort string[10] to indices 2^12                         1.00     87.5±0.40µs 
       ? ?/sec    2.80    245.1±0.44µs        ? ?/sec
   ```
   


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