[GitHub] [arrow] Dandandan opened a new pull request #9018: ARROW-11039: [Rust] Performance improvement for utf-8 to float

[GitBox]

Dandandan opened a new pull request #9018:
URL: https://github.com/apache/arrow/pull/9018


   Utilize `lexical_core::parse` for faster parsing.
   
   ```
   cast utf8 to f32        time:   [25.840 us 25.878 us 25.921 us]              
                  
                           change: [-45.735% -45.590% -45.408%] (p = 0.00 < 
0.05)
                           Performance has improved.
   Found 7 outliers among 100 measurements (7.00%)
     1 (1.00%) low mild
     3 (3.00%) high mild
     3 (3.00%) high severe
   ```


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