Rich-T-kid commented on PR #12218:
URL: https://github.com/apache/arrow-rs/pull/12218#issuecomment-6837676265

   Targeted `single_ree` filter benchmarks against `upstream/main` 
(`cd91f89509`):
   
   ```bash
   # upstream/main
   cargo bench -p arrow --features test_utils --bench coalesce_kernels -- 
'filter: single_ree' --save-baseline main-11720
   
   # this PR
   cargo bench -p arrow --features test_utils --bench coalesce_kernels -- 
'filter: single_ree' --baseline main-11720
   ```
   
   | Null density | Selectivity | Main | PR | Change |
   |---:|---:|---:|---:|---:|
   | 0 | 0.1% | 180.43 ms | 30.172 ms | **-83.28%** |
   | 0 | 0.5% | 30.950 ms | 9.640 ms | **-68.85%** |
   | 0 | 1% | 14.254 ms | 6.832 ms | **-52.07%** |
   | 0 | 10% | 1.417 ms | 1.415 ms | no change |
   | 0 | 80% | 171.56 us | 171.61 us | no change |
   | 0.1 | 0.1% | 182.58 ms | 30.135 ms | **-83.50%** |
   | 0.1 | 0.5% | 31.241 ms | 10.237 ms | **-67.23%** |
   | 0.1 | 1% | 14.097 ms | 7.396 ms | **-47.54%** |
   | 0.1 | 10% | 1.447 ms | 1.467 ms | +2.31% |
   | 0.1 | 80% | 181.54 us | 174.74 us | **-2.13%** |
   
   Sparse filtering improves by 48-84%. Dense cases are flat apart from the 
nullable 10% case at +2.3%.


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