ctsk commented on PR #14566:
URL: https://github.com/apache/datafusion/pull/14566#issuecomment-2647275498
## Micro-benchmark results
- `group_ordering_$n` benchmarks the partial group ordering where the
ordering contains $n columns. Each Columns consists of 8192 Int32s.
```
group_ordering_partial/order_indices_1
time: [16.814 µs 17.340 µs 17.934 µs]
change: [-71.063% -70.318% -69.568%] (p = 0.00 <
0.05)
Performance has improved.
group_ordering_partial/order_indices_2
time: [23.585 µs 23.907 µs 24.176 µs]
change: [-65.486% -64.711% -63.930%] (p = 0.00 <
0.05)
Performance has improved.
group_ordering_partial/order_indices_4
time: [28.452 µs 28.603 µs 28.794 µs]
change: [-52.826% -52.404% -51.942%] (p = 0.00 <
0.05)
Performance has improved.
group_ordering_partial/order_indices_8
time: [34.737 µs 34.828 µs 34.935 µs]
change: [-64.151% -63.876% -63.589%] (p = 0.00 <
0.05)
Performance has improved.
```
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