andygrove commented on PR #558:
URL: https://github.com/apache/datafusion-comet/pull/558#issuecomment-2161776154
> Is that really 839 `nano`seconds versus 68 `pico`seconds or am I
interpreting the units incorrectly?
I am questioning the earlier results now. Latest benchmark comparing safe
version of `decode_i32_to_u16` vs unsafe version of `decode_i32_to_i16`. Now
seeing 67 ns not 68 ps. Curious.
```
parquet_decode/decode_i32_to_i16
time: [66.709 ns 67.213 ns 67.711 ns]
change: [-2.4520% -1.0484% +0.3895%] (p = 0.15 >
0.05)
No change in performance detected.
parquet_decode/decode_i32_to_u16
time: [589.31 ns 590.62 ns 592.21 ns]
Found 3 outliers among 100 measurements (3.00%)
2 (2.00%) high mild
1 (1.00%) high severe
```
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