mapleFU commented on PR #39705:
URL: https://github.com/apache/arrow/pull/39705#issuecomment-1911895187
Result in my MacOS with Release(-O2):
```
ReadLevels/MaxLevel:1/NumLevels:8096/BatchSize:1024/LevelRepeatCount:1
3122 ns 3123 ns 225916 bytes_per_second=4.8286G/s
items_per_second=2.59233G/s
ReadLevels/MaxLevel:1/NumLevels:8096/BatchSize:1024/LevelRepeatCount:7
8642 ns 8640 ns 81130 bytes_per_second=1.74531G/s
items_per_second=937.005M/s
ReadLevels/MaxLevel:1/NumLevels:8096/BatchSize:1024/LevelRepeatCount:1024
1124 ns 1124 ns 617709 bytes_per_second=13.4136G/s
items_per_second=7.20137G/s
ReadLevels/MaxLevel:1/NumLevels:8096/BatchSize:2048/LevelRepeatCount:1
2412 ns 2414 ns 290082 bytes_per_second=6.24778G/s
items_per_second=3.35425G/s
ReadLevels/MaxLevel:3/NumLevels:8096/BatchSize:1024/LevelRepeatCount:1
2403 ns 2401 ns 292828 bytes_per_second=6.27942G/s
items_per_second=3.37124G/s
ReadLevels/MaxLevel:3/NumLevels:8096/BatchSize:2048/LevelRepeatCount:1
2201 ns 2202 ns 320742 bytes_per_second=6.84694G/s
items_per_second=3.67592G/s
ReadLevels/MaxLevel:3/NumLevels:8096/BatchSize:1024/LevelRepeatCount:7
7836 ns 7829 ns 90506 bytes_per_second=1.92618G/s
items_per_second=1034.11M/s
ReadLevels_BitPack/MaxLevel:1/NumLevels:8096/BatchSize:1024/LevelRepeatCount:1
1724 ns 1726 ns 397519 bytes_per_second=8.73636G/s
items_per_second=4.6903G/s
ReadLevels_BitPack/MaxLevel:1/NumLevels:8096/BatchSize:1024/LevelRepeatCount:7
1694 ns 1695 ns 411450 bytes_per_second=8.89878G/s
items_per_second=4.7775G/s
ReadLevels_BitPack/MaxLevel:1/NumLevels:8096/BatchSize:1024/LevelRepeatCount:1024
1694 ns 1695 ns 409966 bytes_per_second=8.89797G/s
items_per_second=4.77706G/s
ReadLevels_BitPack/MaxLevel:1/NumLevels:8096/BatchSize:2048/LevelRepeatCount:1
1668 ns 1669 ns 414886 bytes_per_second=9.03668G/s
items_per_second=4.85153G/s
ReadLevels_BitPack/MaxLevel:3/NumLevels:8096/BatchSize:1024/LevelRepeatCount:1
1760 ns 1761 ns 395125 bytes_per_second=8.56206G/s
items_per_second=4.59672G/s
ReadLevels_BitPack/MaxLevel:3/NumLevels:8096/BatchSize:2048/LevelRepeatCount:1
1733 ns 1734 ns 402188 bytes_per_second=8.69522G/s
items_per_second=4.66821G/s
ReadLevels_BitPack/MaxLevel:3/NumLevels:8096/BatchSize:1024/LevelRepeatCount:7
1754 ns 1756 ns 396380 bytes_per_second=8.58685G/s
items_per_second=4.61003G/s
```
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