pitrou commented on PR #34323:
URL: https://github.com/apache/arrow/pull/34323#issuecomment-1448237100
Thanks for the update @mapleFU . For the record, here are the results here
(AMD Ryzen 3900X):
```
------------------------------------------------------------------------------------------------------------------------------------------
Benchmark
Time CPU Iterations UserCounters...
------------------------------------------------------------------------------------------------------------------------------------------
BM_PlainEncodingByteArray/max-string-length:8/batch-size:512
12594 ns 12593 ns 55779 byte_array_bytes=113.789M
items_per_second=40.6586M/s
BM_PlainEncodingByteArray/max-string-length:64/batch-size:512
14420 ns 14417 ns 48331 byte_array_bytes=793.305M
items_per_second=35.5148M/s
BM_PlainEncodingByteArray/max-string-length:1024/batch-size:512
28398 ns 28391 ns 25410 byte_array_bytes=6.6688G
items_per_second=18.0338M/s
BM_PlainEncodingByteArray/max-string-length:8/batch-size:2048
41884 ns 41876 ns 16661 byte_array_bytes=135.671M
items_per_second=48.9058M/s
BM_PlainEncodingByteArray/max-string-length:64/batch-size:2048
44265 ns 44256 ns 15969 byte_array_bytes=1043.1M
items_per_second=46.2757M/s
BM_PlainEncodingByteArray/max-string-length:1024/batch-size:2048
86621 ns 86603 ns 8050 byte_array_bytes=8.41448G
items_per_second=23.6482M/s
BM_DeltaBitLengthEncodingByteArray/max-string-length:8/batch-size:512
32244 ns 32238 ns 21688 byte_array_bytes=44.2435M
items_per_second=15.8817M/s
BM_DeltaBitLengthEncodingByteArray/max-string-length:64/batch-size:512
34539 ns 34531 ns 20295 byte_array_bytes=333.122M
items_per_second=14.8271M/s
BM_DeltaBitLengthEncodingByteArray/max-string-length:1024/batch-size:512
45766 ns 45757 ns 15279 byte_array_bytes=4.00994G
items_per_second=11.1896M/s
BM_DeltaBitLengthEncodingByteArray/max-string-length:8/batch-size:2048
109565 ns 109541 ns 6348 byte_array_bytes=51.6918M
items_per_second=18.6961M/s
BM_DeltaBitLengthEncodingByteArray/max-string-length:64/batch-size:2048
114663 ns 114642 ns 6067 byte_array_bytes=396.296M
items_per_second=17.8643M/s
BM_DeltaBitLengthEncodingByteArray/max-string-length:1024/batch-size:2048
160417 ns 160380 ns 4360 byte_array_bytes=4.55741G
items_per_second=12.7697M/s
BM_PlainDecodingByteArray/max-string-length:8/batch-size:512
4858 ns 4857 ns 144004 byte_array_bytes=293.768M
items_per_second=105.417M/s
BM_PlainDecodingByteArray/max-string-length:64/batch-size:512
4866 ns 4865 ns 143752 byte_array_bytes=2.35955G
items_per_second=105.232M/s
BM_PlainDecodingByteArray/max-string-length:1024/batch-size:512
5001 ns 5001 ns 100000 byte_array_bytes=26.2448G
items_per_second=102.382M/s
BM_PlainDecodingByteArray/max-string-length:8/batch-size:2048
18209 ns 18206 ns 38436 byte_array_bytes=312.984M
items_per_second=112.491M/s
BM_PlainDecodingByteArray/max-string-length:64/batch-size:2048
18233 ns 18230 ns 38397 byte_array_bytes=2.50809G
items_per_second=112.343M/s
BM_PlainDecodingByteArray/max-string-length:1024/batch-size:2048
20200 ns 20197 ns 34499 byte_array_bytes=36.061G
items_per_second=101.4M/s
BM_DeltaBitLengthDecodingByteArray/max-string-length:8/batch-size:512
41635 ns 41627 ns 16834 byte_array_bytes=34.3414M
items_per_second=12.2996M/s
BM_DeltaBitLengthDecodingByteArray/max-string-length:64/batch-size:512
239903 ns 239849 ns 2915 byte_array_bytes=47.8468M
items_per_second=2.13468M/s
BM_DeltaBitLengthDecodingByteArray/max-string-length:1024/batch-size:512
3622032 ns 3621400 ns 193 byte_array_bytes=50.6525M
items_per_second=141.382k/s
BM_DeltaBitLengthDecodingByteArray/max-string-length:8/batch-size:2048
146493 ns 146468 ns 4760 byte_array_bytes=38.7607M
items_per_second=13.9826M/s
BM_DeltaBitLengthDecodingByteArray/max-string-length:64/batch-size:2048
933696 ns 933526 ns 745 byte_array_bytes=48.6634M
items_per_second=2.19383M/s
BM_DeltaBitLengthDecodingByteArray/max-string-length:1024/batch-size:2048
14409849 ns 14407405 ns 49 byte_array_bytes=51.2186M
items_per_second=142.149k/s
BM_PlainDecodingSpacedByteArray/max-string-length:8/batch-size:512
4846 ns 4845 ns 144521 byte_array_bytes=289.765M
items_per_second=105.677M/s null_percent=2
BM_PlainDecodingSpacedByteArray/max-string-length:64/batch-size:512
4846 ns 4846 ns 144301 byte_array_bytes=2.32859G
items_per_second=105.658M/s null_percent=2
BM_PlainDecodingSpacedByteArray/max-string-length:1024/batch-size:512
4978 ns 4977 ns 140527 byte_array_bytes=36.2544G
items_per_second=102.864M/s null_percent=2
BM_PlainDecodingSpacedByteArray/max-string-length:8/batch-size:2048
19194 ns 19192 ns 36455 byte_array_bytes=290.765M
items_per_second=106.711M/s null_percent=2
BM_PlainDecodingSpacedByteArray/max-string-length:64/batch-size:2048
19621 ns 19618 ns 36211 byte_array_bytes=2.317G
items_per_second=104.395M/s null_percent=2
BM_PlainDecodingSpacedByteArray/max-string-length:1024/batch-size:2048
21938 ns 21936 ns 32246 byte_array_bytes=33.0161G
items_per_second=93.3639M/s null_percent=2
BM_DeltaBitLengthDecodingSpacedByteArray/max-string-length:8/batch-size:512
37893 ns 37885 ns 18469 byte_array_bytes=37.0303M
items_per_second=13.5144M/s null_percent=2
BM_DeltaBitLengthDecodingSpacedByteArray/max-string-length:64/batch-size:512
233946 ns 233912 ns 2989 byte_array_bytes=48.2335M
items_per_second=2.18886M/s null_percent=2
BM_DeltaBitLengthDecodingSpacedByteArray/max-string-length:1024/batch-size:512
3587274 ns 3586596 ns 195 byte_array_bytes=50.3079M
items_per_second=142.754k/s null_percent=2
BM_DeltaBitLengthDecodingSpacedByteArray/max-string-length:8/batch-size:2048
142456 ns 142435 ns 4889 byte_array_bytes=38.9947M
items_per_second=14.3785M/s null_percent=2
BM_DeltaBitLengthDecodingSpacedByteArray/max-string-length:64/batch-size:2048
920207 ns 920040 ns 745 byte_array_bytes=47.6696M
items_per_second=2.22599M/s null_percent=2
BM_DeltaBitLengthDecodingSpacedByteArray/max-string-length:1024/batch-size:2048
14224939 ns 14222911 ns 49 byte_array_bytes=50.1702M
items_per_second=143.993k/s null_percent=2
BM_DictDecodingByteArray/max-string-length:8/batch-size:512
22734 ns 22729 ns 30588 bytes_per_second=5.37059M/s
BM_DictDecodingByteArray/max-string-length:64/batch-size:512
25422 ns 25416 ns 27513 bytes_per_second=38.4226M/s
BM_DictDecodingByteArray/max-string-length:1024/batch-size:512
32993 ns 32986 ns 21277 bytes_per_second=473.691M/s
BM_DictDecodingByteArray/max-string-length:8/batch-size:2048
68025 ns 68011 ns 10276 bytes_per_second=1.79487M/s
BM_DictDecodingByteArray/max-string-length:64/batch-size:2048
77163 ns 77147 ns 9060 bytes_per_second=12.6584M/s
BM_DictDecodingByteArray/max-string-length:1024/batch-size:2048
112020 ns 111995 ns 6238 bytes_per_second=139.515M/s
```
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