mapleFU commented on PR #39807:
URL: https://github.com/apache/arrow/pull/39807#issuecomment-1927580153
Before optimize:
```
CompressionInputZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:8192
16717 ns 16318 ns 43287 bytes_per_second=73.5798M/s
CompressionInputZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:65536
96598 ns 94595 ns 6962 bytes_per_second=97.6409M/s
CompressionInputZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:1048576
1592301 ns 1589814 ns 440 bytes_per_second=90.8238M/s
CompressionInputNonZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:8192
19860 ns 19794 ns 36185 bytes_per_second=60.6601M/s
CompressionInputNonZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:65536
103077 ns 101591 ns 7024 bytes_per_second=90.9171M/s
CompressionInputNonZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:1048576
1680448 ns 1636030 ns 428 bytes_per_second=88.2581M/s
```
After:
```
CompressionInputZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:8192
18100 ns 17072 ns 40079 bytes_per_second=70.3304M/s
CompressionInputZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:65536
95859 ns 93712 ns 7438 bytes_per_second=98.5613M/s
CompressionInputZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:1048576
1629148 ns 1608965 ns 428 bytes_per_second=89.7428M/s
CompressionInputNonZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:8192
20614 ns 20083 ns 33628 bytes_per_second=59.7863M/s
CompressionInputNonZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:65536
100852 ns 98297 ns 6913 bytes_per_second=93.9637M/s
CompressionInputNonZeroCopyBenchmark<::arrow::Compression::GZIP>/InputBytes:1048576
1615719 ns 1608626 ns 433 bytes_per_second=89.7617M/s
```
Seems it even be slower in some cases, I'll try on it later
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