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![Compression ratio
[%]
good bad
16](https://image.slidesharecdn.com/dsirnlp3ltlz4-120930014528-phpapp01/75/DSIRNLP-3-LZ4-16-2048.jpg?cb=1665688095)
![Compression ratio
[%]
good bad
速度重視の他ライブラリ（snappy / lzo）と
比較しても遜色...](https://image.slidesharecdn.com/dsirnlp3ltlz4-120930014528-phpapp01/75/DSIRNLP-3-LZ4-17-2048.jpg?cb=1665688095)
![一致長を厳密に確認する
•早い話が、LSB を求める問題になる
•４or８バイトの XOR の結果(!=0)から以下
の方法で算出
• x86 の bsr 命令を利用する
• [VC] _BitScanReverse/_BitScanR...](https://image.slidesharecdn.com/dsirnlp3ltlz4-120930014528-phpapp01/75/DSIRNLP-3-LZ4-83-2048.jpg?cb=1665688095)
