bzip2 is a freely available, patent free, high-quality data compressor. It typically compresses files to within 10% to 15% of the best available techniques, whilst being around twice as fast at compression and six times faster at decompression.
bzip2 compresses files using the Burrows-Wheeler block-sorting text compression algorithm, and Huffman coding. Compression is generally considerably better than that achieved by more conventional LZ77/LZ78-based compressors, and approaches the performance of the PPM family of statistical compressors.
The archive file format of bzip2 (.bz2) is incompatible with that of its predecessor, bzip (.bz).
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| 硬件架构 | 软件包大小 | 安装后大小 | 文件 |
|---|---|---|---|
| alpha | 48.1 kB | 164 kB | [文件列表] |
| amd64 | 47.0 kB | 160 kB | [文件列表] |
| arm | 45.4 kB | 152 kB | [文件列表] |
| armel | 46.4 kB | 152 kB | [文件列表] |
| hppa | 46.5 kB | 156 kB | [文件列表] |
| hurd-i386 | 44.0 kB | 152 kB | [文件列表] |
| i386 | 44.1 kB | 152 kB | [文件列表] |
| ia64 | 53.9 kB | 196 kB | [文件列表] |
| kfreebsd-amd64 (非官方移植版) | 46.3 kB | 118 kB | [文件列表] |
| kfreebsd-i386 (非官方移植版) | 44.1 kB | 110 kB | [文件列表] |
| m68k | 43.7 kB | 148 kB | [文件列表] |
| mips | 47.5 kB | 164 kB | [文件列表] |
| mipsel | 46.8 kB | 164 kB | [文件列表] |
| powerpc | 48.8 kB | 164 kB | [文件列表] |
| s390 | 46.8 kB | 160 kB | [文件列表] |
| sparc | 45.4 kB | 156 kB | [文件列表] |