PBZIP2 is a parallel implementation of the bzip2 block-sorting file compressor that uses pthreads and achieves near-linear speedup on SMP machines. The output of this version is fully compatible with bzip2 1.0.2 or newer (ie: anything compressed with PBZIP2 can be decompressed with bzip2).License: BSD License (original)Changes:
The ability to compress, decompress, and test data using stdin and pipes is now supported. Support was also added to directly decompress files without using threads when files are small, the system only has 1 CPU, or if the .bz2 file contains 1 bzip2 stream. This version can now compress 0 byte files like bzip2. Support for pbzcat symlink to automatically specify a decompression mode to stdout, just like bzcat, is now included.