Note that the bzip2 implementation he uses is 7zip's; the classic unix implementation does not make use of multiple cores. But, there is also pbzip2, which supp

Note that the bzip2 implementation he uses is 7zip's; the classic unix implementation does not make use of multiple cores. But, there is also pbzip2, which supposedly uses all available cores: http://compression.ca/pbzip2/ http://compression.ca/pbzip2/