> From: [email protected] [mailto:[email protected]] On > Behalf Of Jeff Wasilko > > On Tue, Jun 29, 2010 at 09:15:43AM -0400, Edward Ned Harvey wrote: > > . bzip2 is soundly destroyed by 7-zip, if only 7-zip is made > > available as an in-line filter. Presently, in-line filtering is the > only > > reason to ever use bzip2 instead of 7-zip. > > You might want to checkout pbzip2. It's a parallelized version of > bzip2. > Quite fast on multi-core systems!
I'm aware of pbzip2. (I'm the author of threadzip, and the threadzip home page gives you links to both pigz and pbzip2.) 7-zip (lzma) is also parallelizable (in fact, parallel by default.) This still soundly obsoletes bzip2 and pbzip2. In my personal experience, the reason I wanted to create threadzip, was because I have an 8-core machine, where pbzip2 was still slow enough that the processor was the bottleneck in streaming data to tape. Presently, I use threadzip, which is a parallel implementation of libz or zlib or gzip (like pigz) because I'm able to compress the datastream in an inline filter realtime. Now that I know what I know now ... I'll likely adapt that to use 7-zip (lzma) because it's so much better. _______________________________________________ bblisa mailing list [email protected] http://www.bblisa.org/mailman/listinfo/bblisa
