On Fri, Apr 04, 2014 at 12:49:25PM -0400, Matthew Miller wrote: > On Fri, Apr 04, 2014 at 04:15:59PM +0200, Mikolaj Izdebski wrote: > > "lbzip2" was the fastest compressor and decompressor in all tests. > > It the best command for interactive use. > > > > "lbzip2 -u" always produced smallest files (even smaller than bzip2) > > while consuming the least amount of resources (CPU power and memory). > > This directly translates to lowest bills in cloud, which makes "lbzip2 > > -u" the best choice here. > > But... the size difference in your test cases appear to be 0.1% and > 0.02%. Am I reading that right? And, compressing linux-3.12.6.tar with xz > instead of bzip2 gives a 15.6%, or with xz -9, 19.7%. Of course, that's very > slow, and the other resource factors are important too. (And lbzip2 is > impressively fast.) I think that xz is orthogonal: bzip2 files are quite popular and gains in decompression speed are useful, even if bzip2 isn't the compressor of choice. OTOH, we could also replace xz with a multithreaded implementation like pxz by default. In case of xz it would matter even more, since it is generally slower. It would be great if somebody proposed a change like that. Zbyszek -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
