F21 System Wide Change: lbzip2 as default bzip2 implementation

Matthew Miller mattdm at fedoraproject.org
Fri Apr 4 16:49:25 UTC 2014

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.)

Matthew Miller    --   Fedora Project    --    <mattdm at fedoraproject.org>
                                  "Tepid change for the somewhat better!"

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