Re: xz for the new release tip

On 10/01/2009 08:27 AM, Ralf Corsepius wrote:
> On 10/01/2009 08:19 AM, Mark Kettenis wrote:
>>> Date: Wed, 30 Sep 2009 22:28:57 +0200
>>> From: Jan Kratochvil<jan.kratochvil <at> redhat.com>
>>>
>>> Hi,
>>>
>>> while currently the sources are release both as .tar.gz and as
>>> .tar.bz2 would
>>> not it be worth to start using .xz as a replacement for the .bz2
>>> variant?
>>>
>>> 13406892 bytes: gdb-6.8.91.20090930.tar.xz (xz -9)
>>> xz -dc: real 0m1.226s user 0m1.190s sys 0m0.037s
>>>
>>> 18453837 bytes: gdb-6.8.91.20090930.tar.bz2
>>> bzip2 -dc: real 0m3.775s user 0m3.755s sys 0m0.019s
>>
>> Never heard of it, so my guess it isn't used widely enough yet to make
>> sense.
>
> Well, zz is the successor of lzma.
>
> It's supported as "dist compression" by modern autoconf's
> (autoconf-2.64)

Correction: automake (automake-1.11)

, it's the internal compression being used in rpm on
> modern Linux distros (Fedora, openSUSE), etc.
>
> Whether it's stable enough and has a longer term perspective is a
> different question or will prove to be a yet another temporary anecdote
> in compression tools is hard to tell - doubts are justified, IMHO.
>
> Ralf
>
>
>