Re: [proposal] use xz compression for Debian package by default

2012-08-30 Thread Jon Dowland
On Wed, Aug 29, 2012 at 05:12:15PM +0200, Didier 'OdyX' Raboud wrote: We are building a binary distribution which main characteristic is to have the packages built _rarely_. As such, a useful but CPU-expensive operation is always worth it. The situation is slightly different for

Re: [proposal] use xz compression for Debian package by default

2012-08-30 Thread Didier 'OdyX' Raboud
Le jeudi, 30 août 2012 14.46:33, Jon Dowland a écrit : On Wed, Aug 29, 2012 at 05:12:15PM +0200, Didier 'OdyX' Raboud wrote: We are building a binary distribution which main characteristic is to have the packages built _rarely_. As such, a useful but CPU-expensive operation is always worth

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Guillem Jover
Hi! On Tue, 2012-08-28 at 12:10:18 +0900, Hideki Yamane wrote: In DebConf12, I talked about xz compression for Debian packages(*). Now I'll talk about next step, suggestion for use xz with with result from some experiment.

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Marco d'Itri
On Aug 29, Guillem Jover guil...@debian.org wrote: I thought this was already the consensus, and the only dissenting opinion was that the base system should still be using gzip so that foreign non-Debian systems can unpack it w/o requiring to build or install xz beforehand. I am not sure if

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Jon Dowland
On Tue, Aug 28, 2012 at 12:56:47PM +0200, Vincent Lefevre wrote: Before wondering whether PNG files should have an additional compression level, is there any reason why a better PNG compression isn't used in the first place? For instance, optipng -o9 tries various parameters and keeps the best

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Dmitrijs Ledkovs
On 29/08/12 15:01, Jon Dowland wrote: On Tue, Aug 28, 2012 at 12:56:47PM +0200, Vincent Lefevre wrote: Before wondering whether PNG files should have an additional compression level, is there any reason why a better PNG compression isn't used in the first place? For instance, optipng -o9 tries

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Jon Dowland
On Wed, Aug 29, 2012 at 03:17:15PM +0100, Dmitrijs Ledkovs wrote: I don't think it's worth +dfsg, and CPU cycles will only be wasted once on the maintainer side, since most of PNGs are in arch:all packages anyway. I used to hack on the games-thumbnails package a bit, which ran optipng as part

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Didier 'OdyX' Raboud
Le mercredi, 29 août 2012 16.01:43, Jon Dowland a écrit : On Tue, Aug 28, 2012 at 12:56:47PM +0200, Vincent Lefevre wrote: Before wondering whether PNG files should have an additional compression level, is there any reason why a better PNG compression isn't used in the first place? For

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Steve McIntyre
Marco wrote: On Aug 29, Guillem Jover guil...@debian.org wrote: I thought this was already the consensus, and the only dissenting opinion was that the base system should still be using gzip so that foreign non-Debian systems can unpack it w/o requiring to build or install xz beforehand. I am

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Joey Hess
Steve McIntyre wrote: People have worried about it, but I think the consensus from DebConf is that we don't want to be hampered in our own development by considering external users How are external users different from users? -- see shy jo signature.asc Description: Digital signature

Re: [proposal] use xz compression for Debian package by default

2012-08-29 Thread Steve McIntyre
On Wed, Aug 29, 2012 at 12:11:02PM -0400, Joey Hess wrote: Steve McIntyre wrote: People have worried about it, but I think the consensus from DebConf is that we don't want to be hampered in our own development by considering external users How are external users different from users? Sorry,

Re: [proposal] use xz compression for Debian package by default

2012-08-28 Thread Adam Borowski
On Tue, Aug 28, 2012 at 12:10:18PM +0900, Hideki Yamane wrote: In DebConf12, I talked about xz compression for Debian packages(*). Now I'll talk about next step, suggestion for use xz with with result from some experiment.

Re: [proposal] use xz compression for Debian package by default

2012-08-28 Thread Bastian Blank
On Tue, Aug 28, 2012 at 12:10:18PM +0900, Hideki Yamane wrote: We know some packages are better to use gzip, but it's an exception. Using xz is best choice for rest 99.99% of packages. We can deal with such exception by specifying gzip for that (e.g. openclipart-png). Or even no compression

Re: [proposal] use xz compression for Debian package by default

2012-08-28 Thread Vincent Lefevre
On 2012-08-28 12:05:26 +0200, Adam Borowski wrote: On Tue, Aug 28, 2012 at 12:10:18PM +0900, Hideki Yamane wrote: We know some packages are better to use gzip, but it's an exception. Using xz is best choice for rest 99.99% of packages. We can deal with such exception by specifying gzip

Re: [proposal] use xz compression for Debian package by default

2012-08-28 Thread Riku Voipio
On Tue, Aug 28, 2012 at 12:10:18PM +0900, Hideki Yamane wrote: -- conclusion (rest) -- I recommend to use xz ***by default*** (with

Re: [proposal] use xz compression for Debian package by default

2012-08-28 Thread Adam Borowski
On Tue, Aug 28, 2012 at 12:56:47PM +0200, Vincent Lefevre wrote: Before wondering whether PNG files should have an additional compression level, is there any reason why a better PNG compression isn't used in the first place? For instance, optipng -o9 tries various parameters and keeps the best