Re: Use better compression for udebs?

2017-08-06 Thread Aurelien Jarno 
On 2017-07-31 05:29, Niels Thykier wrote:
> On Mon, 31 Jul 2017 00:44:30 +0300 Adrian Bunk  wrote:
> > Package: debhelper
> > Version: 10.2.5
> > Severity: normal
> > 
> > Following up on an observation I made in #868674:
> > 
> > udebs are currently compressed with "xz -1 -extreme",
> > while normal packages are compressed with "xz -6".
> > 
> > "xz -1" requires 2 MiB memory for decompression and
> > "xz -6" requires 9 MiB memory for decompression.
> > 
> > Is there any situation left where these 7 MiB difference still matter?
> > 
> > Is there is no situation left where 9 MiB memory usage for
> > decompression are a problem, then "xz -6 -extreme" would
> > be a better choice.
> > 
> > 
> 
> I think this is a question better asked in debian-boot.  :)

Noawadays, system installed with d-i won't work with less than about
160MB of memory. So I guess this should not be an issue to just build
udeb packages the same ways than deb packages.

Aurelien

-- 
Aurelien Jarno  GPG: 4096R/1DDD8C9B
aurel...@aurel32.net http://www.aurel32.net

Re: Use better compression for udebs?

2017-07-30 Thread Niels Thykier 
On Mon, 31 Jul 2017 00:44:30 +0300 Adrian Bunk  wrote:
> Package: debhelper
> Version: 10.2.5
> Severity: normal
> 
> Following up on an observation I made in #868674:
> 
> udebs are currently compressed with "xz -1 -extreme",
> while normal packages are compressed with "xz -6".
> 
> "xz -1" requires 2 MiB memory for decompression and
> "xz -6" requires 9 MiB memory for decompression.
> 
> Is there any situation left where these 7 MiB difference still matter?
> 
> Is there is no situation left where 9 MiB memory usage for
> decompression are a problem, then "xz -6 -extreme" would
> be a better choice.
> 
> 

I think this is a question better asked in debian-boot.  :)

Thanks,
~Niels

Bug#870201: Use better compression for udebs?

2017-07-30 Thread Adrian Bunk 
Package: debhelper
Version: 10.2.5
Severity: normal

Following up on an observation I made in #868674:

udebs are currently compressed with "xz -1 -extreme",
while normal packages are compressed with "xz -6".

"xz -1" requires 2 MiB memory for decompression and
"xz -6" requires 9 MiB memory for decompression.

Is there any situation left where these 7 MiB difference still matter?

Is there is no situation left where 9 MiB memory usage for
decompression are a problem, then "xz -6 -extreme" would
be a better choice.