Off list.
Thanks!
Richard
On Fri, Oct 25, 2013 at 05:36:08PM +0200, Marko Randjelovic wrote:
> Not quite, xz is also slower than gzip in decompression, cca 3 times,
> which is not neglectable on slow machines, especially when installing
> large sets of packages.
This is incorrect. xz -[012] is way better in terms of decom
On Fri, 25 Oct 2013 15:52:38 +0200
Adam Borowski wrote:
> xz has slow compression, fast decompression. You're not really going to
> build packages on any box where compression speed is a blocker, and even if
> you do, actually building the package will take a wolf share of the time.
>
> On the
On Fri, Oct 25, 2013 at 03:33:42PM +0200, Marko Randjelovic wrote:
> > correct me if I'm wrong, but it appears to me that xz compression has
> > become the default in dpkg. With that in mind, won't this issue come up
> > anyway? I mean, once a maintainer fixes a bug in a pckage and uplods it,
> > t
On Wed, 16 Oct 2013 19:49:54 +0200
Dominik George wrote:
> Hi,
>
> > The only problem is that on small machines (things like the BeagleBone)
> > xz compression requires enough memory that you have to enable swap to
> > use dpkg. Now on a machine with a sensible disk this is not a problem,
> >
On Fri, 18 Oct 2013, Guillem Jover wrote:
> For example on one of my 64-bit systems, with 220481 paths installed, I
> go from 62.8 MiB to 46.1 MiB max resident memory, a saving of 16.7 MiB.
> That should compensate a bit for the slight increase in memory usage
> from xz.
This is great, thank you!
Hi!
On Wed, 2013-10-16 at 17:32:37 +0100, David Goodenough wrote:
> xy may only use a tiny bit, but the combination of apt-get, dpkg and
> xy seems to cause problems. Its not just BeagleBones, there are x86
> machines with just 64MB still on sale.
Ok, I went through the dpkg code, and have reduc
On Thu, Oct 17, 2013 at 09:39:34PM +0900, Charles Plessy wrote:
> Le Thu, Oct 17, 2013 at 11:31:23AM +, Thorsten Glaser a écrit :
> >
> > It’s actually apt/dpkg that takes that much memory because,
> > you know, a database listing >3 binary packages in sid *does* take
> > quite some RAM. W
SEE 271...@bugs.debian.org
Maybe insted of reading the file in memory concatenating then mmaping the
resulting file will help in case of low memory
Bastien
Le 17 oct. 2013 13:43, "Jonathan Dowland" a écrit :
> On Thu, Oct 17, 2013 at 11:31:23AM +, Thorsten Glaser wrote:
> > So, this means t
Le Thu, Oct 17, 2013 at 11:31:23AM +, Thorsten Glaser a écrit :
>
> It’s actually apt/dpkg that takes that much memory because,
> you know, a database listing >3 binary packages in sid *does* take
> quite some RAM. We have the same problem on m68k, but you can’t do much
> against that (exc
On Thu, Oct 17, 2013 at 11:31:23AM +, Thorsten Glaser wrote:
> So, this means that, yes, you need a total of at least 128 MiB RAM+swap,
> if not more, to use apt/dpkg in sid (and recent releases were not much
> smaller).
Managed with ~100M with squeeze (in VMs) — I remember because I recall
yu
David Goodenough btconnect.com> writes:
> xy may only use a tiny bit, but the combination of apt-get, dpkg and
> xy seems to cause problems. Its not just BeagleBones, there are x86
> machines with just 64MB still on sale.
SOL then. It’s actually apt/dpkg that takes that much memory because,
you
On Wed, October 16, 2013 16:20, Hideki Yamane wrote:
> As dpkg introduced xz compression by default, we can make whole
> packages xz-ed now. I think it's worth to try, so propose it as
> a release goal (I know it should be sent before its dead line, but
> please read).
Because dpkg >=1.17.0 al
On 10/17/2013 12:35 AM, Lars Wirzenius wrote:
> On Wed, Oct 16, 2013 at 05:32:37PM +0100, David Goodenough wrote:
>> xy may only use a tiny bit, but the combination of apt-get, dpkg and
>> xy seems to cause problems. Its not just BeagleBones, there are x86
>> machines with just 64MB still on sale.
Hi,
> The only problem is that on small machines (things like the BeagleBone)
> xz compression requires enough memory that you have to enable swap to
> use dpkg. Now on a machine with a sensible disk this is not a problem,
> but on a machine where the "disk" is an SD-card it is a disaster.
corre
On Wed, Oct 16, 2013 at 07:19:19PM +0300, Marius Gavrilescu wrote:
> At the default preset (-6), the required RAM for decompressing is about
> 9MB. The BeagleBone seems to have 256MB of memory (that's what
> Wikipedia says), so 9MB shouldn't be an issue.
Didn't we discuss this last year already?
Lars Wirzenius writes:
> Do we expect to build Debian packages on such systems?
David's point was that installing such a package would require too much
memory due to xz's decompression memory requirements (9MB with default
options).
--
Marius Gavrilescu
pgpuiMWwJJsFS.pgp
Description: PGP sign
On Wednesday 16 Oct 2013, Lars Wirzenius wrote:
> On Wed, Oct 16, 2013 at 05:32:37PM +0100, David Goodenough wrote:
> > xy may only use a tiny bit, but the combination of apt-get, dpkg and
> > xy seems to cause problems. Its not just BeagleBones, there are x86
> > machines with just 64MB still on
On Wed, Oct 16, 2013 at 05:32:37PM +0100, David Goodenough wrote:
> xy may only use a tiny bit, but the combination of apt-get, dpkg and
> xy seems to cause problems. Its not just BeagleBones, there are x86
> machines with just 64MB still on sale.
Do we expect to build Debian packages on such sys
On Wednesday 16 Oct 2013, Marius Gavrilescu wrote:
> David Goodenough writes:
> > The only problem is that on small machines (things like the BeagleBone)
> > xz compression requires enough memory that you have to enable swap to
> > use dpkg. Now on a machine with a sensible disk this is not a pro
David Goodenough writes:
> The only problem is that on small machines (things like the BeagleBone)
> xz compression requires enough memory that you have to enable swap to
> use dpkg. Now on a machine with a sensible disk this is not a problem,
> but on a machine where the "disk" is an SD-card it
On Wednesday 16 Oct 2013, Hideki Yamane wrote:
> Hi,
>
> As dpkg introduced xz compression by default, we can make whole
> packages xz-ed now. I think it's worth to try, so propose it as
> a release goal (I know it should be sent before its dead line, but
> please read).
>
>
> --
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