* Adam Borowski kilob...@angband.pl, 2012-07-22, 23:51:
having an option to disable fsync in dpkg without unreliable LD_PRELOAD
tricks would be great.
http://bugs.debian.org/613428
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Hi,
On Sat, 21 Jul 2012 19:13:45 -0400
Joey Hess jo...@debian.org wrote:
Which is why I asked for actual, real-world benchmarks...
As I said in my presentation, I just tested a few case,
fonts-horai-umefont, poppler-data and openclipart-png.
Install fonts- and poppler-data is almost same
Simon Paillard wrote:
On Sat, Jul 21, 2012 at 09:25:50PM +0300, Uoti Urpala wrote:
So at least in this case the biggest performance problem by far is the
inappropriate use of fsync() or other disk synchronization primitives,
and CPU use for unpacking is pretty much irrelevant.
Though the
On Sun, Jul 22, 2012 at 01:58:59AM +0200, Adam Borowski wrote:
BTW, when we switched to building udebx with xz, Philipp Kern benchmarked
it using little or no additional CPU to decompress xz produced with
-Zxz -z1 -Sextreme http://lists.debian.org/debian-boot/2011/10/msg00247.html
Per the
On Sun, Jul 22, 2012 at 07:58:42PM +0300, Uoti Urpala wrote:
Simon Paillard wrote:
, I understand debian-installer ask dpkg not to fsync:
- Run dpkg with --force-unsafe-io during installation; syncing is
This only affects one particular instance of syncing (which I think may
be
On Mon, 23 Jul 2012, Adam Borowski kilob...@angband.pl wrote:
You tested ext4. On btrfs, dpkg is around an order of magnitude slower,
making using it without eatmydata a laughable idea.
And that's on a filesystem whose features include:
* transactions (so all dpkg processing could be done
Hideki Yamane wrote:
On Sun, 8 Jul 2012 17:58:16 +0200
Adam Borowski kilob...@angband.pl wrote:
• xz -6 (the default) is a lot slower when compressing, fast when
decompressing, needs only 10MB memory, 58% size
• xz -9 has very slow compression, takes gobs of memory, 56% size
On Sat, Jul 21, 2012 at 11:42:03AM -0400, Joey Hess wrote:
Hideki Yamane wrote:
On Sun, 8 Jul 2012 17:58:16 +0200
Adam Borowski kilob...@angband.pl wrote:
• xz -6 (the default) is a lot slower when compressing, fast when
decompressing, needs only 10MB memory, 58% size
• xz -9
Joey Hess wrote:
Hideki Yamane wrote:
I tested as well, and sometimes decompression with xz is so slw,
it takes 6-8 times than default gz.
I was just watching your DebConf presentation Lets shrink Debian
package archive and I think there you said decompression with xz was
between
On Sat, Jul 21, 2012 at 09:25:50PM +0300, Uoti Urpala wrote:
Most of the time taken by cdebootstrap is wasted by dpkg on doing
useless file syncs:
cdebootstrap --arch=amd64 unstable debian-tree/
from local package cache on ext4: 138 seconds
on tmpfs where dpkg can't waste time on
brian m. carlson wrote:
On Sat, Jul 21, 2012 at 09:25:50PM +0300, Uoti Urpala wrote:
So at least in this case the biggest performance problem by far is the
inappropriate use of fsync() or other disk synchronization primitives,
and CPU use for unpacking is pretty much irrelevant.
My
Hi,
On Sat, Jul 21, 2012 at 09:25:50PM +0300, Uoti Urpala wrote:
Joey Hess wrote:
Hideki Yamane wrote:
I tested as well, and sometimes decompression with xz is so slw,
it takes 6-8 times than default gz.
I was just watching your DebConf presentation Lets shrink Debian
Mike Hommey wrote:
Note that slower decompression doesn't necessarily mean longer
installation time. I/O is still more time consuming than CPU.
Which is why I asked for actual, real-world benchmarks...
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On Sat, Jul 21, 2012 at 11:42:03AM -0400, Joey Hess wrote:
Hideki Yamane wrote:
On Sun, 8 Jul 2012 17:58:16 +0200
Adam Borowski kilob...@angband.pl wrote:
• xz -6 (the default) is a lot slower when compressing, fast when
decompressing, needs only 10MB memory, 58% size
• xz -9
Ben Hutchings b...@decadent.org.uk writes:
[...]
- twm: no-one should have to suffer this
And, exactly, why not? Before I've switched to Openbox, it was
one of the two WM's I've used, along with FVWM. And they say
[1] that it still can be handy at times.
Le Sun, Jul 08, 2012 at 02:12:44PM -0600, Joey Hess a écrit :
grub-legacy is still used for multipath and sataraid.
Something was going to be done to make grub2 support those, but
I don't know the status.
Hi,
Grub-legacy is also useful for booting virtual machine images with pv-grub
(such
On Sat, Jul 07, 2012 at 04:22:58PM -0600, Stefano Zacchiroli wrote:
Ansgar has been experimenting with .deb sizes to make the packages
needed for a minimal desktop installation fit in the first CD. It looks
like that's doable by switching to xz compression for the involved
binaries. Would
Hi,
On Sun, 8 Jul 2012 17:58:16 +0200
Adam Borowski kilob...@angband.pl wrote:
• xz -6 (the default) is a lot slower when compressing, fast when
decompressing, needs only 10MB memory, 58% size
• xz -9 has very slow compression, takes gobs of memory, 56% size
(Obviously, the size
On Sat, Jul 07, 2012 at 04:22:58PM -0600, Stefano Zacchiroli wrote:
On Sun, Jul 08, 2012 at 12:03:44AM +0200, Cyril Brulebois wrote:
Ansgar Burchardt ans...@debian.org (07/07/2012):
Another question is if the release team would consider unblocking
updated packages (with just the switch to
On Sat, Jul 07, 2012 at 08:42:07PM +0100, Ben Hutchings wrote:
On Sat, 2012-07-07 at 16:14 +0200, Bastian Blank wrote:
- ftp, telnet: mostly redundant with wget and nc, unless you really like
cleartext authentication
I don't get why anyone would talk about authentication in the context of
ftp
Hi,
On Sat, 7 Jul 2012 04:47:35 +0100
Steve McIntyre st...@einval.com wrote:
So, yes - looks like xz will make a difference here for the wheezy
release, for amd64 at least. It's enough that we'd probably even have
space for the installation manual and release notes to fit \o/.
BTW, I'll talk
On Sun, Jul 08, 2012 at 01:17:32AM +0200, Bastian Blank wrote:
On Sat, Jul 07, 2012 at 04:36:34PM -0600, Joey Hess wrote:
[...]
- grub-legacy
These are all installed by d-i in various situations.
Even grub-legacy?
Yes; d-i in expert mode still has the ability to explicitly choose for
Hi
Stefano Zacchiroli z...@debian.org writes:
Ansgar has been experimenting with .deb sizes to make the packages
needed for a minimal desktop installation fit in the first CD. It looks
like that's doable by switching to xz compression for the involved
binaries. Would you grant freeze
Wouter Verhelst wou...@debian.org (08/07/2012):
On Sun, Jul 08, 2012 at 01:17:32AM +0200, Bastian Blank wrote:
Even grub-legacy?
Yes; d-i in expert mode still has the ability to explicitly choose for
grub legacy, if you really want to.
It looks to me like a current debian-installer build
Cyril Brulebois wrote:
It looks to me like a current debian-installer build installs grub2,
with no option for grub-legacy, even in expert mode.
grub-legacy is still used for multipath and sataraid.
Something was going to be done to make grub2 support those, but
I don't know the status.
--
On Sun, Jul 08, 2012 at 02:12:44PM -0600, Joey Hess wrote:
Cyril Brulebois wrote:
It looks to me like a current debian-installer build installs grub2,
with no option for grub-legacy, even in expert mode.
grub-legacy is still used for multipath and sataraid.
Something was going to be done
Steve McIntyre st...@einval.com writes:
On Fri, Jul 06, 2012 at 09:00:32PM -0600, Ansgar Burchardt wrote:
I tried recompressing all packages in wheezy with xz. The total size
for all amd64+all packages was reduced from 42GB to 33 GB (about 20%).
A per-package listing is available from [1]
[1]
On Fri, Jul 06, 2012 at 10:10:04PM +0100, Steve McIntyre wrote:
http://cdimage.debian.org/cdimage/tmp/new-tasks/gnome-cd.list.gz
Why does this contain debug packages?
Bastian
--
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-- Kirk, The Corbomite
On Sat, Jul 07, 2012 at 03:10:15PM +0200, Bastian Blank wrote:
On Fri, Jul 06, 2012 at 10:10:04PM +0100, Steve McIntyre wrote:
http://cdimage.debian.org/cdimage/tmp/new-tasks/gnome-cd.list.gz
Why does this contain debug packages?
The list posted there is the full sorted list of *all*
On Sat, Jul 07, 2012 at 02:34:44PM +0100, Steve McIntyre wrote:
The list posted there is the full sorted list of *all* packages, as
applied to the full set of CDs. The last one on CD#1 is
gnome-packagekit-data, as I said, and I don't see any debug packages
above that in the list.
Ups, I did
On Sat, 2012-07-07 at 16:14 +0200, Bastian Blank wrote:
On Sat, Jul 07, 2012 at 02:34:44PM +0100, Steve McIntyre wrote:
The list posted there is the full sorted list of *all* packages, as
applied to the full set of CDs. The last one on CD#1 is
gnome-packagekit-data, as I said, and I don't
Ansgar Burchardt ans...@debian.org (07/07/2012):
Another question is if the release team would consider unblocking
updated packages (with just the switch to xz for binaries). I think
it would be nice to be able to get a useful desktop system using just
the first CD, but I'm not sure if they
On Sun, Jul 08, 2012 at 12:03:44AM +0200, Cyril Brulebois wrote:
Ansgar Burchardt ans...@debian.org (07/07/2012):
Another question is if the release team would consider unblocking
updated packages (with just the switch to xz for binaries). I think
it would be nice to be able to get a
- ftp, telnet: mostly redundant with wget and nc, unless you really like
cleartext authentication
- procmail: server
These are priority standard.
- pcmciautils: PCMCIA is dead
- jfsutils, reiserfsprogs, ufsutils: obscure
- discover
- openssh-server: server, not desktop
- grub-legacy
On Sat, Jul 07, 2012 at 04:36:34PM -0600, Joey Hess wrote:
- ftp, telnet: mostly redundant with wget and nc, unless you really like
cleartext authentication
- procmail: server
These are priority standard.
This is fixeable.
- pcmciautils: PCMCIA is dead
- jfsutils, reiserfsprogs,
On Sat, 2012-07-07 at 16:36 -0600, Joey Hess wrote:
- ftp, telnet: mostly redundant with wget and nc, unless you really like
cleartext authentication
- procmail: server
These are priority standard.
Which is not the same as being important to include in a desktop
installation.
-
Quoting Ben Hutchings (b...@decadent.org.uk):
partman-crypto still installs this.
Seems like a bug...? The package is orphaned and dm-crypt has support
for a compatible encryption mode.
Given the level of attention which partman-crypto got during the
squeeze-wheezy release, I'd bet this
Hey people,
Following up on this again...
Back in May I warned about CD sizes[1] for the Wheezy release,
pointing out that CD#1 isn't big enough any more to provide usable
Gnome or KDE installations. There was some discussion about what to do
about that (change compression to xz, switch to the
Steve McIntyre st...@einval.com writes:
Back in May I warned about CD sizes[1] for the Wheezy release,
pointing out that CD#1 isn't big enough any more to provide usable
Gnome or KDE installations.
Indeed. CD1 was really problematic in squeeze too:
As suggested by Ansgar IRL, here's a summary of what compression types
are showing up on each CD (by looking at data.tar.$EXT for all the
.debs and .udebs):
Gnome
=
The last package on amd64 CD#1 is gnome-packagekit-data. task-desktop
fits on CD#1, but task-gnome-desktop is ~110 packages
Hi,
Steve McIntyre st...@einval.com writes:
Back in May I warned about CD sizes[1] for the Wheezy release,
pointing out that CD#1 isn't big enough any more to provide usable
Gnome or KDE installations. There was some discussion about what to do
about that (change compression to xz, switch to
On Fri, Jul 06, 2012 at 09:00:32PM -0600, Ansgar Burchardt wrote:
Hi,
Steve McIntyre st...@einval.com writes:
Back in May I warned about CD sizes[1] for the Wheezy release,
pointing out that CD#1 isn't big enough any more to provide usable
Gnome or KDE installations. There was some discussion
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