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Bug#645869: marked as done (linux-2.6: keep kernel.sched_autogroup_enabled setting default (to 1))

Your message dated Mon, 8 Jul 2013 18:43:21 +0200
with message-id <20130708164321.GA22980@inutil.org>
and subject line Re: Bug#645869: linux-2.6: keep kernel.sched_autogroup_enabled setting default (to 1)
has caused the Debian Bug report #645869,
regarding linux-2.6: keep kernel.sched_autogroup_enabled setting default (to 1)
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
645869: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=645869
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-2.6
Version: 3.0.0-6
Severity: wishlist

Hey,

since few versions, linux-2.6 uses an “autogroup" scheduling setting, which
is supposed to improve the responsiveness, especially for desktop session.

Upstream enables it by default, and there's a sysctl
(kernel.sched_autogroup_enabled) to disable it in case it causes issues.

Debian ships a patch (debian/patches/debian/sched-autogroup-disabled.patch)
which changes the default to disabled.

I'm not too sure what is the rationale for changing the default, but I think
it'd be nice to revert that and keep upstream default, unless there are good
reasons to divert from them.

Regards,
-- 
Yves-Alexis

-- System Information:
Debian Release: wheezy/sid
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

--- End Message ---
--- Begin Message --- 
On Wed, Oct 19, 2011 at 01:55:32PM +0100, Ben Hutchings wrote:
> On Wed, 2011-10-19 at 10:10 +0200, Yves-Alexis Perez wrote:
> > Package: linux-2.6
> > Version: 3.0.0-6
> 
> Not yet released, so you can't tell whether this will be changed!
> 
> > Severity: wishlist
> > 
> > Hey,
> > 
> > since few versions, linux-2.6 uses an “autogroup" scheduling setting, which
> > is supposed to improve the responsiveness, especially for desktop session.
> > 
> > Upstream enables it by default, and there's a sysctl
> > (kernel.sched_autogroup_enabled) to disable it in case it causes issues.
> > 
> > Debian ships a patch (debian/patches/debian/sched-autogroup-disabled.patch)
> > which changes the default to disabled.
> > 
> > I'm not too sure what is the rationale for changing the default, but I think
> > it'd be nice to revert that and keep upstream default, unless there are good
> > reasons to divert from them.
> 
> The upstream default is that it is disabled at compile-time, since
> SCHED_AUTOGROUP is not 'default y' or selected by any other option.
> 
> Our default matches this but adds the option to enable it at run-time.

Closing the bug, since we're following the upstream default here.

Yves-Alexis, maybe the desktop meta packages (XFCE, Gnome, KDE) could
set the sysctl setting?

Cheers,
        Moritz

--- End Message ---
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