From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
Mike Galbraith <efault@gmx.de>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Dmitry Adamushko <dmitry.adamushko@gmail.com>,
lkml <linux-kernel@vger.kernel.org>,
maneesh@linux.vnet.ibm.com,
Andrew Morton <akpm@linux-foundation.org>,
Sudhir Kumar <skumar@linux.vnet.ibm.com>
Subject: Re: [RFC/PATCH -v2] Add sysfs control to modify a user's cpu share
Date: Thu, 4 Oct 2007 10:54:51 +0200 [thread overview]
Message-ID: <20071004085451.GA8108@osiris.boeblingen.de.ibm.com> (raw)
In-Reply-To: <20071004075750.GD9176@elte.hu>
> > Changelog since v1:
> > 1. Added a mutex to serialize directory creation/destruction for a user in
> > sysfs
> > 2. Added a spinlock in the task_group structure to serialize writes to
> > tg->shares.
> > 3. Removed /proc/root_user_cpu_shares.
> > 4. Added Documentation about the group scheduler.
>
> thanks - I have added this to the queue.
>
> i'm wondering about the following: could not (yet) existing UIDs be made
> configurable too? I.e. if i do this in a bootup script:
>
> echo 2048 > /sys/kernel/uids/500/cpu_share
>
> this should just work too, regardless of there not being any UID 500
> tasks yet. Likewise, once configured, the /sys/kernel/uids/* directories
> (with the settings in them) should probably not go away either.
Shouldn't that be done via uevents? E.g. UID x gets added to the sysfs tree,
generates a uevent and a script then figures out the cpu_share and sets it.
That way you also don't need to keep the directories. No?
next prev parent reply other threads:[~2007-10-04 8:56 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-24 21:45 [git] CFS-devel, latest code Ingo Molnar
2007-09-24 21:55 ` Andrew Morton
2007-09-24 21:59 ` Ingo Molnar
2007-09-25 0:08 ` Daniel Walker
2007-09-25 6:45 ` Ingo Molnar
2007-09-25 15:17 ` Daniel Walker
2007-09-25 6:10 ` Mike Galbraith
2007-09-25 7:35 ` Mike Galbraith
2007-09-25 8:33 ` Mike Galbraith
2007-09-25 8:53 ` Srivatsa Vaddagiri
2007-09-25 9:11 ` Srivatsa Vaddagiri
2007-09-25 9:15 ` Mike Galbraith
2007-09-25 9:12 ` Mike Galbraith
2007-09-25 9:13 ` Ingo Molnar
2007-09-25 9:17 ` Mike Galbraith
2007-09-25 9:47 ` Ingo Molnar
2007-09-25 10:02 ` Mike Galbraith
2007-09-26 8:04 ` Mike Galbraith
2007-09-28 21:46 ` Bill Davidsen
2007-09-25 9:44 ` Srivatsa Vaddagiri
2007-09-25 9:40 ` Ingo Molnar
2007-09-25 10:10 ` Ingo Molnar
2007-09-25 10:28 ` Srivatsa Vaddagiri
2007-09-25 10:36 ` Ingo Molnar
2007-09-25 11:33 ` Ingo Molnar
2007-09-25 14:48 ` Srivatsa Vaddagiri
2007-09-25 12:51 ` Srivatsa Vaddagiri
2007-09-25 13:35 ` Mike Galbraith
2007-09-25 14:07 ` Srivatsa Vaddagiri
2007-09-25 12:28 ` Mike Galbraith
2007-09-25 12:54 ` Mike Galbraith
[not found] ` <20070925131717.GM26289@linux.vnet.ibm.com>
[not found] ` <1190725693.13716.10.camel@Homer.simpson.net>
[not found] ` <20070925132528.GN26289@linux.vnet.ibm.com>
[not found] ` <1190726682.11260.1.camel@Homer.simpson.net>
[not found] ` <20070925140559.GB26310@linux.vnet.ibm.com>
[not found] ` <20070925143755.GA15594@elte.hu>
[not found] ` <20070926210737.GA8663@elte.hu>
2007-10-01 14:04 ` [RFC/PATCH] Add sysfs control to modify a user's cpu share Dhaval Giani
2007-10-01 14:44 ` Ingo Molnar
2007-10-01 15:32 ` Srivatsa Vaddagiri
2007-10-02 22:12 ` Eric St-Laurent
2007-10-03 4:09 ` Srivatsa Vaddagiri
2007-10-03 17:10 ` [RFC/PATCH -v2] " Dhaval Giani
2007-10-04 7:57 ` Ingo Molnar
2007-10-04 8:54 ` Heiko Carstens [this message]
2007-10-04 16:02 ` Bill Davidsen
2007-10-04 17:20 ` Srivatsa Vaddagiri
2007-10-04 21:32 ` Valdis.Kletnieks
2007-10-05 7:01 ` Srivatsa Vaddagiri
2007-10-09 15:12 ` [PATCH sched-devel] Generate uevents for user creation/destruction Srivatsa Vaddagiri
2007-10-10 7:42 ` Ingo Molnar
2007-10-01 16:12 ` [RFC/PATCH] Add sysfs control to modify a user's cpu share Dave Jones
2007-10-01 16:37 ` Srivatsa Vaddagiri
2007-09-25 6:50 ` [git] CFS-devel, latest code S.Çağlar Onur
2007-09-25 9:17 ` Ingo Molnar
2007-09-25 7:41 ` Andrew Morton
2007-09-25 8:43 ` Srivatsa Vaddagiri
2007-09-25 8:48 ` Andrew Morton
2007-09-25 11:00 ` Ingo Molnar
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