From: Pavel Machek <pavel@ucw.cz>
To: Andrea Righi <righiandr@users.sourceforge.net>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Valdis.Kletnieks@vt.edu, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH] per-uid/gid I/O throttling (was Re: [RFC][PATCH] per-task I/O throttling)
Date: Fri, 11 Jan 2008 17:58:47 +0000 [thread overview]
Message-ID: <20080111175847.GA4016@ucw.cz> (raw)
In-Reply-To: <478CE41F.5010401@users.sourceforge.net>
On Tue 2008-01-15 17:49:36, Andrea Righi wrote:
> Allow to limit the I/O bandwidth for specific uid(s) or gid(s) imposing
> additional delays on those processes that exceed the limits defined in a
> configfs tree.
>
> Examples:
>
> Limit the I/O bandwidth for user www-data (UID 33) to 4MB/s:
>
> root@linux:/config/io-throttle# mkdir uid:33
> root@linux:/config/io-throttle# cd uid:33/
> root@linux:/config/io-throttle/uid:33# cat io-rate
> io-rate: 0 KiB/sec
> requested: 0 KiB
> last_request: 0 jiffies
> delta: 388202 jiffies
> root@linux:/config/io-throttle/uid:33# echo 4096 > io-rate
> root@linux:/config/io-throttle/uid:33# cat io-rate
> io-rate: 4096 KiB/sec
> requested: 0 KiB
> last_request: 389271 jiffies
> delta: 91 jiffies
>
> Limit the I/O bandwidth of group backup (GID 34) to 512KB/s:
Maybe ionice from cfq should be improved, instead?
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2008-01-23 12:48 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-10 22:45 [RFC][PATCH] per-task I/O throttling Andrea Righi
2008-01-11 1:50 ` Bill Davidsen
2008-01-11 10:28 ` Andrea Righi
2008-01-11 14:20 ` Peter Zijlstra
2008-01-11 15:29 ` Andrea Righi
2008-01-11 14:05 ` David Newall
2008-01-11 15:44 ` Andrea Righi
2008-01-16 19:21 ` David Newall
2008-01-11 15:59 ` Balbir Singh
2008-01-11 16:32 ` Andrea Righi
2008-01-12 4:57 ` Valdis.Kletnieks
2008-01-12 9:46 ` Peter Zijlstra
2008-01-12 10:57 ` Balbir Singh
2008-01-12 11:10 ` Peter Zijlstra
2008-01-12 18:01 ` Andrea Righi
2008-01-13 4:46 ` Balbir Singh
2008-01-15 16:49 ` [RFC][PATCH] per-uid/gid I/O throttling (was Re: [RFC][PATCH] per-task I/O throttling) Andrea Righi
2008-01-11 17:58 ` Pavel Machek [this message]
2008-01-23 15:41 ` Andrea Righi
2008-01-16 10:45 ` Balbir Singh
2008-01-16 11:30 ` Valdis.Kletnieks
2008-01-16 12:05 ` Balbir Singh
2008-01-16 12:24 ` Valdis.Kletnieks
2008-01-16 12:58 ` Andrea Righi
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