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From: Con Kolivas <kernel@kolivas.org>
To: sekharan@us.ibm.com
Cc: balbir@in.ibm.com, dev@openvz.org, Andrew Morton <akpm@osdl.org>,
	Srivatsa <vatsa@in.ibm.com>, Sam Vilain <sam@vilain.net>,
	ckrm-tech@lists.sourceforge.net,
	Balbir Singh <bsingharora@gmail.com>,
	Mike Galbraith <efault@gmx.de>,
	Peter Williams <pwil3058@bigpond.net.au>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Kingsley Cheung <kingsley@aurema.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Ingo Molnar <mingo@elte.hu>,
	Rene Herman <rene.herman@keyaccess.nl>,
	Jens Axboe <axboe@suse.de>
Subject: Re: sched: Add CPU rate hard caps
Date: Fri, 2 Jun 2006 10:36:15 +1000	[thread overview]
Message-ID: <200606021036.17021.kernel@kolivas.org> (raw)
In-Reply-To: <1149187413.13336.24.camel@linuxchandra>

On Friday 02 June 2006 04:43, Chandra Seetharaman wrote:
> On Thu, 2006-06-01 at 14:04 +0530, Balbir Singh wrote:
> > > - disk I/O bandwidth:
> > > we started to use CFQv2, but it is quite poor in this regard. First, it
> > > doesn't prioritizes writes and async disk operations :( And even for
> > > sync reads we found some problems we work on now...
>
> CKRM (on e-series) had an implementation based on a modified CFQ
> scheduler. Shailabh is currently working on porting that controller to
> f-series.

I hope that the changes you have to improve CFQ were done in a way that is 
suitable for mainline and you're planning to try and merge them there.

-- 
-ck

  parent reply	other threads:[~2006-06-02  0:38 UTC|newest]

Thread overview: 95+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-26  4:20 [RFC 0/5] sched: Add CPU rate caps Peter Williams
2006-05-26  4:20 ` [RFC 1/5] sched: Fix priority inheritence before CPU rate soft caps Peter Williams
2006-05-26  4:20 ` [RFC 2/5] sched: Add " Peter Williams
2006-05-26 10:48   ` Con Kolivas
2006-05-26 11:15     ` Mike Galbraith
2006-05-26 11:17       ` Con Kolivas
2006-05-26 11:30         ` Mike Galbraith
2006-05-26 13:55     ` Peter Williams
2006-05-27  6:31   ` Balbir Singh
2006-05-27  7:03     ` Peter Williams
2006-05-28  0:11       ` Peter Williams
2006-05-28  7:38         ` Balbir Singh
2006-05-28 13:35           ` Peter Williams
2006-05-28 14:42             ` Balbir Singh
2006-05-28 23:27               ` Peter Williams
2006-05-31 13:17                 ` Kirill Korotaev
2006-05-31 23:39                   ` Peter Williams
2006-06-01  8:09                     ` Kirill Korotaev
2006-06-01 23:38                       ` Peter Williams
2006-06-02  1:35                         ` Peter Williams
2006-05-26  4:20 ` [RFC 3/5] sched: Add CPU rate hard caps Peter Williams
2006-05-26  6:58   ` Kari Hurtta
2006-05-27  1:00     ` Peter Williams
2006-05-26 11:00   ` Con Kolivas
2006-05-26 13:59     ` Peter Williams
2006-05-26 14:12       ` Con Kolivas
2006-05-26 14:23       ` Mike Galbraith
2006-05-27  0:16         ` Peter Williams
2006-05-27  9:28           ` Mike Galbraith
2006-05-28  2:09             ` Peter Williams
2006-05-27  6:48   ` Balbir Singh
2006-05-27  8:44     ` Peter Williams
2006-05-31 13:10       ` Kirill Korotaev
2006-05-31 15:59         ` Balbir Singh
2006-05-31 18:09           ` Mike Galbraith
2006-06-01  7:41           ` Kirill Korotaev
2006-06-01  8:34             ` Balbir Singh
2006-06-01 18:43               ` [ckrm-tech] " Chandra Seetharaman
2006-06-01 23:26                 ` Peter Williams
2006-06-02  2:02                   ` Chandra Seetharaman
2006-06-02  3:21                     ` Peter Williams
2006-06-02  8:32                       ` Balbir Singh
2006-06-02 13:30                         ` Peter Williams
2006-06-02 18:58                           ` Balbir Singh
2006-06-02 23:49                             ` Peter Williams
2006-06-03  4:59                               ` Balbir Singh
2006-06-02 19:06                       ` Chandra Seetharaman
2006-06-03  0:04                         ` Peter Williams
2006-06-02  0:36                 ` Con Kolivas [this message]
2006-06-02  2:03                   ` [ckrm-tech] " Chandra Seetharaman
2006-06-02  5:55                 ` [ckrm-tech] [RFC 3/5] " Peter Williams
2006-06-02  7:47                   ` Kirill Korotaev
2006-06-02 13:34                     ` Peter Williams
2006-06-05 22:11                     ` Sam Vilain
2006-06-06  8:24                       ` Kirill Korotaev
2006-06-06  9:13                         ` Con Kolivas
2006-06-06  9:28                           ` Kirill Korotaev
2006-06-02  8:46                   ` Mike Galbraith
2006-06-02 13:18                     ` Peter Williams
2006-06-02 14:47                       ` Mike Galbraith
2006-06-03  0:08                         ` Peter Williams
2006-06-03  6:02                           ` Mike Galbraith
2006-06-03 11:03                             ` Peter Williams
2006-06-06 11:26                         ` Srivatsa Vaddagiri
2006-06-02  7:34                 ` Kirill Korotaev
2006-06-02 21:23                   ` Shailabh Nagar
2006-06-01 23:47               ` Sam Vilain
2006-06-01 23:43           ` Peter Williams
2006-05-31 23:28         ` Peter Williams
2006-06-01  7:44           ` Kirill Korotaev
2006-06-01 23:21             ` Peter Williams
2006-05-26  4:21 ` [RFC 4/5] sched: Add procfs interface for CPU rate soft caps Peter Williams
2006-05-26  4:21 ` [RFC 5/5] sched: Add procfs interface for CPU rate hard caps Peter Williams
2006-05-26  8:04 ` [RFC 0/5] sched: Add CPU rate caps Mike Galbraith
2006-05-26 16:11   ` Björn Steinbrink
2006-05-28 22:46     ` Sam Vilain
2006-05-28 23:30       ` Peter Williams
2006-05-29  3:09         ` Sam Vilain
2006-05-29  3:41           ` Peter Williams
2006-05-29 21:16             ` Sam Vilain
2006-05-29 23:12               ` Peter Williams
2006-05-30  2:07                 ` Sam Vilain
2006-05-30  2:45                   ` Peter Williams
2006-05-30 22:05                     ` Sam Vilain
2006-05-30 23:22                       ` Peter Williams
2006-05-30 23:25                       ` Peter Williams
2006-06-05 23:56                       ` Peter Williams
2006-05-27  0:16   ` Peter Williams
2006-05-26 10:41 ` Con Kolivas
2006-05-27  1:28   ` Peter Williams
2006-05-27  1:42     ` Con Kolivas
2006-05-26 11:09 ` Con Kolivas
2006-05-26 14:00   ` Peter Williams
2006-05-26 11:29 ` Balbir Singh
2006-05-27  1:40   ` Peter Williams

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