From: Dave Chinner <david@fromorbit.com>
To: Chad Talbott <ctalbott@google.com>
Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
lsf@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org,
Curt Wohlgemuth <curtw@google.com>
Subject: Re: [Lsf] Preliminary Agenda and Activities for LSF
Date: Wed, 30 Mar 2011 15:18:02 +1100 [thread overview]
Message-ID: <20110330041802.GA20849@dastard> (raw)
In-Reply-To: <BANLkTinw+rOgtfP9WLXhAYydbLCZHgDGpw@mail.gmail.com>
On Tue, Mar 29, 2011 at 10:35:13AM -0700, Chad Talbott wrote:
> I'd like to propose a discussion topic:
>
> IO-less Dirty Throttling Considered Harmful...
>
> to isolation and cgroup IO schedulers in general.
Why is that, exactly? The current writeback infrastructure isn't
cgroup aware at all, so isn't that the problem you need to solve
first? i.e. how to delegate page cache writeback from
one context to anotheri and account for it correctly?
Once you solve that problem, triggering cgroup specific writeback
from the throttling code is the same regardless of whether we
are doing IO directly from the throttling code or via a separate
flusher thread. Hence I don't really understand why you think
IO-less throttling is really a problem.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2011-03-30 4:18 UTC|newest]
Thread overview: 138+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1301373398.2590.20.camel@mulgrave.site>
2011-03-29 5:14 ` [Lsf] Preliminary Agenda and Activities for LSF Amir Goldstein
2011-03-29 11:16 ` Ric Wheeler
2011-03-29 11:22 ` Matthew Wilcox
2011-03-29 12:17 ` Jens Axboe
2011-03-29 13:09 ` Martin K. Petersen
2011-03-29 13:12 ` Ric Wheeler
2011-03-29 13:38 ` James Bottomley
2011-03-29 17:20 ` Shyam_Iyer
2011-03-29 17:33 ` Vivek Goyal
2011-03-29 18:10 ` Shyam_Iyer
2011-03-29 18:45 ` Vivek Goyal
2011-03-29 19:13 ` Shyam_Iyer
2011-03-29 19:57 ` Vivek Goyal
2011-03-29 19:59 ` Mike Snitzer
2011-03-29 20:12 ` Shyam_Iyer
2011-03-29 20:23 ` Mike Snitzer
2011-03-29 23:09 ` Shyam_Iyer
2011-03-30 5:58 ` [Lsf] " Hannes Reinecke
2011-03-30 14:02 ` James Bottomley
2011-03-30 14:10 ` Hannes Reinecke
2011-03-30 14:26 ` James Bottomley
2011-03-30 14:55 ` Hannes Reinecke
2011-03-30 15:33 ` James Bottomley
2011-03-30 15:46 ` Shyam_Iyer
2011-03-30 20:32 ` Giridhar Malavali
2011-03-30 20:45 ` James Bottomley
2011-03-29 19:47 ` Nicholas A. Bellinger
2011-03-29 20:29 ` Jan Kara
2011-03-29 20:31 ` Ric Wheeler
2011-03-30 0:33 ` Mingming Cao
2011-03-30 2:17 ` Dave Chinner
2011-03-30 11:13 ` Theodore Tso
2011-03-30 11:28 ` Ric Wheeler
2011-03-30 14:07 ` Chris Mason
2011-04-01 15:19 ` Ted Ts'o
2011-04-01 16:30 ` Amir Goldstein
2011-04-01 21:46 ` Joel Becker
2011-04-02 3:26 ` Amir Goldstein
2011-04-01 21:43 ` Joel Becker
2011-03-30 21:49 ` Mingming Cao
2011-03-31 0:05 ` Matthew Wilcox
2011-03-31 1:00 ` Joel Becker
2011-04-01 21:34 ` Mingming Cao
2011-04-01 21:49 ` Joel Becker
2011-03-29 17:35 ` Chad Talbott
2011-03-29 19:09 ` Vivek Goyal
2011-03-29 20:14 ` Chad Talbott
2011-03-29 20:35 ` Jan Kara
2011-03-29 21:08 ` Greg Thelen
2011-03-30 4:18 ` Dave Chinner [this message]
2011-03-30 15:37 ` IO less throttling and cgroup aware writeback (Was: Re: [Lsf] Preliminary Agenda and Activities for LSF) Vivek Goyal
2011-03-30 22:20 ` Dave Chinner
2011-03-30 22:49 ` Chad Talbott
2011-03-31 3:00 ` Dave Chinner
2011-03-31 14:16 ` Vivek Goyal
2011-03-31 14:34 ` Chris Mason
2011-03-31 22:14 ` Dave Chinner
2011-03-31 23:43 ` Chris Mason
2011-04-01 0:55 ` Dave Chinner
2011-04-01 1:34 ` Vivek Goyal
2011-04-01 4:36 ` Dave Chinner
2011-04-01 6:32 ` [Lsf] IO less throttling and cgroup aware writeback (Was: " Christoph Hellwig
2011-04-01 7:23 ` Dave Chinner
2011-04-01 12:56 ` Christoph Hellwig
2011-04-21 15:07 ` Vivek Goyal
2011-04-01 14:49 ` IO less throttling and cgroup aware writeback (Was: Re: [Lsf] " Vivek Goyal
2011-03-31 22:25 ` Vivek Goyal
2011-03-31 14:50 ` [Lsf] IO less throttling and cgroup aware writeback (Was: " Greg Thelen
2011-03-31 22:27 ` Dave Chinner
2011-04-01 17:18 ` Vivek Goyal
2011-04-01 21:49 ` Dave Chinner
2011-04-02 7:33 ` Greg Thelen
2011-04-02 7:34 ` Greg Thelen
2011-04-05 13:13 ` Vivek Goyal
2011-04-05 22:56 ` Dave Chinner
2011-04-06 14:49 ` Curt Wohlgemuth
2011-04-06 15:39 ` Vivek Goyal
2011-04-06 19:49 ` Greg Thelen
2011-04-06 23:07 ` [Lsf] IO less throttling and cgroup aware writeback Greg Thelen
2011-04-06 23:36 ` Dave Chinner
2011-04-07 19:24 ` Vivek Goyal
2011-04-07 20:33 ` Christoph Hellwig
2011-04-07 21:34 ` Vivek Goyal
2011-04-07 23:42 ` Dave Chinner
2011-04-08 0:59 ` Greg Thelen
2011-04-08 1:25 ` Dave Chinner
2011-04-12 3:17 ` KAMEZAWA Hiroyuki
2011-04-08 13:43 ` Vivek Goyal
2011-04-06 23:08 ` [Lsf] IO less throttling and cgroup aware writeback (Was: Re: Preliminary Agenda and Activities for LSF) Dave Chinner
2011-04-07 20:04 ` Vivek Goyal
2011-04-07 23:47 ` Dave Chinner
2011-04-08 13:50 ` Vivek Goyal
2011-04-11 1:05 ` Dave Chinner
2011-04-06 15:37 ` Vivek Goyal
2011-04-06 16:08 ` Vivek Goyal
2011-04-06 17:10 ` Jan Kara
2011-04-06 17:14 ` Curt Wohlgemuth
2011-04-08 1:58 ` Dave Chinner
2011-04-19 14:26 ` Wu Fengguang
2011-04-06 23:50 ` Dave Chinner
2011-04-07 17:55 ` Vivek Goyal
2011-04-11 1:36 ` Dave Chinner
2011-04-15 21:07 ` Vivek Goyal
2011-04-16 3:06 ` Vivek Goyal
2011-04-18 21:58 ` Jan Kara
2011-04-18 22:51 ` cgroup IO throttling and filesystem ordered mode (Was: Re: [Lsf] IO less throttling and cgroup aware writeback (Was: Re: Preliminary Agenda and Activities for LSF)) Vivek Goyal
2011-04-19 0:33 ` Dave Chinner
2011-04-19 14:30 ` Vivek Goyal
2011-04-19 14:45 ` Jan Kara
2011-04-19 17:17 ` Vivek Goyal
2011-04-19 18:30 ` Vivek Goyal
2011-04-21 0:32 ` Dave Chinner
2011-04-21 0:29 ` Dave Chinner
2011-04-19 14:17 ` [Lsf] IO less throttling and cgroup aware writeback (Was: Re: Preliminary Agenda and Activities for LSF) Wu Fengguang
2011-04-19 14:34 ` Vivek Goyal
2011-04-19 14:48 ` Jan Kara
2011-04-19 15:11 ` Vivek Goyal
2011-04-19 15:22 ` Wu Fengguang
2011-04-19 15:31 ` Vivek Goyal
2011-04-19 16:58 ` Wu Fengguang
2011-04-19 17:05 ` Vivek Goyal
2011-04-19 20:58 ` Jan Kara
2011-04-20 1:21 ` Wu Fengguang
2011-04-20 10:56 ` Jan Kara
2011-04-20 11:19 ` Wu Fengguang
2011-04-20 14:42 ` Jan Kara
2011-04-20 1:16 ` Wu Fengguang
2011-04-20 18:44 ` Vivek Goyal
2011-04-20 19:16 ` Jan Kara
2011-04-21 0:17 ` Dave Chinner
2011-04-21 15:06 ` Wu Fengguang
2011-04-21 15:10 ` Wu Fengguang
2011-04-21 17:20 ` Vivek Goyal
2011-04-22 4:21 ` Wu Fengguang
2011-04-22 15:25 ` Vivek Goyal
2011-04-22 16:28 ` Andrea Arcangeli
2011-04-25 18:19 ` Vivek Goyal
2011-04-26 14:37 ` Vivek Goyal
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