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From: Peter Zijlstra <peterz@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: David Rientjes <rientjes@google.com>,
	cl@linux-foundation.org, npiggin@suse.de, menage@google.com,
	dfults@sgi.com, linux-kernel@vger.kernel.org
Subject: Re: [patch 0/7] cpuset writeback throttling
Date: Tue, 04 Nov 2008 21:53:08 +0100	[thread overview]
Message-ID: <1225831988.7803.1939.camel@twins> (raw)
In-Reply-To: <20081104124753.fb1dde5a.akpm@linux-foundation.org>

On Tue, 2008-11-04 at 12:47 -0800, Andrew Morton wrote:
> On Thu, 30 Oct 2008 12:23:10 -0700 (PDT)
> David Rientjes <rientjes@google.com> wrote:
> 
> > This is the revised cpuset writeback throttling patchset
> 
> I'm all confused about why this is a cpuset thing rather than a cgroups
> thing.  What are the relationships here?
> 
> I mean, writeback throttling _should_ operate upon a control group
> (more specifically: a memcg), yes?  I guess you're assuming a 1:1
> relationship here?

I think the main reason is that we have per-node vmstats so the cpuset
extention is relatively easy. Whereas we do not currently maintain
vmstats on a cgroup level - although I imagine that could be remedied.

  reply	other threads:[~2008-11-04 20:52 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-30 19:23 David Rientjes
2008-10-30 19:23 ` [patch 1/7] cpusets: add dirty map to struct address_space David Rientjes
2008-11-04 21:09   ` Andrew Morton
2008-11-04 21:20     ` Christoph Lameter
2008-11-04 21:42       ` Andrew Morton
2008-10-30 19:23 ` [patch 2/7] pdflush: allow the passing of a nodemask parameter David Rientjes
2008-10-30 19:23 ` [patch 3/7] mm: make page writeback obey cpuset constraints David Rientjes
2008-10-30 19:23 ` [patch 4/7] mm: cpuset aware reclaim writeout David Rientjes
2008-10-30 19:23 ` [patch 5/7] mm: throttle writeout with cpuset awareness David Rientjes
2008-10-30 19:23 ` [patch 6/7] cpusets: per cpuset dirty ratios David Rientjes
2008-10-30 19:23 ` [patch 7/7] cpusets: update documentation for writeback throttling David Rientjes
2008-10-30 21:08 ` [patch 0/7] cpuset " Dave Chinner
2008-10-30 21:33   ` Christoph Lameter
2008-10-30 22:03     ` Dave Chinner
2008-10-31 13:47       ` Christoph Lameter
2008-10-31 16:36       ` David Rientjes
2008-11-04 20:47 ` Andrew Morton
2008-11-04 20:53   ` Peter Zijlstra [this message]
2008-11-04 20:58     ` Christoph Lameter
2008-11-04 21:10     ` David Rientjes
2008-11-04 21:16     ` Andrew Morton
2008-11-04 21:21       ` Peter Zijlstra
2008-11-04 21:50         ` Andrew Morton
2008-11-04 22:17           ` Christoph Lameter
2008-11-04 22:35             ` Andrew Morton
2008-11-04 22:52               ` Christoph Lameter
2008-11-04 23:36                 ` Andrew Morton
2008-11-05  1:31                   ` KAMEZAWA Hiroyuki
2008-11-05  3:09                     ` Andrew Morton
2008-11-05  2:45                   ` Christoph Lameter
2008-11-05  3:05                     ` Andrew Morton
2008-11-05  4:31                       ` KAMEZAWA Hiroyuki
2008-11-10  9:02                         ` Andrea Righi
2008-11-10 10:02                           ` David Rientjes
2008-11-05 13:52                       ` Christoph Lameter
2008-11-05 18:41                         ` Andrew Morton
2008-11-05 20:21                           ` Christoph Lameter
2008-11-05 20:31                             ` Andrew Morton
2008-11-05 20:40                               ` Christoph Lameter
2008-11-05 20:56                                 ` Andrew Morton
2008-11-05 21:28                                   ` Christoph Lameter
2008-11-05 21:55                                   ` Paul Menage
2008-11-05 22:04                                   ` David Rientjes
2008-11-06  1:34                                     ` KAMEZAWA Hiroyuki
2008-11-06 20:35                                       ` David Rientjes

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