linux-kernel - Re: [PATCH 2/2] writeback: Adding pages_dirtied and pages_entered

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Date:	Fri,  6 Aug 2010 08:56:20 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Michael Rubin <mrubin@...gle.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org, jack@...e.cz, david@...morbit.com, hch@....de,
	axboe@...nel.dk
Subject: Re: [PATCH 2/2] writeback: Adding pages_dirtied and  pages_entered_writeback

> On Thu, Aug 5, 2010 at 1:24 PM, Andrew Morton <akpm@...ux-foundation.org> wrote:
> > On Wed,  4 Aug 2010 17:43:24 -0700
> > Michael Rubin <mrubin@...gle.com> wrote:
> > Wait.  These counters appear in /proc/vmstat.  So why create standalone
> > /proc/sys/vm files as well?
> 
> I did not know they would show up in /proc/vmstat.
> 
> I thought it made sense to put them in /proc/sys/vm since the other
> writeback controls are there.
> but have no problems just adding them to /prov/vmstat if that makes more sense.

?

/proc/vmstat already have both.

cat /proc/vmstat |grep nr_dirty
cat /proc/vmstat |grep nr_writeback

Also, /sys/devices/system/node/node0/meminfo show per-node stat.

Perhaps, I'm missing your point.


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