Message-ID: <4C6DAC15.7040004@redhat.com>
Date: Thu, 19 Aug 2010 18:11:33 -0400
From: Rik van Riel <riel@redhat.com>
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To: Michael Rubin <mrubin@google.com>
CC: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        linux-mm@kvack.org, jack@suse.cz, akpm@linux-foundation.org,
        david@fromorbit.com, npiggin@suse.de, hch@lst.de, axboe@kernel.dk
Subject: Re: [PATCH 0/3] writeback: kernel visibility
References: <1282251447-16937-1-git-send-email-mrubin@google.com>
In-Reply-To: <1282251447-16937-1-git-send-email-mrubin@google.com>
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On 08/19/2010 04:57 PM, Michael Rubin wrote:
> Patch #1 sets up some helper functions for accounting.
>
> Patch #2 adds writeback visibility in /proc/sys/vm.
>
> To help developers and applications gain visibility into writeback
> behaviour adding two read-only sysctl files into /proc/sys/vm.
> These files allow user apps to understand writeback behaviour over time
> and learn how it is impacting their performance.
>
>   # cat /proc/sys/vm/pages_dirtied
>   3747
>   # cat /proc/sys/vm/pages_entered_writeback
>   3618

Would it be better to have these values in /proc/vmstat
and /proc/zoneinfo ?

I don't really see why they need to be in /proc/sys
at all...

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