Date: Thu, 5 Mar 2009 22:07:08 +0800
From: Wu Fengguang <fengguang.wu@intel.com>
To: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Cc: Markus <M4rkusXXL@web.de>,
       "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
       Zdenek Kabelac <zkabelac@redhat.com>,
       "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: drop_caches ...
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References: <200903041057.34072.M4rkusXXL@web.de> <200903041947.41542.M4rkusXXL@web.de> <20090305004850.GA6045@localhost> <200903051255.35407.M4rkusXXL@web.de> <20090305133603.GA22442@localhost> <20090305140125.GD646@ics.muni.cz>
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On Thu, Mar 05, 2009 at 04:01:25PM +0200, Lukas Hejtmanek wrote:
> On Thu, Mar 05, 2009 at 09:36:03PM +0800, Wu Fengguang wrote:
> > > filesize and "cached" the amount of the file being in cache (why can 
> > > this be bigger than the file?!).
> > 
> >           size = file size in bytes
> >         cached = cached pages
> > 
> > So it's normal that (size > cached).
> 
> and one more thing. It seems that at least in the version of filecache I have,
> the size and cached are in kB rather than in B.

Ah sorry for the confusion, it is in KB: DIV_ROUND_UP(size, 1024).
It may be better to simply use bytes though.

Thanks,
Fengguang

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