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 ...
Date: Thu, 5 Mar 2009 22:07:08 +0800 [thread overview]
Message-ID: <20090305140708.GA23369@localhost> (raw)
In-Reply-To: <20090305140125.GD646@ics.muni.cz>
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
WARNING: multiple messages have this Message-ID (diff)
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 ...
Date: Thu, 5 Mar 2009 22:07:08 +0800 [thread overview]
Message-ID: <20090305140708.GA23369@localhost> (raw)
In-Reply-To: <20090305140125.GD646@ics.muni.cz>
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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next prev parent reply other threads:[~2009-03-05 14:08 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-04 9:57 drop_caches Markus
2009-03-04 10:04 ` drop_caches Wu Fengguang
2009-03-04 10:32 ` drop_caches Markus
2009-03-04 11:05 ` drop_caches Wu Fengguang
2009-03-04 11:29 ` drop_caches Markus
2009-03-04 11:57 ` drop_caches Wu Fengguang
2009-03-04 11:57 ` drop_caches Wu Fengguang
2009-03-04 12:32 ` drop_caches Zdenek Kabelac
2009-03-04 12:32 ` drop_caches Zdenek Kabelac
2009-03-04 13:47 ` drop_caches Markus
2009-03-04 13:47 ` drop_caches Markus
2009-03-04 14:09 ` drop_caches Zdenek Kabelac
2009-03-04 14:09 ` drop_caches Zdenek Kabelac
2009-03-04 18:47 ` drop_caches Markus
2009-03-04 18:47 ` drop_caches Markus
2009-03-05 0:48 ` drop_caches Wu Fengguang
2009-03-05 0:48 ` drop_caches Wu Fengguang
2009-03-05 9:06 ` drop_caches Lukas Hejtmanek
2009-03-05 9:06 ` drop_caches Lukas Hejtmanek
2009-03-05 9:14 ` drop_caches KOSAKI Motohiro
2009-03-05 9:14 ` drop_caches KOSAKI Motohiro
2009-03-05 11:11 ` drop_caches Wu Fengguang
2009-03-05 11:11 ` drop_caches Wu Fengguang
2009-03-05 11:55 ` drop_caches Markus
2009-03-05 11:55 ` drop_caches Markus
2009-03-05 13:29 ` drop_caches Wu Fengguang
2009-03-05 14:05 ` drop_caches Markus
2009-03-05 14:05 ` drop_caches Markus
2009-03-05 14:22 ` drop_caches Wu Fengguang
2009-03-05 14:22 ` drop_caches Wu Fengguang
2009-03-05 14:43 ` drop_caches Markus
2009-03-05 14:43 ` drop_caches Markus
2009-03-05 14:52 ` drop_caches Wu Fengguang
2009-03-05 14:52 ` drop_caches Wu Fengguang
2009-03-05 13:36 ` drop_caches Wu Fengguang
2009-03-05 13:36 ` drop_caches Wu Fengguang
2009-03-05 13:45 ` drop_caches Lukas Hejtmanek
2009-03-05 13:45 ` drop_caches Lukas Hejtmanek
2009-03-05 13:48 ` drop_caches Wu Fengguang
2009-03-05 13:48 ` drop_caches Wu Fengguang
2009-03-05 13:50 ` drop_caches Markus
2009-03-05 13:50 ` drop_caches Markus
2009-03-05 14:01 ` drop_caches Lukas Hejtmanek
2009-03-05 14:01 ` drop_caches Lukas Hejtmanek
2009-03-05 14:07 ` Wu Fengguang [this message]
2009-03-05 14:07 ` drop_caches Wu Fengguang
-- strict thread matches above, loose matches on Subject: below --
2009-03-04 12:38 drop_caches Lukas Hejtmanek
2009-03-04 12:54 ` drop_caches Wu Fengguang
2009-03-04 12:54 ` drop_caches Wu Fengguang
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