From: Wu Fengguang <fengguang.wu@intel.com>
To: Markus <M4rkusXXL@web.de>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Zdenek Kabelac <zkabelac@redhat.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Lukas Hejtmanek <xhejtman@ics.muni.cz>
Subject: Re: drop_caches ...
Date: Thu, 5 Mar 2009 21:36:03 +0800 [thread overview]
Message-ID: <20090305133603.GA22442@localhost> (raw)
In-Reply-To: <200903051255.35407.M4rkusXXL@web.de>
Hi Markus,
On Thu, Mar 05, 2009 at 01:55:35PM +0200, Markus wrote:
> > Markus, you may want to try this patch, it will have better chance to figure out
> > the hidden file pages.
> >
> > 1) apply the patch and recompile kernel with CONFIG_PROC_FILECACHE=m
> > 2) after booting:
> > modprobe filecache
> > cp /proc/filecache filecache-`date +'%F'`
> > 3) send us the copied file, it will list all cached files, including
> > the normally hidden ones.
>
> The file consists of 674 lines. If I interpret it right, "size" is the
> 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).
Thanks,
Fengguang
WARNING: multiple messages have this Message-ID (diff)
From: Wu Fengguang <fengguang.wu@intel.com>
To: Markus <M4rkusXXL@web.de>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Zdenek Kabelac <zkabelac@redhat.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Lukas Hejtmanek <xhejtman@ics.muni.cz>
Subject: Re: drop_caches ...
Date: Thu, 5 Mar 2009 21:36:03 +0800 [thread overview]
Message-ID: <20090305133603.GA22442@localhost> (raw)
In-Reply-To: <200903051255.35407.M4rkusXXL@web.de>
Hi Markus,
On Thu, Mar 05, 2009 at 01:55:35PM +0200, Markus wrote:
> > Markus, you may want to try this patch, it will have better chance to figure out
> > the hidden file pages.
> >
> > 1) apply the patch and recompile kernel with CONFIG_PROC_FILECACHE=m
> > 2) after booting:
> > modprobe filecache
> > cp /proc/filecache filecache-`date +'%F'`
> > 3) send us the copied file, it will list all cached files, including
> > the normally hidden ones.
>
> The file consists of 674 lines. If I interpret it right, "size" is the
> 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).
Thanks,
Fengguang
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2009-03-05 13:37 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 ` Wu Fengguang [this message]
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 ` drop_caches Wu Fengguang
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090305133603.GA22442@localhost \
--to=fengguang.wu@intel.com \
--cc=M4rkusXXL@web.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=xhejtman@ics.muni.cz \
--cc=zkabelac@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.