From: Wu Fengguang <fengguang.wu@intel.com>
To: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, Zdenek Kabelac <zkabelac@redhat.com>
Subject: Re: drop_caches ...
Date: Wed, 4 Mar 2009 20:54:25 +0800 [thread overview]
Message-ID: <20090304125425.GA20435@localhost> (raw)
In-Reply-To: <20090304123836.GA13706@ics.muni.cz>
On Wed, Mar 04, 2009 at 02:38:36PM +0200, Lukas Hejtmanek wrote:
> Hello,
>
> > So you don't have lots of mapped pages(Mapped=51M) or tmpfs files. It's
> > strange to me that there are so many undroppable cached pages(Cached=359M),
> > and most of them lie out of the LRU queue(Active+Inactive file=53M)...
>
> > Anyone have better clues on these 'hidden' pages?
>
> I think he is simply using Intel driver + GEM + UXA = TONS of drm mm objects
> in tmpfs which is 'hidden' unless you have /proc/filecache to see them.
Ah I was about to ask him to try filecache before you and Zdenek kick in.
I was expecting the shm pages to be accounted in /dev/shm, however the
GEM shm pages are allocated from an in-kernel tmpfs mount...
And I noticed in filecache that you are compiling your own
/usr/local/drm/lib/libdrm_intel.so.1.0.0, now I know what are you doing ;-)
Good job, Lukas!
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 parent reply other threads:[~2009-03-04 12:55 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090304123836.GA13706@ics.muni.cz>
2009-03-04 12:54 ` Wu Fengguang [this message]
[not found] <200903041057.34072.M4rkusXXL@web.de>
[not found] ` <200903041132.04451.M4rkusXXL@web.de>
[not found] ` <20090304110558.GA17014@localhost>
[not found] ` <200903041229.41482.M4rkusXXL@web.de>
2009-03-04 11:57 ` drop_caches Wu Fengguang
2009-03-04 12:32 ` drop_caches Zdenek Kabelac
2009-03-04 13:47 ` drop_caches Markus
2009-03-04 14:09 ` drop_caches Zdenek Kabelac
2009-03-04 18:47 ` drop_caches Markus
2009-03-05 0:48 ` drop_caches Wu Fengguang
2009-03-05 9:06 ` drop_caches Lukas Hejtmanek
2009-03-05 9:14 ` drop_caches KOSAKI Motohiro
2009-03-05 11:11 ` drop_caches Wu Fengguang
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 14:22 ` drop_caches Wu Fengguang
2009-03-05 14:43 ` drop_caches Markus
2009-03-05 14:52 ` 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 13:48 ` drop_caches Wu Fengguang
2009-03-05 13:50 ` drop_caches Markus
2009-03-05 14:01 ` drop_caches Lukas Hejtmanek
2009-03-05 14:07 ` 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=20090304125425.GA20435@localhost \
--to=fengguang.wu@intel.com \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox