From: Simon Jeons <simon.jeons@gmail.com>
To: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
hughd@google.com, riel@redhat.com,
Johannes Weiner <hannes@cmpxchg.org>,
mtk.manpages@gmail.com, Fengguang Wu <fengguang.wu@intel.com>
Subject: fadvise doesn't work well.
Date: Wed, 09 Jan 2013 02:05:21 -0600 [thread overview]
Message-ID: <1357718721.6568.3.camel@kernel.cn.ibm.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 16 bytes --]
In attanchment.
[-- Attachment #2: 11 --]
[-- Type: text/plain, Size: 1929 bytes --]
root@kernel:~/Documents/mm/tools/linux-ftools# dd if=../../../images/ubuntu-11.04-desktop-i386.iso of=/tmpfs
1403484+0 records in
1403484+0 records out
718583808 bytes (719 MB) copied, 19.5054 s, 36.8 MB/s
root@kernel:~/Documents/mm/tools/linux-ftools# ./linux-fincore -s ../../../images/ubuntu-11.04-desktop-i386.iso
filename size total_pages min_cached page cached_pages cached_size cached_perc
-------- ---- ----------- --------------- ------------ ----------- -----------
../../../images/ubuntu-11.04-desktop-i386.iso 718583808 175436 0 175436 718585856 100.00
---
total cached size: 718585856
root@kernel:~/Documents/mm/tools/linux-ftools# ./linux-fadvise ../../../images/ubuntu-11.04-desktop-i386.iso DONTNEED 0,718585856
Going to fadvise ../../../images/ubuntu-11.04-desktop-i386.iso as mode DONTNEED
offset: 0
length: 718583808
Invalid mode DONTNEED
root@kernel:~/Documents/mm/tools/linux-ftools# ./linux-fincore -s ../../../images/ubuntu-11.04-desktop-i386.iso
filename size total_pages min_cached page cached_pages cached_size cached_perc
-------- ---- ----------- --------------- ------------ ----------- -----------
../../../images/ubuntu-11.04-desktop-i386.iso 718583808 175436 0 175436 718585856 100.00
---
total cached size: 718585856
next reply other threads:[~2013-01-09 8:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-09 8:05 Simon Jeons [this message]
2013-01-09 8:09 ` fadvise doesn't work well Fengguang Wu
2013-01-09 8:18 ` Simon Jeons
2013-01-09 8:23 ` Fengguang Wu
2013-01-09 8:26 ` Fengguang Wu
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=1357718721.6568.3.camel@kernel.cn.ibm.com \
--to=simon.jeons@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=fengguang.wu@intel.com \
--cc=hannes@cmpxchg.org \
--cc=hughd@google.com \
--cc=linux-mm@kvack.org \
--cc=mtk.manpages@gmail.com \
--cc=riel@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.