From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx146.postini.com [74.125.245.146]) by kanga.kvack.org (Postfix) with SMTP id BDFF96B0062 for ; Wed, 9 Jan 2013 03:05:26 -0500 (EST) Received: by mail-pa0-f54.google.com with SMTP id bi5so870796pad.27 for ; Wed, 09 Jan 2013 00:05:26 -0800 (PST) Message-ID: <1357718721.6568.3.camel@kernel.cn.ibm.com> Subject: fadvise doesn't work well. From: Simon Jeons Date: Wed, 09 Jan 2013 02:05:21 -0600 Content-Type: multipart/mixed; boundary="=-EahHfBXECsKMsFjnnEWe" Mime-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: Andrew Morton , hughd@google.com, riel@redhat.com, Johannes Weiner , mtk.manpages@gmail.com, Fengguang Wu --=-EahHfBXECsKMsFjnnEWe Content-Type: text/plain Content-Transfer-Encoding: 7bit In attanchment. --=-EahHfBXECsKMsFjnnEWe Content-Disposition: attachment; filename="11" Content-Type: text/plain; name="11"; charset="UTF-8" Content-Transfer-Encoding: 7bit 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 --=-EahHfBXECsKMsFjnnEWe-- -- 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: email@kvack.org