From: Lukas Hejtmanek <xhejtman@ics.muni.cz>
To: Pavel Machek <pavel@ucw.cz>
Cc: linux-kernel@vger.kernel.org, zdenek.kabelac@gmail.com
Subject: Re: Disk schedulers
Date: Wed, 20 Feb 2008 19:48:42 +0100 [thread overview]
Message-ID: <20080220184842.GA4867@ics.muni.cz> (raw)
In-Reply-To: <20080216172048.GB3979@ucw.cz>
On Sat, Feb 16, 2008 at 05:20:49PM +0000, Pavel Machek wrote:
> Is cat /dev/zero > file enough to reproduce this?
yes.
> ext3 filesystem?
yes.
> Will cat /etc/passwd work while machine is unresponsive?
yes.
while find does not work:
time find /
/
/etc
/etc/manpath.config
/etc/update-manager
/etc/update-manager/release-upgrades
/etc/gshadow-
/etc/inputrc
/etc/openalrc
/etc/bonobo-activation
/etc/bonobo-activation/bonobo-activation-config.xml
/etc/gnome-vfs-2.0
/etc/gnome-vfs-2.0/modules
/etc/gnome-vfs-2.0/modules/obex-module.conf
/etc/gnome-vfs-2.0/modules/extra-modules.conf
/etc/gnome-vfs-2.0/modules/theme-method.conf
/etc/gnome-vfs-2.0/modules/font-method.conf
/etc/gnome-vfs-2.0/modules/default-modules.conf
^C
real 0m7.982s
user 0m0.003s
sys 0m0.000s
i.e., it took 8 seconds to list just 17 dir entries.
It looks like I have this problem:
http://www.linuxinsight.com/first_benchmarks_of_the_ext4_file_system.html#comment-619
(the last comment with title: Sustained writes 2 or more times the amount of
memfree....)
--
Lukáš Hejtmánek
next prev parent reply other threads:[~2008-02-20 18:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-14 16:21 Disk schedulers Lukas Hejtmanek
2008-02-15 0:02 ` Tejun Heo
2008-02-15 10:09 ` Lukas Hejtmanek
2008-02-15 14:42 ` Jan Engelhardt
2008-02-15 14:57 ` Prakash Punnoor
2008-02-15 17:11 ` Zan Lynx
2008-02-15 21:32 ` FD Cami
2008-02-16 16:13 ` Lukas Hejtmanek
2008-02-20 17:04 ` Zdenek Kabelac
2008-02-15 15:59 ` Lukas Hejtmanek
2008-02-15 16:22 ` Jeffrey E. Hundstad
2008-02-15 17:36 ` Roger Heflin
2008-02-15 17:24 ` Paulo Marques
2008-02-16 16:15 ` Lukas Hejtmanek
2008-02-16 17:20 ` Pavel Machek
2008-02-20 18:48 ` Lukas Hejtmanek [this message]
2008-02-21 23:50 ` Giuliano Pochini
2008-02-17 19:38 ` Linda Walsh
2008-02-28 17:14 ` Bill Davidsen
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