From: "Martin J. Bligh" <mbligh@aracnet.com>
To: Andrew Morton <akpm@digeo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Strange performance change 59 -> 61/62
Date: Fri, 21 Feb 2003 23:46:16 -0800 [thread overview]
Message-ID: <22560000.1045899976@[10.10.2.4]> (raw)
In-Reply-To: <20030221122024.040055a0.akpm@digeo.com>
> mark_inode_dirty() tends to be called _very_ frequently. Too frequently.
>
> Could you try remounting all filesystems noatime with
>
> mount /mnt/point -o remount,noatime
>
> and the below patch will prevent us calling the barrier-happy
> current_kernel_time() for noatime mounts.
Cool, that works nicely - thanks.
2.5.59-mjb6: 84 __mark_inode_dirty
2.5.61-mjb1: 594 __mark_inode_dirty
2.5.61-mjb1-no_mb: 74 __mark_inode_dirty
2.5.61-mjb1-noatime: 65 __mark_inode_dirty
M.
next prev parent reply other threads:[~2003-02-22 7:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-19 16:23 Martin J. Bligh
2003-02-19 18:19 ` Andrew Morton
2003-02-21 7:19 ` Martin J. Bligh
2003-02-21 7:28 ` Martin J. Bligh
2003-02-21 7:45 ` Andrew Morton
2003-02-21 17:27 ` Martin J. Bligh
2003-02-21 20:20 ` Andrew Morton
2003-02-22 7:46 ` Martin J. Bligh [this message]
2003-02-22 8:04 ` Andrew Morton
2003-02-22 8:10 ` Martin J. Bligh
2003-02-19 17:19 Martin J. Bligh
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