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: Sat, 22 Feb 2003 00:10:46 -0800 [thread overview]
Message-ID: <25510000.1045901445@[10.10.2.4]> (raw)
In-Reply-To: <20030222000410.11a46e03.akpm@digeo.com>
> OK. We used to only run mark_inode_dirty() for atime updates just when it
> had actually changed. ie: once per second. But for reasons which remain
> obscure that was taken out.
>
> This probably explains your ext3 woes. Poor old ext3 has to do a ton of work
> in ext3_mark_inode_dirty(), yet on 99% of the calls, nothing has even
> changed. Which is why I suggested that you retest ext3 with noatime.
Shall do - tommorow ;-)
> I shall fix it up.
Sounds great - thank you,
M.
next prev parent reply other threads:[~2003-02-22 8:00 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
2003-02-22 8:04 ` Andrew Morton
2003-02-22 8:10 ` Martin J. Bligh [this message]
2003-02-19 17:19 Martin J. Bligh
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