From: Bruce Guenter <lists-linux-ext4@bruce-guenter.dyndns.org>
To: linux-ext4@vger.kernel.org
Subject: Re: ext4 unlink performance
Date: Thu, 13 Nov 2008 13:10:00 -0600 [thread overview]
Message-ID: <20081113191000.GA11516@untroubled.org> (raw)
In-Reply-To: <20081113185712.GB11204@untroubled.org>
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On Thu, Nov 13, 2008 at 12:57:12PM -0600, Bruce Guenter wrote:
> Ouch. Why is ext4 so much slower than ext3 here,
I forgot to mention one important detail. I started running 'vmstat 5'
during one of the unlink runs, and noticed that there were intervals of
15 or 20 seconds where no blocks were being read or written, and minimal
CPU was being used. I do not observe the same stalls when using ext3.
--
Bruce Guenter <bruce@untroubled.org> http://untroubled.org/
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next prev parent reply other threads:[~2008-11-13 19:10 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-13 18:57 ext4 unlink performance Bruce Guenter
2008-11-13 19:10 ` Bruce Guenter [this message]
2008-11-13 20:42 ` Theodore Tso
2008-11-14 4:11 ` Bruce Guenter
2008-11-14 14:59 ` Theodore Tso
2008-11-14 15:48 ` Bruce Guenter
2008-11-14 15:54 ` Theodore Tso
2008-11-15 20:44 ` Bruce Guenter
2008-11-15 23:08 ` Eric Sandeen
2008-11-16 0:56 ` Theodore Tso
2008-11-16 3:38 ` Bruce Guenter
2008-11-17 0:43 ` Andreas Dilger
[not found] ` <20081119024021.GA10185@mit.edu>
2008-11-19 18:10 ` Andreas Dilger
2008-11-19 21:18 ` Theodore Tso
2008-11-20 22:49 ` Bruce Guenter
2008-11-13 19:46 ` Theodore Tso
2008-11-13 20:27 ` Bruce Guenter
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