From: Eric Sandeen <sandeen@redhat.com>
To: ext4 development <linux-ext4@vger.kernel.org>
Subject: Re: delalloc fragmenting files?
Date: Mon, 29 Oct 2007 14:13:27 -0500 [thread overview]
Message-ID: <472630D7.4020606@redhat.com> (raw)
In-Reply-To: <47225B1E.2060708@redhat.com>
Eric Sandeen wrote:
> (note: times & rates look wrong to me, something is up with blktrace I
> think, but FIBMAP shouldn't lie about allocation)
CONFIG_NO_HZ was causing this... here are better graphs:
http://people.redhat.com/esandeen/seekwatcher/ext4-dd-write.png
http://people.redhat.com/esandeen/seekwatcher/xfs-dd-write.png
http://people.redhat.com/esandeen/seekwatcher/ext4-xfs-dd-write.png
http://people.redhat.com/esandeen/seekwatcher/ext4-dd-write-odirect.png
http://people.redhat.com/esandeen/seekwatcher/xfs-dd-write-odirect.png
http://people.redhat.com/esandeen/seekwatcher/ext4-xfs-dd-write-odirect.png
-Eric
prev parent reply other threads:[~2007-10-29 19:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-26 21:24 delalloc fragmenting files? Eric Sandeen
2007-10-26 22:19 ` Andreas Dilger
2007-10-27 2:54 ` Eric Sandeen
2007-10-27 3:08 ` Eric Sandeen
2007-10-31 21:01 ` Eric Sandeen
2007-11-01 0:35 ` Alex Tomas
2007-11-01 15:20 ` Eric Sandeen
2007-11-01 19:05 ` Eric Sandeen
2007-11-02 8:56 ` Alex Tomas
2007-11-02 15:41 ` Eric Sandeen
2007-11-04 18:36 ` Alex Tomas
2007-11-05 17:37 ` Eric Sandeen
2007-11-05 17:39 ` Eric Sandeen
2007-11-05 17:45 ` Alex Tomas
2007-11-05 18:51 ` Andreas Dilger
2007-11-05 18:54 ` Eric Sandeen
2007-11-06 19:54 ` Eric Sandeen
2007-11-07 20:37 ` Andreas Dilger
2007-11-07 20:53 ` Eric Sandeen
2007-10-29 19:13 ` Eric Sandeen [this message]
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