linux-ext4 - Re: More testing: 4x parallel 2G writes, sequential reads

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Date:	Wed, 07 Nov 2007 21:39:33 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	Eric Sandeen <sandeen@...hat.com>,
	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: More testing: 4x parallel 2G writes, sequential reads

Andreas Dilger wrote:

> The test shows ext4 finishing marginally faster in the write case, and
> marginally slower in the read case.  What happens if you have 4 parallel
> readers?

http://people.redhat.com/esandeen/seekwatcher/ext4_4_thread_par_read.png
http://people.redhat.com/esandeen/seekwatcher/xfs_4_thread_par_read.png
http://people.redhat.com/esandeen/seekwatcher/ext4_xfs_4_thread_par_read.png

-Eric
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