From: "Jan Kundrát" <jan.kundrat@fzu.cz>
To: Anthony Liguori <aliguori@us.ibm.com>,
xen-devel <xen-devel@lists.sourceforge.net>
Subject: Re: poor I/O performance on domU
Date: Sat, 15 Jan 2005 15:36:45 +0100 [thread overview]
Message-ID: <41E92A7D.9070405@fzu.cz> (raw)
In-Reply-To: <1105637082.25283.12.camel@localhost>
Anthony Liguori wrote:
> Is /dev/hda what dom0 is mounted from? If so, can you try the test
> again with a neutral partition (one that neither has mounted)?
yes, dom0 filesystems are on partitions located on hda.
I've tried exporting /dev/hda7 (not used neither mounted from dom0) as
sdb7 and I can get about 12.3 MB/s. From dom0 I get about 14.8 MB/s.
Tested by `time dd if=/dev/{s|h}hda7 of=/dev/null bs=1M`, about 4.5GB of
data.
-jkt
--
cd /local/pub && more beer > /dev/mouth
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next prev parent reply other threads:[~2005-01-15 14:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-13 16:06 poor I/O performance on domU Jan Kundrát
2005-01-13 17:00 ` Anthony Liguori
2005-01-13 17:08 ` Jan Kundrát
[not found] ` <1105637082.25283.12.camel@localhost>
2005-01-15 14:36 ` Jan Kundrát [this message]
2005-01-17 16:00 ` Anthony Liguori
2005-01-17 16:23 ` Jan Kundrát
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