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Re: [Xen-devel] 4.2.1: Poor write performance for DomU.

  • To: xen-devel@xxxxxxxxxxxxx
  • From: Steven Haigh <netwiz@xxxxxxxxx>
  • Date: Sun, 24 Mar 2013 20:54:58 +1100
  • Delivery-date: Sun, 24 Mar 2013 09:55:47 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 24/03/13 20:10, Steven Haigh wrote:
So my wonder is now... Why when put in a RAID6 do we have a 180Mb/sec+
from the Dom0, but only 50Mb/sec from the DomU of the same filesystem...

I should actually clarify that this is 180Mb/sec write speed from the Dom0 and 50Mb/sec from the DomU. Really not quite sure why this is.

The filesystem in question is XFS - the tests in my previous post were on ext4.

Any further testing that may indicate something?

Steven Haigh

Email: netwiz@xxxxxxxxx
Web: https://www.crc.id.au
Phone: (03) 9001 6090 - 0412 935 897
Fax: (03) 8338 0299

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