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[Xen-users] More Windows network performace issues.

  • To: "xen-users mailing list" <Xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: John McMonagle <johnm@xxxxxxxxxxx>
  • Date: Thu, 14 Apr 2011 10:58:27 -0500
  • Cc:
  • Delivery-date: Thu, 14 Apr 2011 09:03:34 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Made considerable progress with networking problems.
New anti-virus and new gplpv driver helped a lot.

I'm still having poor speed to the external network.

Dom0 is debian squeeze using the debian dom0 kernel. Xen is 4.0.1 from source.

Tested domu windows in server 2008 with new gplpv drivers.
Reference debian pv domu is debian squeeze.
All are 64 bit.
External site is a xen dom0 as it's the fastest available.
All tests with iperf in Mbits/sec
Did each a few times and they were pretty consistent.
I put down the highest number.

domu server 2008 > dom0   618
domu server 2008 > external 280
domu server 2008 > domu squeeze  533
domu squeeze > dom0   4000
domu squeeze > external  923
dom0 > external   933

The one that concerns me is:
domu server 2008 > external 280

Need to access external file shares and that is quite a hit.
Why does a hvm domain take an additional hit in the bridging to the external 

Any ideas?


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