Xen users - Oct 2008 - GPLPV 0.9.10 & 0.9.11.pre17/18 Network Issues

Hello,

 

I have been testing James'' GPLPV drivers and found excellent
performance
when using iperf but have been having issues when trying to download a
file from a shared folder on my Windows 2003 Enterprise HVM to any other
system whether it is linux or windows.

 

Basically my initial iperf tests were showing 937Mbits/sec down and
345Mbits/sec up but when I try to copy a 2GB file from the server to any
other machine on the LAN I am getting speeds around 30KB/s where a
physical box this will be replacing gets around 15MB/s.

 

These boxes are on the same VLAN and my config file and GPLPV driver
setup is identical to the steps in the WIKI.

 

Any ideas?

 

Tait Clarridge | Support Specialist - Business Systems Infrastructure |
Lavalife Corp | Toronto

tel 416.263.6300 ext 3898 | cell 416.569.6459 | fax 416.263.6301

 



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Never mind. I figured it out, for future reference if you are having the
same issues as below disable Checksum Offload and Large Send Offload on
the GPLPV drivers and the performance jumps from 30KB/s to 12MB/s.

-Tait

From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Tait
Clarridge
Sent: Thursday, October 16, 2008 1:24 PM
To: xen-users@lists.xensource.com
Subject: [Xen-users] GPLPV 0.9.10 & 0.9.11.pre17/18 Network Issues

Hello,

I have been testing James'' GPLPV drivers and found excellent
performance
when using iperf but have been having issues when trying to download a
file from a shared folder on my Windows 2003 Enterprise HVM to any other
system whether it is linux or windows.


Basically my initial iperf tests were showing 937Mbits/sec down and
345Mbits/sec up but when I try to copy a 2GB file from the server to any
other machine on the LAN I am getting speeds around 30KB/s where a
physical box this will be replacing gets around 15MB/s.

These boxes are on the same VLAN and my config file and GPLPV driver
setup is identical to the steps in the WIKI.

Any ideas?

Tait Clarridge | Support Specialist - Business Systems Infrastructure |
Lavalife Corp | Toronto
tel 416.263.6300 ext 3898 | cell 416.569.6459 | fax 416.263.6301



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Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users