On Thu, Nov 19, 2009 at 03:46:54PM +0530, Fasiha Ashraf wrote:
> Hi all
> I am using xen-3.4.1 with PV OS kernel 18.104.22.168 in FC11. When ever I try
> using a guest as web server to fetch its data from
different nodes I dont
> experience enough speed even using 1G link on both sides. After running
> different bench marks I have come to know that while using guest as a
> sender on 1G link throughput goes down.
> #wget http://10.11.21.113/VTS_04_1.VOB
> --2009-11-19 15:17:17-- http://10.11.21.113/VTS_04_1.VOB
> Connecting to 10.11.21.113:80... connected.
> HTTP request sent, awaiting response... 200 OK
> Length: 1073739776 (1024M) [text/plain]
> Saving to: `VTS_04_1.VOB'
0% [ ] 432,670 14.7K/s eta 13h
> 51m ^C
That sounds like you have problems with some network offloading
Have you tried for example this in the domU:
ethtool -K eth0 tx off
Does that help? If it doesn't, try playing with the other offloading
settings.. you can check them with "ethtool -k eth0".
Do you have errors in the dom0 dmesg?