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Re: [Xen-users] Slow windows network with gplpv driver.

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Slow windows network with gplpv driver.
From: John McMonagle <johnm@xxxxxxxxxxx>
Date: Wed, 9 Mar 2011 10:29:33 -0600
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On Friday, March 04, 2011 02:32:25 pm John McMonagle wrote:
> On Thursday 03 March 2011 09:13:39 pm John McMonagle wrote:
> > On Thursday, March 03, 2011 05:57:21 pm you wrote:

> > > > Just did a test with 32 bit xp with 0.11.0.238 drive.
> > > > it show device as Xen Net device driver.
> > > > 
> > > > Iperf gives 14.7 Mbits/sec
> > > > 
> > > > Running an xp live boot cd  get 13.6 Mbits/sec
> > > > Doesn't looks like the the pv driver is doing anything to help the

> 
> I tried on a AMD server  and it was about the same percentage improvement.
> The only thing that had any noticeable affect was stopping the windows
> firewall.
> Had no change with  /PATCHTPR or  disable checksum offloading and large
> send offloading.
> 
> The application seemed a bit more responsive I'll see what the users say.
> 
> I'll try to install server 2008 next week and see what happens with that.
> Any one know any tricks to get single user Windows apps to behave in a
> multi user environment?
> 
> John
> 

I finally did an install of server 2008 on the same xen dom0.
Before installing pv drivers get 43 Mbit/sec.
better than double xp.

With pv driver 328 Mbit/sec.
Not spectacular but usable.

Then I installed Synaptic Endpoint Protection.
That brought me back to 162 Mbit/sec.

Any suggestions?

John



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