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Re: [Xen-users] Release 0.8.0 of GPL PV Drivers for Windows

To: "jim burns" <jim_burn@xxxxxxxxxxxxx>
Subject: Re: [Xen-users] Release 0.8.0 of GPL PV Drivers for Windows
From: "Emre ERENOGLU" <erenoglu@xxxxxxxxx>
Date: Thu, 28 Feb 2008 02:38:59 +0100
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Jim,

you don't need to use these drivers at all. So let's be more supportive to James, at least he's doing whatever possible. I'm sure we'll find the reason of the low performance. I would also love to see some independent confirmation that the "proprietary solutions" work faster.

My system is fully 32-bit, 1 cpu domu. 2 cpu dom0.

James, your system being a multiprocessor domU may explain the 2 mbyte/sec I see and 5 mbyte/sec you see. Why is this network driver so dependent on the CPU?  Is it normal? I saw such behaviour in wireless drivers in the past.

Emre

On Thu, Feb 28, 2008 at 2:29 AM, jim burns <jim_burn@xxxxxxxxxxxxx> wrote:
On Wednesday 27 February 2008 08:09:56 pm James Harper wrote:
> Some brief testing I just did showed I was able to copy a 200MB file
> from a DomU (W2K3 running my PV drivers) to my xp laptop (1gb Ethernet
> all the way) in 42 seconds, which is about 5MB/second. CPU Load was 100%
> on 1 CPU.

Just out of curiousity, is this a 64bit system? dom0 or domu?

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Emre Erenoglu
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