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Re: [Xen-users] Release 0.8.9 of GPL PV drivers for Windows

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Subject: Re: [Xen-users] Release 0.8.9 of GPL PV drivers for Windows
From: jim burns <jim_burn@xxxxxxxxxxxxx>
Date: Mon, 28 Apr 2008 02:18:00 -0400
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On Monday April 28 2008 12:42:57 am Pasi Kärkkäinen wrote:
> Hmm.. so hvm winxp with pv drivers is around 20x slower for you than pv
> linux domU..

Hence my interest in the performance of the PV drivers. I'm consigned to 
*some* slow down in an hvm domain where every paging request is a software 
trap. Actually, my biggest complaint is the speed of the video 'adapter'. 
Anything higher than DSL speeds on the net 'adapter' is acceptable, and James 
is already well past that. A little less sluggishness would be nice on 
the 'disk' also, though I realize there are limits to file backed vbds.

> btw did you have other domains running while your tests were running?

Just an idle Fedora vm. Dom0 wasn't doing anything in particular also.

> Have you tried VMware btw? Would be nice to see results with other
> virtualization software too..

I played with Vmware Player before Vmware Workstation was free. Was frustrated 
by the lack of Windows appliances that only ran on Windows. My whole interest 
in virtualization is so I don't have to keep 'hitting the reset button', and 
I have that now with Xen. Kvm also didn't support Windows at the time. I 
played with Uml at the beginning, but SuSE was starting to phase it out, and 
I could never get it to work. Vmware is probably an acceptable alternative 
nowadays, as is qemu and variants, but I've chosen Xen. This gives me more 
than enough topics to learn about - iscsi, HA, PV drivers, PCI passthrough, 
etc., and I probably don't have the time to devote to another product now.

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