Re: AW: [Xen-users] PV- Drivers for Windows (XP, 2003 Server)

[Evan Lavelle <sa212+xen@xxxxxxxxxxx>]

Feichtinger Günter wrote:
> Thanks a lot for so much answers.
> After I have read them, I wonder if anybody use Windows guest in OpenSource- 
> Xen enviroment for productiv-systems.
> Because without PV drivers IO- and network performance is not really the best.
I do, for software build and testing. It works *really* well. My 
regressions on HVM W2K run at 70% of their speed on unvirtualised Linux 
(with identical hardware), and builds run at about 40% - 50% full speed 
(these are aggregate results - when I run Bison during the build, for 
example, it runs at about 1 - 2% speed). So, my choice is:
1 - maintain a Windows box for testing, which runs builds/regressions at 
100% speed
2 - throw away the Windows box, virtualise Windows in a 10GB partition 
on a Linux machine, and run my software at 40% - 70% full speed.
It's a no-brainer. Besides, my desktop Windows box is about 7 years old, 
so it might have a 200MHz Pentium in it, and that works fine for 
Word/Excel/Firefox etc. My HVM Windows runs on current hardware, so is 
probably ~10 times faster to start with.
Of course, I haven't tried running Word/Excel/etc under HVM.. :)

Evan

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