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

[jim burns <jim_burn@xxxxxxxxxxxxx>]

On Wednesday 27 February 2008 06:09:24 am Pasi Kärkkäinen wrote:
> These 2 MByte/sec result sounds really poor..
>
> Xensource and VirtualIron claim "near bare metal performance" with PV
> drivers (for Windows)..
>
> What's wrong with these drivers?

Yeah, I'm disappointed at the open source, or at least free and 
non-proprietary solutions offered so far. I'd love to know how the 
proprietary drivers get better performance.

> Or is the test somehow wrong? How *exactly* do you measure the performance?
> What's the *exact* setup and configuration?

My network benchmark post seems to have disappeared from the archives (unless 
I accidently sent that as a private mail to Emre). Basically, it's a very 
simplistic timed file copy from domu to dom0. I reboot the domu with the 
driver I'm testing, and after the cpu load dies down from initialization, I 
copied a 40MB file and divided the file size by the wall clock time in secs. 
Then I rebooted and tried the next driver.

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