[Xen-users] Re: Windows Disk performance

[Christian Tramnitz <chris.ace@xxxxxxx>]

James Harper schrieb:
> I'm a little unsure of how much trust to put in that
> though as hdparm in Dom0 gives me a maximum of 35MB/s on that lvm
> device, so I can't quite figure out how a HVM DomU could be getting
> better results than the hdparm baseline figure.
hdparm is not a good choice for actual hard disk performance testing 
when RAID is being used (I assume you have your LVs on top of an array).
Try bonnie for actual results, although I'm not sure this can be 
directly compared to Windows iometer results...

On another topic, would you mind test signing the drivers before 
packaging them and distributing the certificate? This would make testing 
on x64 2008/Vista a lot easier. I already added a note in the wiki, but 
because the drivers are packaged now it's not so easy to self test sign 
them before they are being used. But if you would distribute the 
certificate with the drivers (import before driver installation) and 
check for test sign mode on x64 then it would work on-the-fly...
If you ever hit something near 1.0 we should start thinking about a 
class 3 code signing certificate at some point ;-)


Best regards,
   Christian


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