[Fedora-xen] expected disk performance?

[Ben]

Well, I changed the io scheduling on the dom0 to use deadline and got  
a 30% improvement. I then noticed that the domU was using the noop  
scheduler, so for kicks I changed that to be deadline as well. Now  
I'm going about 3 times faster than when I had been this morning. At  
6MB/s scap speed over 100Mb ethernet, that's not exactly where I want  
it, but it's an awful lot better.

Thanks for this suggestion!

On May 24, 2006, at 12:58 PM, Brian Stein wrote:

> Ben wrote:
>> It's an adaptec card, and I've seen it push over 25MB/s before I  
>> went to xen, so it's not the card.
>
> Try changing the I/O elevator to deadline for dom0 and report back  
> on the thruput.  As there is planned tuning work this could change,  
> but for now it may dramatically help.
>