Re: [Xen-devel] Re: Poor performance on HVM (kernbench)

[Gianluca Guida <gianluca.guida@xxxxxxxxxxxxx>]

Hello,

Todd Deshane wrote:
> Can you also run kernbench on native for comparison?
I will.

> How much RAM do you have (native and guest)?
2Gb host, 512Mb guest.

> Are all your tests on Xen unstable with the code changes on and off as
> you suggested?
Yes.

> What is the backend disk type for your HVM guest?
Here's my configuration for disks (no stubdomains, btw).

disk = [ 'file:/root/prova,hda,w', 
'file:/local-images/debian-40r0-amd64-netinst.iso,hdc:cdrom,r']
> What is the kernel in your HVM guest?
It's the standard debian 4.0 I guess, 2.6.18-4-amd64.


> I will make the same changes to the xen unstable code and re-run
> kernbench with shadow3 disabled
> on my system.
Thanks, that would be interesting to know!

Gianluca

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