Re: [Xen-devel] CAP and performance problem

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On gio, 2013-06-06 at 14:52 +0200, Massimo Canonico wrote:
> On 06/06/2013 12:44 PM, George Dunlap wrote:
> >> You can test this by setting the xen hypervisor boot option
> >>
> >> cpufreq=none
> >>
> >> and run your test again (with and without cap).
> >
> > Ah, genius Juergen!  That would make total sense.
> >
> >  -George
> >
> Unfortunately, this did not change much. I set "cpufreq=none" in the 
> boot line and restart my experiment.
> With no cap I got 298.029
> with cap=50% I got 910.272
> (average values of 3 experiments for each cap setting)
> 
Mmm... 298.029 is a lot faster than what you reported before, though...
Are this the exact same experiments?

In fact, in the first e-mail of this thread you said that "with CAP =
100% I got my results in about 600 seconds". So, have you changed
something or the cpufred=none did at least have some effect?

Dario

-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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