Re: [Qemu-devel] [5578] Increase default IO timeout from 10ms to 5s

[Anthony Liguori]

Jamie Lokier wrote:
> Anthony Liguori wrote:
>   
> > With this patch, I see the number of wake-ups with an idle dynamic
> > ticks guest drop from 80 per second to about 15 times per second.
> >     
>
> That's great, it really is, but shouldn't it be less than that?
>
> Did you look at the wakeup rate shown by powertop in the guest, to see
> how many extra wakeups are caused by QEMU internals?
>   

I don't have a guest handy that I could run powertop on, but I know of 
at least a few timers that can be gotten rid of (like the rtc timers).

Regards,

Anthony Liguori

> -- Jamie
>
>
>