Re: Stolen and degraded time and schedulers

Jeremy Fitzhardinge
2007-03-14T20:59:54Z

Ingo Molnar wrote:
> touching the 'timer tick' is the wrong approach. 'stolen time' only
> matters to the /scheduler tick/. So extend the hypervisor interface to
> allow the injection of 'virtual' scheduler tick events: via the use of a
> special clockevents device - do not change clockevents itself.

I didn't. I was using sloppy terminology: I hang the stolen time
accounting off the Xen timer interrupt routine, just so that it gets run
every now and again.

I suppose I could explicitly hook stolen time accounting into the
scheduler, but its not obvious to me that it's necessary.

J