Re: [PATCH 2/11] Sched clock paravirt op

[Zachary Amsden]

Jeremy Fitzhardinge wrote:
> Zachary Amsden wrote:
>   
> > Scheduled (or available) time and real time are good notions.  Stolen
> > time is debatable.  But TSC is basically just always wrong.  That's
> > why I don't want to overload the rdtsc operation. 
> >     
> Well, in the Xen case it is actually guaranteed to be correct and useful
> as real time, but that's definitely not something we can expect in
> general.  But you're talking specifically about schedulable vcpu time
> here, right?
>   

Not schedulable time, scheduled time (schedulable - scheduled) = stolen

Zach

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