Re: Use virtual cpu accounting if available for guest times.

Hollis Blanchard
2007-10-19T17:18:56Z

On Fri, 2007-10-19 at 11:57 -0500, Hollis Blanchard wrote:
> > @@ -669,11 +670,13 @@ __init void kvm_arch_init(void);
> >
> > static inline void kvm_guest_enter(void)
> > {
> > + account_system_vtime(current);
> > current->flags |= PF_VCPU;
> > }
> >
> > static inline void kvm_guest_exit(void)
> > {
> > + account_system_vtime(current);
> > current->flags &= ~PF_VCPU;
> > }
>
> I don't understand. Should kvm_guest_exit() be calling
> account_user_vtime() (instead of account_system_vtime())?

Never mind; the tree I was looking at didn't have the
account_guest_time() stuff in account_system_time().

--
Hollis Blanchard
IBM Linux Technology Center