Re: [Xen-devel] Xen timing mode

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 02/23/2010 09:29 AM, Priya wrote:
> The Xen Interface manual for Xen v2.0 (attached) Page 4 defines Domain 
> - virtual time as
> " The time that progresses at the same pace as system time, but only 
> while a domain is executing -- it stops while a domain is 
> de-scheduled. Therefore the share of the CPU that a domain receives is 
> indicated by the rate at which its virtual time increases."
> I am interesting in finding out if any of the timing system 
> calls/instructions like gettimeofday(), hwclock(), rdtsc() can read 
> this domain virtual time.
/proc/stat publishes stolen time for each vcpu (second-last column on 
the "cpuX" lines); you can subtract that from monotonic time to work out 
how much vcpu the domain has got.
    J

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