tree 9e220f5049d9963173464dd51906eb210c744fdb
parent 9a4029fd3409eb224eb62c32d9792071382694ec
author Jeremy Fitzhardinge <jeremy@xensource.com> 1184722625 -0700
committer Jeremy Fitzhardinge <jeremy@goop.org> 1184773663 -0700

xen: Account for stolen time

This patch accounts for the time stolen from our VCPUs.  Stolen time is
time where a vcpu is runnable and could be running, but all available
physical CPUs are being used for something else.

This accounting gets run on each timer interrupt, just as a way to get
it run relatively often, and when interesting things are going on.
Stolen time is not really used by much in the kernel; it is reported
in /proc/stats, and that's about it.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Rik van Riel <riel@redhat.com>