[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] perfc: count number of explicit vcpu yields
On 09/11/15 14:00, Ian Campbell wrote: > Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxx> > --- > xen/common/schedule.c | 1 + > xen/include/xen/perfc_defn.h | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/xen/common/schedule.c b/xen/common/schedule.c > index 292e9a0..86d6cc0 100644 > --- a/xen/common/schedule.c > +++ b/xen/common/schedule.c > @@ -896,6 +896,7 @@ long vcpu_yield(void) > struct vcpu * v=current; > spinlock_t *lock = vcpu_schedule_lock_irq(v); > > + SCHED_STAT_CRANK(sched_yield); > SCHED_OP(VCPU2OP(v), yield, v); > vcpu_schedule_unlock_irq(lock, v); > > diff --git a/xen/include/xen/perfc_defn.h b/xen/include/xen/perfc_defn.h > index 76ee803..034c7d3 100644 > --- a/xen/include/xen/perfc_defn.h > +++ b/xen/include/xen/perfc_defn.h > @@ -16,6 +16,7 @@ PERFCOUNTER(ipis, "#IPIs") > PERFCOUNTER(sched_irq, "sched: timer") > PERFCOUNTER(sched_run, "sched: runs through scheduler") > PERFCOUNTER(sched_ctx, "sched: context switches") > +PERFCOUNTER(sched_yield, "sched: vcpu yield") > PERFCOUNTER(schedule, "sched: specific scheduler") > PERFCOUNTER(dom_init, "sched: dom_init") > PERFCOUNTER(dom_destroy, "sched: dom_destroy") > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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