On Fri, May 20, 2016 at 06:38:33AM -0700, Andi Kleen wrote:
> > > @@ -82,6 +87,12 @@ void perf_stat__reset_shadow_stats(void)
> > > sizeof(runtime_transaction_stats));
> > > memset(runtime_elision_stats, 0, sizeof(runtime_elision_stats));
> > > memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
> > > + memset(runtime_topdown_total_slots, 0,
> > > sizeof(runtime_topdown_total_slots));
> > > + memset(runtime_topdown_slots_retired, 0,
> > > sizeof(runtime_topdown_slots_retired));
> > > + memset(runtime_topdown_slots_issued, 0,
> > > sizeof(runtime_topdown_slots_issued));
> > > + memset(runtime_topdown_fetch_bubbles, 0,
> > > sizeof(runtime_topdown_fetch_bubbles));
> > > + memset(runtime_topdown_recovery_bubbles, 0,
> > > sizeof(runtime_topdown_recovery_bubbles));
> > > + have_frontend_stalled = pmu_have_event("cpu",
> > > "stalled-cycles-frontend");
> >
> > why to initialize this one in here? it's already in
> > perf_stat__init_shadow_stats
>
> You mean the have_frontend_stalled?
>
> I don't think it's in init_shadow_stats yet, but it could be moved.
>
fb4605ba47e7 perf stat: Check for frontend stalled for metrics
+void perf_stat__init_shadow_stats(void)
+{
+ have_frontend_stalled = pmu_have_event("cpu",
"stalled-cycles-frontend");
+}
jirka
