Messages in this thread | | | Subject | Re: [PATCH 0/3] tracing/perf: perf_trace_buf/perf_xxx hacks. | From | Steven Rostedt <> | Date | Thu, 20 Jun 2013 14:47:58 -0400 |
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On Thu, 2013-06-20 at 12:35 -0600, David Ahern wrote: > On 6/20/13 12:23 PM, Steven Rostedt wrote: > > > > I ran this: > > > > perf stat --repeat 100 -- perf bench sched pipe > /tmp/perf-bench-sched.{before, after} > > You want to compare: > perf stat --repeat 100 -p 1 -- perf bench sched pipe > > so that event is tagged to pid 1 and not the perf-bench workload.
I guess I'm a bit confused. What's the significance of measuring pid 1 (init)?
-- Steve
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