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SubjectRe: [PATCH 0/3] tracing/perf: perf_trace_buf/perf_xxx hacks.
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.

David


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