Messages in this thread | | | Date | Fri, 27 May 2011 11:50:36 +0200 | From | Ingo Molnar <> | Subject | Re: perf: h/w counters not counted and no error/info reported to user |
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* David Ahern <dsahern@gmail.com> wrote:
> By default (tip-perf-core) perf-stat enables a number of H/W counters: > > perf stat -- sleep 1
did you mean to do 'perf stat -a sleep 1' ?
'perf stat sleep 1' in itself will only measure that very simple command - which does not do much.
Thanks,
Ingo
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