Messages in this thread | | | Date | Sun, 26 Feb 2012 20:23:19 -0700 | From | David Ahern <> | Subject | Re: perf record: can I specify multiple events and use different sample-after value |
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On 2/24/12 3:41 PM, Yuanfang Chen wrote: > I think I'll settle with perf record for now. Still, unlike trace > event, sample count is not meaningful for PMU event. Output of "perf > script" does not include period value. One line of code will do the > work. > > lude 17342 750118.202915: raw 0x3c: 86754 ffffffff8115f6b9 > __mem_cgroup_commit_char > lude 17342 750118.203025: raw 0x3c: 1027634 ffffffff811344b9 > __mem_cgroup_commit_char > > 86754, 1027634 is the period value. But I'm not sure which is the PMU > value, is it just period value, or period x sample after. If so, what > is the sample after value?
You lost me. You modified perf-script to print the period?
Are you asking for the PMU counter value for 0x3c?
What perf commands are you running?
David
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