Messages in this thread | | | Date | Sat, 28 Jan 2012 17:48:08 -0600 | From | Andrew Steets <> | Subject | Re: perf: prctl(PR_TASK_PERF_EVENTS_DISABLE) has no effect |
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On 1/28/12 6:01 AM, Ingo Molnar wrote:
>> prctl(PR_TASK_PERF_EVENTS_DISABLE) doesn't appear to disable >> perf event counters. Here is a demonstration program: > > btw., what's your usecase? >
I'm trying to profile a small section of a long-running program. I ran into trouble using call-graph recording and I thought this might be an alternative way of getting what I was after.
-Andrew
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