Re: perf: prctl(PR_TASK_PERF_EVENTS_DISABLE) has no effect
From: Andrew Steets
Date: Sat Jan 28 2012 - 18:48:41 EST
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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