linux-kernel - Re: perf: prctl(PR_TASK_PERF_EVENTS

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Message-ID: <20120128120151.GA10390@elte.hu>
Date:	Sat, 28 Jan 2012 13:01:51 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Andrew Steets <asteets@...advisors.com>
Cc:	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Subject: Re: perf: prctl(PR_TASK_PERF_EVENTS_DISABLE) has no effect


* Andrew Steets <asteets@...advisors.com> 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?

Thanks,

	Ingo
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