linux-kernel - Re: perf: regression -- missing /sys/devices/system/cpu/perf

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Message-ID: <alpine.DEB.2.00.1105241341160.24062@cl320.eecs.utk.edu>
Date:	Tue, 24 May 2011 13:42:35 -0400 (EDT)
From:	Vince Weaver <vweaver1@...s.utk.edu>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, paulus@...ba.org,
	acme@...hat.com
Subject: Re: perf: regression -- missing
 /sys/devices/system/cpu/perf_events

On Tue, 24 May 2011, Peter Zijlstra wrote:

> A much more reliable way is simply doing the syscall and seeing what
> happens. But if you want to poke around in sysfs, /sys/bus/event_source/
> is the new location.

It's been suggested that they can look for the existence of:
  /proc/sys/kernel/perf_event_paranoid

is that something not likely to go away?

Vince   
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