linux-kernel - Re: perf_event: rdpmc self-monitoring overhead issue

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Message-ID: <87ob8cdji8.fsf@tassilo.jf.intel.com>
Date:	Sun, 01 Sep 2013 19:50:39 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	eranian@...il.com
Cc:	Vince Weaver <vincent.weaver@...ne.edu>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: perf_event: rdpmc self-monitoring overhead issue

Stephane Eranian <eranian@...glemail.com> writes:

> I don't see a flag in mmap() to fault it in immediately.

MAP_PRESENT

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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