From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751871AbZHSNBC (ORCPT ); Wed, 19 Aug 2009 09:01:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751710AbZHSNBB (ORCPT ); Wed, 19 Aug 2009 09:01:01 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:45687 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751520AbZHSNBA (ORCPT ); Wed, 19 Aug 2009 09:01:00 -0400 Date: Wed, 19 Aug 2009 15:00:55 +0200 From: Ingo Molnar To: Peter Zijlstra Cc: Paul Mackerras , Arnaldo Carvalho de Melo , Frederic Weisbecker , Mike Galbraith , linux-kernel@vger.kernel.org, stephane eranian Subject: Re: [PATCH 4/4][RFC] perf_counter: Allow sharing of output channels Message-ID: <20090819130055.GA14215@elte.hu> References: <20090819091823.916851355@chello.nl> <20090819092023.980284148@chello.nl> <19083.61914.571806.395197@cargo.ozlabs.ibm.com> <1250686586.8282.12.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1250686586.8282.12.camel@twins> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Peter Zijlstra wrote: > > Does this only apply to sampling counters? > > Yeah, everything that would otherwise go through the mmap() > buffer. Note that this can include sample-driven normal counts as well, i.e. PERF_SAMPLE_READ and perf record -s/--stat. Ingo