From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753882Ab0EUKDf (ORCPT ); Fri, 21 May 2010 06:03:35 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:35267 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751280Ab0EUKDe (ORCPT ); Fri, 21 May 2010 06:03:34 -0400 Subject: Re: [PATCH 05/10] perf-record: Share per-cpu buffers From: Peter Zijlstra To: Frederic Weisbecker Cc: Ingo Molnar , Paul Mackerras , Arnaldo Carvalho de Melo , Steven Rostedt , LKML In-Reply-To: <20100521094434.GB30108@nowhere> References: <20100521090201.326791353@chello.nl> <20100521090710.634824884@chello.nl> <20100521094434.GB30108@nowhere> Content-Type: text/plain; charset="UTF-8" Date: Fri, 21 May 2010 12:03:30 +0200 Message-ID: <1274436210.1674.1691.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2010-05-21 at 11:44 +0200, Frederic Weisbecker wrote: > If you do this multiplex per cpu (which I think is a very good thing), you > should also increase the default value of mmap_pages as it might not be big > enough anymore. Hmm, I didn't notice any problems with that.