From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755402Ab1LMSQY (ORCPT ); Tue, 13 Dec 2011 13:16:24 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:49314 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755017Ab1LMSQX (ORCPT ); Tue, 13 Dec 2011 13:16:23 -0500 Message-ID: <4EE7962E.90204@fb.com> Date: Tue, 13 Dec 2011 10:15:10 -0800 From: Arun Sharma User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: Peter Zijlstra CC: Eric Dumazet , , Kumar Sundararajan , Ingo Molnar , Thomas Gleixner , john stultz , Andy Lutomirski Subject: Re: [PATCH 2/2] Add a thread cpu time implementation to vDSO References: <1323718578-1157-1-git-send-email-asharma@fb.com> <1323718578-1157-3-git-send-email-asharma@fb.com> <1323720791.2583.23.camel@edumazet-laptop> <4EE66FE9.1050202@fb.com> <1323725243.2583.27.camel@edumazet-laptop> <4EE67CB5.7000404@fb.com> <1323766358.9082.0.camel@twins> In-Reply-To: <1323766358.9082.0.camel@twins> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.18.252] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.5.7110,1.0.211,0.0.0000 definitions=2011-12-13_03:2011-12-13,2011-12-13,1970-01-01 signatures=0 X-Proofpoint-Spam-Reason: safe Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/13/11 12:52 AM, Peter Zijlstra wrote: > On Mon, 2011-12-12 at 14:14 -0800, Arun Sharma wrote: > >>> But really most modern distros have NR_CPUS> 64 >> >> Is 256 the new 64? :) > > 4096 in fact. Not sure if you're asking for vsyscall support for NR_CPUS=4096 case or just a compile fix + disabled vsyscall is ok. -Arun