From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753058AbbIKNDp (ORCPT ); Fri, 11 Sep 2015 09:03:45 -0400 Received: from mail.kernel.org ([198.145.29.136]:60645 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751913AbbIKNDo (ORCPT ); Fri, 11 Sep 2015 09:03:44 -0400 Date: Fri, 11 Sep 2015 10:03:39 -0300 From: Arnaldo Carvalho de Melo To: "Wangnan (F)" Cc: Kan Liang , Ingo Molnar , linux-kernel@vger.kernel.org, Adrian Hunter , Borislav Petkov , David Ahern , Frederic Weisbecker , Jiri Olsa , Namhyung Kim , Stephane Eranian Subject: Re: [RFC 00/13] perf_env/CPU socket reorg/fixes Message-ID: <20150911130339.GI23511@kernel.org> References: <1441828225-667-1-git-send-email-acme@kernel.org> <55F2C726.4080204@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55F2C726.4080204@huawei.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Fri, Sep 11, 2015 at 08:20:54PM +0800, Wangnan (F) escreveu: > I have tested patch 1 to 10. They looks good to me except patch 4/13. Please Ok, I'll take that as a Tested-by: you for 1-10 with 4/13 having the checks added, ok? > see my email in that thread. I add those checks. > However, during the testing I found a limitation related to cpu > online/offline and 'perf top' that, if I offline most of cores before > 'perf top', then online them during 'perf top' running, 'perf top' > dooesn't report new CPUs. It still reports the CPUs which are online > However, It is relatively a rare case. I don't think we have to fix it > in this patchset. Yup, unrelated to this patchset. But we need to seamlessly support that situation, even telling the user that a CPU went offline/online. - Arnaldo