Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756152AbaGaHSe (ORCPT ); Thu, 31 Jul 2014 03:18:34 -0400 Received: from mga03.intel.com ([143.182.124.21]:35332 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756040AbaGaHSc (ORCPT ); Thu, 31 Jul 2014 03:18:32 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,770,1400050800"; d="scan'208";a="463472348" Message-ID: <53D9EDB5.6020304@intel.com> Date: Thu, 31 Jul 2014 15:18:13 +0800 From: "Yan, Zheng" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Ingo Molnar CC: linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl, acme@infradead.org, eranian@google.com, andi@firstfloor.org, Jiri Olsa Subject: Re: [PATCH v4 0/9] perf, x86: large PEBS interrupt threshold References: <1406789104-25863-1-git-send-email-zheng.z.yan@intel.com> <20140731071625.GA4209@gmail.com> In-Reply-To: <20140731071625.GA4209@gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/31/2014 03:16 PM, Ingo Molnar wrote: > > * Yan, Zheng wrote: > >> This patch series implements large PEBS interrupt threshold. For some >> limited cases, it can significantly reduce the sample overhead. Please >> read patch 6's commit message for more information. >> >> changes since v1: >> - drop patch 'perf, core: Add all PMUs to pmu_idr' >> - add comments for case that multiple counters overflow simultaneously >> changes since v2: >> - rename perf_sched_cb_{enable,disable} to perf_sched_cb_user_{inc,dec} >> - use flag to indicate auto reload mechanism >> - move codes that setup PEBS sample data to separate function >> - output the PEBS records in batch >> - enable this for All (PEBS capable) hardware >> - more description for the multiplex >> changes since v3: >> - ignore conflicting PEBS record > > Please include performance measurements, 'significantly reduces sample > overhead' is a totally inadequate description to judge this patch set. patch 6 contains performance data. > > Please also include total diffstat in the 0/N mail. > will do. Regards Yan, Zheng > Thanks, > > Ingo > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/