From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C11BC3A589 for ; Fri, 16 Aug 2019 01:24:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 649CF2086C for ; Fri, 16 Aug 2019 01:24:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726506AbfHPBYz (ORCPT ); Thu, 15 Aug 2019 21:24:55 -0400 Received: from mga01.intel.com ([192.55.52.88]:51063 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726434AbfHPBYy (ORCPT ); Thu, 15 Aug 2019 21:24:54 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Aug 2019 18:24:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,391,1559545200"; d="scan'208";a="171276632" Received: from yjin15-mobl.ccr.corp.intel.com (HELO [10.239.196.32]) ([10.239.196.32]) by orsmga008.jf.intel.com with ESMTP; 15 Aug 2019 18:24:52 -0700 Subject: Re: [PATCH v4] perf diff: Report noisy for cycles diff To: Jiri Olsa Cc: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com, Linux-kernel@vger.kernel.org, ak@linux.intel.com, kan.liang@intel.com, yao.jin@intel.com References: <20190813073037.3420-1-yao.jin@linux.intel.com> <20190815132302.GI30356@krava> From: "Jin, Yao" Message-ID: <99d40f03-f438-d78d-992d-02a91974c4d5@linux.intel.com> Date: Fri, 16 Aug 2019 09:24:51 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190815132302.GI30356@krava> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/15/2019 9:23 PM, Jiri Olsa wrote: > On Tue, Aug 13, 2019 at 03:30:37PM +0800, Jin Yao wrote: >> This patch prints the stddev and hist for the cycles diff of >> program block. It can help us to understand if the cycles >> is noisy or not. >> >> This patch is inspired by Andi Kleen's patch >> https://lwn.net/Articles/600471/ > > now that we have sparks support, we could respin it ;-) > > jirka > The sparks can be used in more places for reporting the data noisy. :) Thanks Jin Yao