Received: by 2002:a25:1506:0:0:0:0:0 with SMTP id 6csp694707ybv; Wed, 5 Feb 2020 12:48:16 -0800 (PST) X-Google-Smtp-Source: APXvYqwJEMEadDAcuV+6fOksD5WnD5ys6SpoOoluoNEuzySz8z6K6tQcHrq9H4/8gQ2q7qWD5Ypc X-Received: by 2002:a54:4e96:: with SMTP id c22mr4497225oiy.110.1580935696267; Wed, 05 Feb 2020 12:48:16 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1580935696; cv=none; d=google.com; s=arc-20160816; b=BYPkpgxc+ZCeZMzxjZAixinC+oBwEvwsdGez8UlD9yURp6qazMdHwLqFuyQFoYc0Ac JkQgUHoL8/hRCVTy9I0xq+X6Ij4gi1Jjv4SVI3MDXtVH+0A1aqOHKqJSRvVu9Xx6djOK jHfCs1K0QCZjYRHhWwH5OwUlxIym7OtCc7GL2ZStj7IXgAyTbG732oV0M+JWCslqPvXR 2JsDSinvTa9PkBvDJiHN1CXRof7s2yE9isvV4SscX1gv2b/wTsxBvBIQLfcvcyfoZfts c5fY+kzk5aQbYBnA1TnucW/RxdLMj63/ftlm4fo1KhFvcbZYd9VbQU/LiDV/xVj3GNm9 xZ3w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:message-id :in-reply-to:date:references:subject:cc:to:from; bh=Nb2uNAYJruJ2EblZaUxupuIyDjqWakRPfeuaZ2fKf0I=; b=IPtDRLKuYtdTRxs+uPEpe0cypHlZYEcDBsx7c3HnUR9p1pAgw15/Td7sqDTebTyKX0 hhI2ebvfGUDQlpZhsq+qUG2LgQVz2+9F5H2SSUFab5ks1nSDQIVYsuUnbIlQlQKVGAI0 zIt+4ThnF/LcFksiiNJ+9lZB9Nardo0K215+QfHMSZimAFK9DWWAALeXL8sabLB4HY9D 0Aw+6hoEnbmV4lc8n5ZJjaq7s6pdN318EjWWro0pGriKeixrYKDX0GsGHFXanjT4qg1U 9dpnyOniKt8SbSLZw19i4YIfYvtKWm6Q9/BzZbpZ0zlHPkEvM6TS9Y4PDNH3e4AB9319 fwNw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v18si384523otq.209.2020.02.05.12.48.03; Wed, 05 Feb 2020 12:48:16 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727116AbgBEUrH (ORCPT + 99 others); Wed, 5 Feb 2020 15:47:07 -0500 Received: from mga01.intel.com ([192.55.52.88]:15298 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726534AbgBEUrH (ORCPT ); Wed, 5 Feb 2020 15:47:07 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Feb 2020 12:47:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,407,1574150400"; d="scan'208";a="249832502" Received: from tassilo.jf.intel.com (HELO tassilo.localdomain) ([10.7.201.21]) by orsmga002.jf.intel.com with ESMTP; 05 Feb 2020 12:47:06 -0800 Received: by tassilo.localdomain (Postfix, from userid 1000) id 8C24E3003A2; Wed, 5 Feb 2020 12:47:06 -0800 (PST) From: Andi Kleen To: kernel test robot Cc: Roman Sudarikov , 0day robot , Kan Liang , Alexander Antonov , LKML , lkp@lists.01.org Subject: Re: [perf x86] b77491648e: will-it-scale.per_process_ops -2.1% regression References: <20200205123110.GN12867@shao2-debian> Date: Wed, 05 Feb 2020 12:47:06 -0800 In-Reply-To: <20200205123110.GN12867@shao2-debian> (kernel test robot's message of "Wed, 5 Feb 2020 20:31:10 +0800") Message-ID: <87tv44danp.fsf@linux.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kernel test robot writes: > Greeting, > > FYI, we noticed a -2.1% regression of will-it-scale.per_process_ops due to commit: > > > commit: b77491648e6eb2f26b6edf5eaea859adc17f4dcc ("perf x86: Infrastructure for exposing an Uncore unit to PMON mapping") > https://github.com/0day-ci/linux/commits/roman-sudarikov-linux-intel-com/perf-x86-Exposing-IO-stack-to-IO-PMON-mapping-through-sysfs/20200118-075508 Seems to be spurious bisect. I don't think that commit could change anything performance related. -Andi