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[209.132.180.67]) by mx.google.com with ESMTP id h34-v6si16492387pld.360.2018.04.25.09.51.25; Wed, 25 Apr 2018 09:51:40 -0700 (PDT) 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; dkim=pass header.i=@oracle.com header.s=corp-2017-10-26 header.b=ZLWIVRvH; 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=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755677AbeDYQt4 (ORCPT + 99 others); Wed, 25 Apr 2018 12:49:56 -0400 Received: from aserp2130.oracle.com ([141.146.126.79]:42032 "EHLO aserp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754631AbeDYQts (ORCPT ); Wed, 25 Apr 2018 12:49:48 -0400 Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w3PGkBGF079417; Wed, 25 Apr 2018 16:49:12 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2017-10-26; bh=Wh2rP8AnY3/2bQ+Qm5x8pTdZJMGPbx3JX3TrKZrzEY0=; b=ZLWIVRvHebsxp3ikshUiRMlSrVRf+QRpwJ9oJnZio69BGt1UQ8hrv/rtvnf0dKO0npfO ckdz+GtteWH+YVJDwxy47DfG6/hI3PjS12K4aiqfRODUuJu9AD/sv/SNZ8qClwQB+hep CY1n6a6Pr3PvxlBDMZv+Wr3eWDmAXgZ9JEaNq6xGv84ntOkRrrYDyNpW1LLPyMZsxhlG FxnWX0waHnL3lxXZsMX2TMREO6blwI8Kym/TsjLc2dyhTfkZYH9EYCordGPiTit2MUov 0DajYFoYWQjEKXRrt+qyUIbFmxJhFENLZ2Jfav9bbJEv1rNLWeNuTVlvacKrouTF/kja Lg== Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp2130.oracle.com with ESMTP id 2hftty7ttg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 25 Apr 2018 16:49:11 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w3PGnBXT009153 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 25 Apr 2018 16:49:11 GMT Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w3PGnBwX028968; Wed, 25 Apr 2018 16:49:11 GMT Received: from [10.132.91.66] (/10.132.91.66) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 25 Apr 2018 09:49:10 -0700 Subject: Re: [PATCH] sched/fair: Rearrange select_task_rq_fair() to optimize it To: Viresh Kumar Cc: Joel Fernandes , Peter Zijlstra , Valentin Schneider , Ingo Molnar , Vincent Guittot , Daniel Lezcano , Linux Kernel Mailing List , Quentin Perret , Joel Fernandes References: <8a34a16da90b9f83ffe60316a074a5e4d05b59b0.1524479666.git.viresh.kumar@linaro.org> <434fa179-7c8f-8a01-a07a-4527521a04c7@arm.com> <20180424104304.GE4064@hirez.programming.kicks-ass.net> <0985e709-0d71-2c08-20a9-7bfb618fb5f2@arm.com> <20180424123523.GF4064@hirez.programming.kicks-ass.net> <20180425025111.zn6fwkr4o4d3y52c@vireshk-i7> From: Rohit Jain Message-ID: Date: Wed, 25 Apr 2018 09:48:50 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180425025111.zn6fwkr4o4d3y52c@vireshk-i7> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8874 signatures=668698 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=737 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1804250155 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/24/2018 07:51 PM, Viresh Kumar wrote: > On 24-04-18, 15:34, Rohit Jain wrote: >> Including the "unlikely" suggestion and the original patch, as expected >> with a quick hackbench test on a 44 core 2 socket x86 machine causes no >> change in performance. > Want me to include your Tested-by in next version ? > Please feel free to include it. I was not sure if this is too small a test to say tested by.