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=-1.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS autolearn=ham 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 30E1CC43441 for ; Thu, 11 Oct 2018 00:10:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C4B96206B2 for ; Thu, 11 Oct 2018 00:10:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="3icTU8r6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C4B96206B2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726272AbeJKHfR (ORCPT ); Thu, 11 Oct 2018 03:35:17 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:57748 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725968AbeJKHfR (ORCPT ); Thu, 11 Oct 2018 03:35:17 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w9B09qnH157158; Thu, 11 Oct 2018 00:10:05 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=to : cc : from : subject : message-id : date : mime-version : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=o1U3BkRHZrjF+n+MLWqGRb9CRrqu5urApEs/TNKZ0S8=; b=3icTU8r6Xdm9OjLD/FUQGXRZ+SHQUF44SNT6jh/fg0o48V1yGb7nPkkzZ/7NmGlimMQw iCKlhcGB9rAGu1KsiMxOu9YXa5zVlpGa+8j9KslD/BnIJzT5kWgX8MEtrW3B2e56ias+ Vf3rFPV3pVExSkngy/2eX4KrqcdnjfVuTIFNn/prO8+VW7JKwEB814a4hr+KsDMcGaPS OY9EvF6RZnY9uZ13vCbMrDUbvSohxT+oFmT6n6/P+B1uz7L6oMOpuG/TBVP1+CksEpdJ Brr3JG1W1wpPkC8BLPzqMMcjbOadA7kI9O32ADGgUPKqF+ZriF1WDiJVeRVRPrUAs7Gv GA== Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp2120.oracle.com with ESMTP id 2mxn0q7a1y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 11 Oct 2018 00:10:04 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w9B09w9o029750 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 11 Oct 2018 00:09:58 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w9B09v4v003317; Thu, 11 Oct 2018 00:09:58 GMT Received: from [10.132.91.175] (/10.132.91.175) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 11 Oct 2018 00:09:57 +0000 To: linux-kernel@vger.kernel.org Cc: tim.c.chen@linux.intel.com, Peter Zijlstra From: Subhra Mazumdar Subject: Gang scheduling Message-ID: <44347e72-d595-5c2d-3983-7237526c71c6@oracle.com> Date: Wed, 10 Oct 2018 17:09:34 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 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=9042 signatures=668706 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=706 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1810110001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I was following the Coscheduling patch discussion on lkml and Peter mentioned he had a patch series. I found the following on github. https://github.com/pdxChen/gang/commits/sched_1.23-loadbal I would like to test this with KVMs. Are the commits from 38d5acb to f019876 sufficient? Also is there any documentaion on how to use it (any knobs I need to turn on for gang scheduling to happen?) or is it enabled by default for KVMs? Thanks, Subhra