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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 6CF73C76188 for ; Fri, 19 Jul 2019 11:49:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 446092184E for ; Fri, 19 Jul 2019 11:49:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YKJdENoz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728135AbfGSLs7 (ORCPT ); Fri, 19 Jul 2019 07:48:59 -0400 Received: from mail-lf1-f68.google.com ([209.85.167.68]:33576 "EHLO mail-lf1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727665AbfGSLs4 (ORCPT ); Fri, 19 Jul 2019 07:48:56 -0400 Received: by mail-lf1-f68.google.com with SMTP id x3so21622082lfc.0 for ; Fri, 19 Jul 2019 04:48:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Iticw4tcihZ+07VhgZfVUmt5G5vuNCB2orcBTVaQzy4=; b=YKJdENozcfSHfpIPcIFN0eEP24xcLJYRBr/2HswHgNsQlSymIPeXI5Z915L1C+CfvC paovF7vRic2NHO7c0B0UxbxOpyMnt8ZU/VIoGUdvRT6AANFuKIxNpJ3qQ4dxeiBHnhBt 9pK7UPxgzQyfc5e0UgbeEqK7B0whaRG7axOtSx8FVaOhqatQIbzX7iACeDa/49ovYDGA vpnJdPVWG6qqL+w2GIo/2FNWcMgD8NMFPdB3yMTalmYMxA0DnpP7X2OY/1Nz4yiJLNHv j9//ZC78nlVdmiC1pWjEGRsXv02AxckZZ6Mf+tHEjrv6RXgpxgriG23Y6udyUS43OjQF VUTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Iticw4tcihZ+07VhgZfVUmt5G5vuNCB2orcBTVaQzy4=; b=AIkQzYZJSp55oB/R0Pe9omWH21iEQmwPzw9y6Q+ycvww4zTYo8VD7iJ+HvzIBHJ/bO BNYJWdZGqdE9m9BC3fMudB5EQ0bfErskWW+VNlJg+QRFK4JakOwWckdtvD+MJhb+jCvU cHeTA9HWqq3nDao/7lOuFfnCOvg3lYQ6gwTMfpiOGjoB2AIEAAEjGw21KdJ652TqQUln iw9yJ9Er+ovxm3QrBvVOZax1Oh8g+kIU4T27nEtk/hs8Gp5vgGZ6ID3d7/gzEegHzDWp cckfJFwrJ5fkOQJFY79JTB2xaLY6V7Bj4sEbaNOdddh/xvFYN+8DYi1o3M9JdooCOLsQ gi9g== X-Gm-Message-State: APjAAAXiV0Dn2lOc2NmYYafETax8/aeO07cWlVXPvV60nVphcSAUG5OS HuIqyrwyM/5XRgWzcDNnt3WZ/8dRh1UN/TV97NU= X-Google-Smtp-Source: APXvYqymGrgw/089/6XHyfPjYaYN56y+q7KROCrfg2jRO2RI0Apr6JtYx/vQK86SnBbeDOEPn8jWWJ5v7DUPCuznrHM= X-Received: by 2002:a05:6512:146:: with SMTP id m6mr23731306lfo.90.1563536934097; Fri, 19 Jul 2019 04:48:54 -0700 (PDT) MIME-Version: 1.0 References: <20190531210816.GA24027@sinkpad> <20190606152637.GA5703@sinkpad> <20190612163345.GB26997@sinkpad> <635c01b0-d8f3-561b-5396-10c75ed03712@oracle.com> <20190613032246.GA17752@sinkpad> <20190619183302.GA6775@sinkpad> <20190718100714.GA469@aaronlu> <5f869512-3336-d9f0-6fff-e1150673a924@linux.intel.com> <20190719055238.GA536@aaronlu> In-Reply-To: <20190719055238.GA536@aaronlu> From: Aubrey Li Date: Fri, 19 Jul 2019 19:48:42 +0800 Message-ID: Subject: Re: [RFC PATCH v3 00/16] Core scheduling v3 To: Aaron Lu Cc: Tim Chen , Julien Desfossez , Subhra Mazumdar , Vineeth Remanan Pillai , Nishanth Aravamudan , Peter Zijlstra , Ingo Molnar , Thomas Gleixner , Paul Turner , Linus Torvalds , Linux List Kernel Mailing , =?UTF-8?B?RnLDqWTDqXJpYyBXZWlzYmVja2Vy?= , Kees Cook , Greg Kerr , Phil Auld , Valentin Schneider , Mel Gorman , Pawan Gupta , Paolo Bonzini Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 19, 2019 at 1:53 PM Aaron Lu wrote: > > On Thu, Jul 18, 2019 at 04:27:19PM -0700, Tim Chen wrote: > > > > > > On 7/18/19 3:07 AM, Aaron Lu wrote: > > > On Wed, Jun 19, 2019 at 02:33:02PM -0400, Julien Desfossez wrote: > > > > > > > > With the below patch on top of v3 that makes use of util_avg to decide > > > which task win, I can do all 8 steps and the final scores of the 2 > > > workloads are: 1796191 and 2199586. The score number are not close, > > > suggesting some unfairness, but I can finish the test now... > > > > Aaron, > > > > Do you still see high variance in terms of workload throughput that > > was a problem with the previous version? > > Any suggestion how to measure this? > It's not clear how Aubrey did his test, will need to take a look at > sysbench. > Well, thanks to post this at the end of my vacation, ;) I'll go back to the office next week and give a shot. I actually have a new setup of co-locating AVX512 tasks with sysbench MYSQL. Both throughput and latency was unacceptable on the top of V3, Looking forward to seeing the difference of patch. Thanks, -Aubrey