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=-6.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,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 35ABDC4CEC6 for ; Thu, 12 Sep 2019 23:13:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 018DB2084D for ; Thu, 12 Sep 2019 23:13:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HZYuNMhW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727277AbfILXNG (ORCPT ); Thu, 12 Sep 2019 19:13:06 -0400 Received: from mail-lj1-f193.google.com ([209.85.208.193]:34638 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726032AbfILXNF (ORCPT ); Thu, 12 Sep 2019 19:13:05 -0400 Received: by mail-lj1-f193.google.com with SMTP id h2so18732262ljk.1 for ; Thu, 12 Sep 2019 16:13:04 -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=cMjlgriNCzvIkVTB26pcWV68J130Qu1Uc+SjWIpj8f4=; b=HZYuNMhW5ZekwtHAd1wOVinsQ5DFyx8ZZ3iFj9JV5qfXzdxdD5L5ntCcvh38nWkuaZ IXdIkRco2aopxVb7df/kXb+h3miFufJQYDToUBfpRp7GIdyllNpIqbkkioxXdNJvWUEB nR4qiPn+FYjtwP0I3mu94FqzobiEzTDSNd/YM+d9kmTYnm9SPI+KQU+AEyniv23VyDHz 7YAaspbwcV4VKi7yrnOERiz70NVJpo0pwkJ58j15TPZMQhI4EQUjMyWm0pz73rD0tHxx kl+5EnhaRqUsN5QY5Lu2qCk/7SsDPqeef+aG8/biRrQxLg7snzMP0Qgpt4Z/hvKAtx0W 83Vg== 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=cMjlgriNCzvIkVTB26pcWV68J130Qu1Uc+SjWIpj8f4=; b=mrZW4P2MNx42Z9KUen9LCdERv8E1FHq7T/LSYTcnh7PIp/m+y2d2gQRZAUzPoxqBJg hhRPNkw9ahDurezC95gDnKdKKW6abaAokIE1v7xRrGqEYgAivGpb1fQxfI8AS6p/zZaM aitDX9YT+Yx5eSGYfSK3eJx5LHUaUn9vLfDBIh6jZafasuLzWID4RFwrpHIv79l1uS69 YpXyVHDS1idtssZKZuBa/n7eGKdEzJFR4NQsYxTMtGEwXAV/LSxQFppe/X/2t/kcIF+R ZVJWQo8zDOYESLGKjOw12R0DQFpiAk6K9Jntkwt3+jpSOlOVdZ0mEgtztVORvm0JWdoS hbtQ== X-Gm-Message-State: APjAAAUbgFhtFBJni3Z8KjQjRqIUwqbylQdxux7qSevwj7vsfleXqxge SAtVs4kGGfx9fwgM4urwmW8eRd0Dx2wbZx9H5WU= X-Google-Smtp-Source: APXvYqyvfX805aUi6JxjJDejRyfEy27oF3Ik+oT5mN/VqnJT2/aVR5TrtTInkPcJjJwoSamsF7mCf8NnecfolxldfTQ= X-Received: by 2002:a2e:9114:: with SMTP id m20mr3928672ljg.103.1568329984026; Thu, 12 Sep 2019 16:13:04 -0700 (PDT) MIME-Version: 1.0 References: <20190725143003.GA992@aaronlu> <20190726152101.GA27884@sinkpad> <7dc86e3c-aa3f-905f-3745-01181a3b0dac@linux.intel.com> <20190802153715.GA18075@sinkpad> <69cd9bca-da28-1d35-3913-1efefe0c1c22@linux.intel.com> <20190911140204.GA52872@aaronlu> <7b001860-05b4-4308-df0e-8b60037b8000@linux.intel.com> <20190912120400.GA16200@aaronlu> In-Reply-To: <20190912120400.GA16200@aaronlu> From: Aubrey Li Date: Fri, 13 Sep 2019 07:12:52 +0800 Message-ID: Subject: Re: [RFC PATCH v3 00/16] Core scheduling v3 To: Aaron Lu Cc: Tim Chen , Julien Desfossez , Dario Faggioli , "Li, Aubrey" , 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 Thu, Sep 12, 2019 at 8:04 PM Aaron Lu wrote: > > On Wed, Sep 11, 2019 at 09:19:02AM -0700, Tim Chen wrote: > > On 9/11/19 7:02 AM, Aaron Lu wrote: > > I think Julien's result show that my patches did not do as well as > > your patches for fairness. Aubrey did some other testing with the same > > conclusion. So I think keeping the forced idle time balanced is not > > enough for maintaining fairness. > > Well, I have done following tests: > 1 Julien's test script: https://paste.debian.net/plainh/834cf45c > 2 start two tagged will-it-scale/page_fault1, see how each performs; > 3 Aubrey's mysql test: https://github.com/aubreyli/coresched_bench.git > > They all show your patchset performs equally well...And consider what > the patch does, I think they are really doing the same thing in > different ways. It looks like we are not on the same page, if you don't mind, can both of you rebase your patchset onto v5.3-rc8 and provide a public branch so I can fetch and test it at least by my benchmark? Thanks, -Aubrey