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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 20902C11F64 for ; Mon, 28 Jun 2021 19:32:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E945F61C94 for ; Mon, 28 Jun 2021 19:32:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236649AbhF1Te6 (ORCPT ); Mon, 28 Jun 2021 15:34:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236643AbhF1Tez (ORCPT ); Mon, 28 Jun 2021 15:34:55 -0400 Received: from mail-lj1-x22c.google.com (mail-lj1-x22c.google.com [IPv6:2a00:1450:4864:20::22c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 508CEC061766 for ; Mon, 28 Jun 2021 12:32:29 -0700 (PDT) Received: by mail-lj1-x22c.google.com with SMTP id h6so11143306ljl.8 for ; Mon, 28 Jun 2021 12:32:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=5Y/bR8wUkGVGzhBdcSek4wesHYZCjuAjxxcejF3EnLQ=; b=gfJRI600rr+UJrrk36UduQIC/Mlr+94+zjyh5Dw3k/qSrlCmRHQHOYMm1z/LbO0QS3 js9GEsLvs1tHtLx6Z68jgqnnV5bDN9eC90k0v07W+lS97xNmXLUFJD+DdVY3eJg5xJPv avoRUjdC/9NNvm7tNfBNkF9bedlQhlKHCknsY= 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=5Y/bR8wUkGVGzhBdcSek4wesHYZCjuAjxxcejF3EnLQ=; b=Npx49Q+EKrlkjBUe3lzP0bTmcwt0Cz3QheSg5FNZmNlgX8vNe7JGCUeQuZ0FyYStNg LvAZtgqD4hfKKCZknDlBstOWhh8DDXFZspERZ8j8EJd6m1KaZGfznryX5hB8y3iaR/JC pmO8J4erduiwm5i6lmRb/U55fSqtxBE18ax5eSDA1NI+y8sIExnrsUu4HeM4/xaQ5REj 5b2XzEBqEASroPiK9qg8OjTXcEA/qlJUsBlMZ/zWx0GbK+b0y4YXa5+B8FSrEWcaekjk liH3sk17WCnbxnc7c98NexVUaNQwxLQvn/OZtghq74r2yM1A0mVw+vVOHglrN8A3nYdM ES4A== X-Gm-Message-State: AOAM531tqxzUot6laK1//uLHgUzhcopHYg0DHYkYYatBt8vjSw5+Qnju j0U1KlUzf+PBScrtztGf5uSdR+szc1PhPAyj X-Google-Smtp-Source: ABdhPJwrRC7K5JaxDH1dxaLMHt0oWawsg6o2vAz+cvnCpip29biFcoC7PxOtqLjPfeO80+9CVKOiOA== X-Received: by 2002:a2e:81d3:: with SMTP id s19mr728926ljg.446.1624908747386; Mon, 28 Jun 2021 12:32:27 -0700 (PDT) Received: from mail-lf1-f50.google.com (mail-lf1-f50.google.com. [209.85.167.50]) by smtp.gmail.com with ESMTPSA id b15sm1398318lff.186.2021.06.28.12.32.26 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Jun 2021 12:32:26 -0700 (PDT) Received: by mail-lf1-f50.google.com with SMTP id a18so12450556lfs.10 for ; Mon, 28 Jun 2021 12:32:26 -0700 (PDT) X-Received: by 2002:a19:7d04:: with SMTP id y4mr19397814lfc.201.1624908745815; Mon, 28 Jun 2021 12:32:25 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Linus Torvalds Date: Mon, 28 Jun 2021 12:32:09 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT PULL] scheduler changes for v5.14 To: Ingo Molnar Cc: Linux Kernel Mailing List , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Mel Gorman , Daniel Bristot de Oliveira , Thomas Gleixner , Andrew Morton Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jun 27, 2021 at 11:51 PM Ingo Molnar wrote: > > - Add "Core Scheduling" via CONFIG_SCHED_CORE=y, Grr. Why is this feature "default y"? I see no reason why anybody would enable it outside of cloud providers, which doesn't argue for it being on by default. Linus