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,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 1E870C2BB55 for ; Thu, 16 Apr 2020 13:00:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E94AB206B9 for ; Thu, 16 Apr 2020 13:00:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="Vlnaxe6q" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2894698AbgDPNAb (ORCPT ); Thu, 16 Apr 2020 09:00:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51426 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S2894531AbgDPNA0 (ORCPT ); Thu, 16 Apr 2020 09:00:26 -0400 Received: from mail-lj1-x244.google.com (mail-lj1-x244.google.com [IPv6:2a00:1450:4864:20::244]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5243BC061A0C for ; Thu, 16 Apr 2020 06:00:25 -0700 (PDT) Received: by mail-lj1-x244.google.com with SMTP id q22so7760999ljg.0 for ; Thu, 16 Apr 2020 06:00:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=AeHBEnFZl+NhqzR7wy4wT03tgSkivqbCYEDT2pt/LpM=; b=Vlnaxe6qX46DWb/BlxfTeRcY1RfKgPd4fVHtCo1BUdk2xf8cJQLT9s9H0zQjV+qM/X zxr12p6j8NiKKVxcLIhQBuehVsQaqlu6qvlhrERADHgSp/ByVSUsBkz27nSFJLN90g9o p6qvP5YQ+F3A3XNKOQBAKlkPO+hCc/yFiBZEHrZa+/4BlcT4ZDzql13/neJ40Xr89cql L9hFAv1RkFhHuOQQtD06H01CvkA+dZTYnpdJZ7Vw+bwPWWdMDeJulf+uRGlfSYlYwBX6 hpimNkbTXOrb6Tf3hISoslFzBiC0vAsACYMiAMaa9iCW8Lb36jwVKJSKfoIrkNlmDi8H EdoA== 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=AeHBEnFZl+NhqzR7wy4wT03tgSkivqbCYEDT2pt/LpM=; b=rUMQ0E4zDfjHs87namLss0Lkd/ePWBwjRPTrF+ErDjS0oezNuAtXTcHSCd4mBSgggY +jLCJI/HnoRlAgp7ernEd6Y4diteR7q+hjr9zSkLOlhl8oI+uCgpdvQM003KCUPLJT9S nZHy81tVsmFJLeRTCQyIyFX8P4nI98WdG3ETFYkTSCoKpN5RcKn9xTZVZzT0QEngmGZW ekdNALkBEfoFLm0UPYz0qnhDCkxdy4R4Ytz6nKiJxllK/RuEZQIJmYlgzFYJhn61I497 gOoVislLs0CxsBO4y7J3vtVYM3goMGhauXVfFCKhcOBHJ6y9NGMJpvcKRRh4WlIbDfJ6 c+WQ== X-Gm-Message-State: AGi0PuY+tWA0K9lYYBeHyACXJgKQn1T9XXKyD4bhGvZg35+jvi4bcBdN SPhEmBi5nSZ6Sp6EUzpUPy2e/67qoVFEt31IqRqJkw== X-Google-Smtp-Source: APiQypITgGoC5uuQ/8MnWQvY44uoOclkk8R7KZ9pL5IBd8IKcD5V7eaxCdyozjE7KD6zKsfsYbX6eyVPGBv+/Lq3PRU= X-Received: by 2002:a2e:7c1a:: with SMTP id x26mr5955613ljc.209.1587042023468; Thu, 16 Apr 2020 06:00:23 -0700 (PDT) MIME-Version: 1.0 References: <20200415210512.805-1-valentin.schneider@arm.com> <20200416105828.GN20730@hirez.programming.kicks-ass.net> <20200416110056.GT20760@hirez.programming.kicks-ass.net> In-Reply-To: <20200416110056.GT20760@hirez.programming.kicks-ass.net> From: Vincent Guittot Date: Thu, 16 Apr 2020 15:00:12 +0200 Message-ID: Subject: Re: [PATCH v3 0/9] sched: Streamline select_task_rq() & select_task_rq_fair() To: Peter Zijlstra Cc: Valentin Schneider , linux-kernel , Ingo Molnar , Dietmar Eggemann , Juri Lelli , Steven Rostedt 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, 16 Apr 2020 at 13:01, Peter Zijlstra wrote: > > On Thu, Apr 16, 2020 at 12:58:28PM +0200, Peter Zijlstra wrote: > > On Wed, Apr 15, 2020 at 10:05:03PM +0100, Valentin Schneider wrote: > > > Valentin Schneider (9): > > > sched/fair: find_idlest_group(): Remove unused sd_flag parameter > > > sched/debug: Make sd->flags sysctl read-only > > > sched: Remove checks against SD_LOAD_BALANCE > > > sched/topology: Kill SD_LOAD_BALANCE > > > sched: Add WF_TTWU, WF_EXEC wakeup flags > > > > How about I queue two first 5, and you rework these last few? > > Argh, 4 ofcourse, that 5th patch doesn't make much sense if we have to > rework those flags like I proposed. Looks good to me too > > > > sched: Kill select_task_rq()'s sd_flag parameter > > > sched/fair: Dissociate wakeup decisions from SD flag value > > > sched/fair: Split select_task_rq_fair want_affine logic > > > sched/topology: Define and use shortcut pointers for wakeup sd_flag scan > > > >