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[23.128.96.18]) by mx.google.com with ESMTP id l14si7250693ejz.622.2020.09.14.09.08.15; Mon, 14 Sep 2020 09:08:38 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=UfoqPWpk; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726478AbgINQGr (ORCPT + 99 others); Mon, 14 Sep 2020 12:06:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52634 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726044AbgINQEE (ORCPT ); Mon, 14 Sep 2020 12:04:04 -0400 Received: from mail-lf1-x141.google.com (mail-lf1-x141.google.com [IPv6:2a00:1450:4864:20::141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5F3DEC061788 for ; Mon, 14 Sep 2020 09:03:38 -0700 (PDT) Received: by mail-lf1-x141.google.com with SMTP id z19so14031944lfr.4 for ; Mon, 14 Sep 2020 09:03:38 -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=IV/LGfYBD2Y8emqFam5XyX3wpoNSeeY/CKtIn8gQg6I=; b=UfoqPWpkcfltK4Qgb4pE5DCSyHsfqGzEJkWK/hRJRcK+CkuOMABdsALEdi18ZzSabw U1tTkHjtehSsRpB+fQXpvDsUuY6EhYWl+H7FhEqHg5P0qKYdefzShPtxPN52WSJMb/Tb VDNhLX/ZeYsItUjVyLgyDIGKx6kMyyl+Jzew/lTARt1KyVx7+PoguMFqhRPm6Ead2XeN etprwLuPm6zpWx3DouO3T+PW31f509E023CS/6NedKGSfQ6qK2rqmgWdtMl5yHY4lG59 tBBsgarndPizkIbXOCloHf/6ChULFsIkyPXVHoF0U+VGNViv4ft2qhrvpwULlptTYccA HdJw== 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=IV/LGfYBD2Y8emqFam5XyX3wpoNSeeY/CKtIn8gQg6I=; b=Wz/segoeKupbfInJkr5KO3yMct8cZxIVpT5+xOyKN1+kLv8HViP2KRX2CD0/sAhRvE zqUBfHf926t2V8vBmWXMvjP8KPYMxivlKh6JziTy2KZiPOP+TDRaGE6MbDAo6lRfMWTX wLQBVi2MNGQiJ1Bq4/03yozEgn4H8iyRIiDusSUgqRTy9Q26Pr04cbKq1KqKc3bB0EYf f0jVssQEeK3780HX6Lz5TYd2QCwhGFPEhwVTkZZXGfVCdAy4roABsv+wZL1VesQxJ8T6 RUzLzkgV3VueYyR9JAyt5MU5mijdgSZ4Xuz4U59GwrfLidwZ47HXZvKhxdE59XbnZ+3v TZ8Q== X-Gm-Message-State: AOAM531ZNc83FFmdVW3RuxSF840PCKI+QvhGC1eqNjVyFGgiozfVmuxR gPQ5NUFS85OMRIjYa3krvLHr+uduJie/xidgFm26XA== X-Received: by 2002:ac2:43c2:: with SMTP id u2mr4453170lfl.573.1600099416756; Mon, 14 Sep 2020 09:03:36 -0700 (PDT) MIME-Version: 1.0 References: <20200914100340.17608-1-vincent.guittot@linaro.org> <20200914114202.GQ1362448@hirez.programming.kicks-ass.net> <20200914125309.GA4008@lorien.usersys.redhat.com> In-Reply-To: <20200914125309.GA4008@lorien.usersys.redhat.com> From: Vincent Guittot Date: Mon, 14 Sep 2020 18:03:23 +0200 Message-ID: Subject: Re: [PATCH 0/4] sched/fair: Improve fairness between cfs tasks To: Phil Auld Cc: Peter Zijlstra , Ingo Molnar , Juri Lelli , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , linux-kernel , Valentin Schneider 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 Mon, 14 Sep 2020 at 14:53, Phil Auld wrote: > > On Mon, Sep 14, 2020 at 01:42:02PM +0200 peterz@infradead.org wrote: > > On Mon, Sep 14, 2020 at 12:03:36PM +0200, Vincent Guittot wrote: > > > Vincent Guittot (4): > > > sched/fair: relax constraint on task's load during load balance > > > sched/fair: reduce minimal imbalance threshold > > > sched/fair: minimize concurrent LBs between domain level > > > sched/fair: reduce busy load balance interval > > > > I see nothing objectionable there, a little more testing can't hurt, but > > I'm tempted to apply them. > > > > Phil, Mel, any chance you can run them through your respective setups? > > > > Yep. I'll try to get something started today, results in a few days. Thanks Phil > > These look pretty inocuous. It'll be interesting to see the effect is. > > > Cheers, > Phil > -- >