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=-1.1 required=3.0 tests=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 194B6C433E0 for ; Wed, 24 Jun 2020 08:45:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E84B120836 for ; Wed, 24 Jun 2020 08:45:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="BaMR/TH7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728910AbgFXIpQ (ORCPT ); Wed, 24 Jun 2020 04:45:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727057AbgFXIpP (ORCPT ); Wed, 24 Jun 2020 04:45:15 -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 34693C061573 for ; Wed, 24 Jun 2020 01:45:15 -0700 (PDT) Received: by mail-lj1-x244.google.com with SMTP id q19so1692515lji.2 for ; Wed, 24 Jun 2020 01:45:15 -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=BqaLUtl/X7a4g0u53ohS9LpEPRGxCSpsENOwnH2o2ws=; b=BaMR/TH7PhsFO1Q34q1x2qClsI7LOGwkyGbEQspz9ojX212XoSbqRRFRth4Meo/ssf 2uSK2GFHyed2vxpCFS8nAdnPkaKfIeDec0YV9QxJi/0DZp4NUqctsee+ogS3Fl1BjDdr a660g7JU0oHL6NyFbXA5+GIkWejIuD89yS0M8Tc8lB+t0JgR/JNVCSHJf9uU9wrnuIDa 47xkwZFkFxCVyhO1vbBzMyIe1gFadRmPD50scOKKWKTaSZrjIBowcWgIjP9XbV8XY1GP 3JSamKeGQOntN1He/c6PG2bUnQGEpAvzaZq9ATvao350qg1CFz7ECK/Ha/Dx5Jbn102c XDGQ== 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=BqaLUtl/X7a4g0u53ohS9LpEPRGxCSpsENOwnH2o2ws=; b=dT12qihjz9ySqkNoM7MXp0G2iYgme/ToaN561nkcdOrycFcLp3CSBZvTO/PVyqJp1G hs7wp+KwhGVNeov9EzVgc/2Gz9p/jKre1UEnXvbblgmolTr5wonuiX4mr/RFjP/C0guR UZzEIbPg1QkEwmd5C84C72/og2Y1THCDRB2HrXlSUZ03EqTdIeLwucZkQAfbTf0V8OTI iY4MPBcrsGxLplJq2p+B7TwvSrxEEIPzNVD49vLYipWX5PwlW6V/xoH50gTmnEwYpyhY XXY3Txo4r0Bh+wKtBA+TZ+xbaRFBQxRdkh/tBtJl8JUGGnZNM1sFt4qsaNfpHWD+X8Sr 6SJw== X-Gm-Message-State: AOAM532t0m+XTAKjz2sAHOUYlaNuVxNW5PlcVMhB7XeJBl+23JlInSJE 05wuKnrS1xquANn+Cc09LweIQwawo3dBa3JHimDvUw== X-Google-Smtp-Source: ABdhPJxliTcfapcUjxrmriw5iNjCcnVllOZAHYWf8QkB0iGUvYcf1ODkhqeeAxo4eRsnXoHPY0AN5BRFBvz+CFJpz5M= X-Received: by 2002:a2e:7f10:: with SMTP id a16mr13972228ljd.69.1592988313570; Wed, 24 Jun 2020 01:45:13 -0700 (PDT) MIME-Version: 1.0 References: <87v9k84knx.derkling@matbug.net> <20200603101022.GG3070@suse.de> <20200603165200.v2ypeagziht7kxdw@e107158-lin.cambridge.arm.com> <20200608123102.6sdhdhit7lac5cfl@e107158-lin.cambridge.arm.com> <20200611102407.vhy3zjexrhorx753@e107158-lin.cambridge.arm.com> <20200623154402.jfv5yhhrsbx7toes@e107158-lin.cambridge.arm.com> In-Reply-To: <20200623154402.jfv5yhhrsbx7toes@e107158-lin.cambridge.arm.com> From: Vincent Guittot Date: Wed, 24 Jun 2020 10:45:01 +0200 Message-ID: Subject: Re: [PATCH 1/2] sched/uclamp: Add a new sysctl to control RT default boost value To: Qais Yousef Cc: Mel Gorman , Patrick Bellasi , Dietmar Eggemann , Peter Zijlstra , Ingo Molnar , Randy Dunlap , Jonathan Corbet , Juri Lelli , Steven Rostedt , Ben Segall , Luis Chamberlain , Kees Cook , Iurii Zaikin , Quentin Perret , Valentin Schneider , Pavan Kondeti , linux-doc@vger.kernel.org, linux-kernel , linux-fs Content-Type: text/plain; charset="UTF-8" Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hi Qais, On Tue, 23 Jun 2020 at 17:44, Qais Yousef wrote: > > Hi Vincent > > On 06/11/20 14:01, Vincent Guittot wrote: > > On Thu, 11 Jun 2020 at 12:24, Qais Yousef wrote: > > [...] > > > > > Strange because I have been able to trace them. > > > > > > On your arm platform? I can certainly see them on x86. > > > > yes on my arm platform > > Sorry for not getting back to you earlier but I have tried several things and > shared my results, which you were CCed into all of them. > > I have posted a patch that protects uclamp with a static key, mind trying it on > your platform to see if it helps you too? I have run some tests with your latest patchset and will reply to the email thread below > > https://lore.kernel.org/lkml/20200619172011.5810-1-qais.yousef@arm.com/ > > Thanks > > -- > Qais Yousef