Received: by 2002:ac0:a5a6:0:0:0:0:0 with SMTP id m35-v6csp1781467imm; Fri, 7 Sep 2018 06:09:28 -0700 (PDT) X-Google-Smtp-Source: ANB0VdZyoHGRRpfHFlPU6HykzFvS6iqncEmSCuX1FONibonGqNVUwp56UxzSqs2xBM8sMK9q339S X-Received: by 2002:a63:991a:: with SMTP id d26-v6mr8154613pge.159.1536325768067; Fri, 07 Sep 2018 06:09:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1536325768; cv=none; d=google.com; s=arc-20160816; b=eA6+xA/pPe6GNRhNLyOMyj/KpQN125opdEk7fGYNL3d42LHwHZfDnkjvlTZ0Y+THiB RW+LpQuivKueKPbQ71TEmsiMYEcrEsmC2PbLNRUrSzBB1Chmh5++KVYTFzwWXnWfyiRL 8Ue+WBjTKKrsJ+MRik2RrK/r2wftnGDIlaRa0IJdiUdadguVDrgo+1TwWpdt5+XgDhHN 9Dv30C9fWsMNSawzvJ5jcaZnzZDiNJETM9SBX5wGG4foKzSjRmDlnj4AtBYqv+zp7w4a Y1vyiI6NbF/wJUwvDqACnTXzk3+YyOJs8bvqsOOxq0NVOLGlTRdpa6tQnpS5tHb+n0qq tX5A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=Gj6ING5DZsZIPCTxNA2w1QSRTXRuP/N6wfki6Phem5Q=; b=ZIEUSYg1aKf3FFMsGjczfu7q1Gzrs3vj+LgX/A8yiugKgb/C8CnA/C3ZisCzDemyY8 QeoeQkRiDTOZYSebcLAbfNUXMGfRqymzoCZPVmTF7e+3Ez617my8yLpsFi34QL7Ssf+W u6uZo2FQUXZmak/8izeQP1EWyfCNM6jizWy7dJlOQTP9+N6QLWaGVKs2pP5UtuoAx8Oh /QRjYOSoyRc/wTSQQwtbybedCnwrfrIdzx6KjOWTkrIC0dxgyzvKdLTHqQwdrzZNLJlL FoS4lsMjJyG3kiWdzfSD7kK8S+m1dLMCCuf6cPKEv+PQdT9yrbJsLUQU0hUjXVpDVhIO mV4Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=merlin.20170209 header.b=WU74o4YH; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q65-v6si8064447pga.283.2018.09.07.06.09.12; Fri, 07 Sep 2018 06:09:28 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=merlin.20170209 header.b=WU74o4YH; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728347AbeIGRXp (ORCPT + 99 others); Fri, 7 Sep 2018 13:23:45 -0400 Received: from merlin.infradead.org ([205.233.59.134]:55932 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727692AbeIGRXp (ORCPT ); Fri, 7 Sep 2018 13:23:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=Gj6ING5DZsZIPCTxNA2w1QSRTXRuP/N6wfki6Phem5Q=; b=WU74o4YHLPjiws9JmIghucD9h fJbfnVUIluwi2KCdCmFW1nocjw/F3ZRoA8kBZkraoMkFJbZR547UBAP96tLgHwzMmltdQApnRTSI7 e11ukJBhOqvgzAxJaUna31cakVk7vUa5pQ0YhHqhhvK7eE30SRpFqloZpfwUV/kMDEzJihqPNf751 p2I8imI8CeyH2KGf6E08BE8ty8sq4+45bwAWOI09vi0Onmj6qd8BC83d65szSLSvsmMBLmTnSqCbx TnujLU2IMu5Y87StiFJI23b/H3C/8n1+Z+I7oDJFcwUySmYEDd0rxe9IVAb34/2fzXsySqw974tj8 69uniEJtQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fyG69-00021J-IV; Fri, 07 Sep 2018 12:42:53 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 3BA8E205937FE; Fri, 7 Sep 2018 14:42:52 +0200 (CEST) Date: Fri, 7 Sep 2018 14:42:52 +0200 From: Peter Zijlstra To: Qais Yousef Cc: Vincent Guittot , mingo@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 3/4] sched/topology: remove smt_gain Message-ID: <20180907124252.GM24082@hirez.programming.kicks-ass.net> References: <1535548752-4434-1-git-send-email-vincent.guittot@linaro.org> <1535548752-4434-4-git-send-email-vincent.guittot@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 29, 2018 at 03:08:38PM +0100, Qais Yousef wrote: > It was hard to track the history of this and *why* it's needed. Yeah, my bad.. So at some point I wanted to do dynamic capacity and dynamic smt gain by using the x86 APERF/MPERF stuff. But it never quite worked and we got stuck with the remnants.