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[209.132.180.67]) by mx.google.com with ESMTP id w10si10497820pgr.136.2018.02.20.05.05.58; Tue, 20 Feb 2018 05:06:21 -0800 (PST) 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=bombadil.20170209 header.b=keB2oPEA; 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 S1752436AbeBTNER (ORCPT + 99 others); Tue, 20 Feb 2018 08:04:17 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:46466 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752094AbeBTNCG (ORCPT ); Tue, 20 Feb 2018 08:02:06 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=3E53YfdMFaLwTGdChsbBG4vhpOcyj2uD/5d7hzWVsf4=; b=keB2oPEAh1FH3c273XtEfCuJP Vb1Aci0hy3JG0H+wKD4jskItd6RznDuAr1NKN+bA/mG6fNgwRSqwLI9XzZHTEWsD63LJVEBuG5KDH 0YU38a6JUjLhsxUxNmQdZRJ+SikmaPiKegEampfFGSlz22eT8cqWQiHPX35T5PQtHrQS8M/xbKSVv tTt4aX3EUyruW+qlYpnleZ+QuqH7Z1HkHpcbBdoz5gBNWklQRWv96YFi48xEM89y2QcdnS08Jclw5 G0w8NHrk921VcKAQF721qz54Y/fIQMrMEXf7l2iQMvrvtNHCfWMc4x4PRmvG0VYhDZSZsosAqMbAN eZVxX1iGw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.89 #1 (Red Hat Linux)) id 1eo7YS-0005vX-Dd; Tue, 20 Feb 2018 13:01:56 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id C3256203895D1; Tue, 20 Feb 2018 14:01:53 +0100 (CET) Date: Mon, 19 Feb 2018 14:58:42 +0100 From: Peter Zijlstra To: Morten Rasmussen Cc: mingo@redhat.com, valentin.schneider@arm.com, dietmar.eggemann@arm.com, vincent.guittot@linaro.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/7] sched/fair: Add group_misfit_task load-balance type Message-ID: <20180219135842.GM25235@hirez.programming.kicks-ass.net> References: <1518711654-23503-1-git-send-email-morten.rasmussen@arm.com> <1518711654-23503-3-git-send-email-morten.rasmussen@arm.com> <20180219135644.GG25181@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180219135644.GG25181@hirez.programming.kicks-ass.net> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 19, 2018 at 02:56:44PM +0100, Peter Zijlstra wrote: > On Thu, Feb 15, 2018 at 04:20:49PM +0000, Morten Rasmussen wrote: > > @@ -6733,9 +6758,12 @@ done: __maybe_unused > > if (hrtick_enabled(rq)) > > hrtick_start_fair(rq, p); > > > > + update_misfit_status(p, rq); > > + > > return p; > > > > idle: > > + update_misfit_status(NULL, rq); > > new_tasks = idle_balance(rq, rf); > > > > /* > > So we set a point when picking a task (or tick). We clear said pointer > when idle. N/m, I can't read today. You only store the load, not the actual task.