Received: by 2002:ac0:a5b6:0:0:0:0:0 with SMTP id m51-v6csp4551230imm; Wed, 30 May 2018 07:41:10 -0700 (PDT) X-Google-Smtp-Source: ADUXVKIhE4cY5yc4T1mJQMTGIO3Qtj3+7hFlZVDFUiuVSkrmyjZN3HTZIgHrBvjshtfH3tgRkYXR X-Received: by 2002:a63:7b03:: with SMTP id w3-v6mr2528794pgc.52.1527691270926; Wed, 30 May 2018 07:41:10 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1527691270; cv=none; d=google.com; s=arc-20160816; b=jAd5tGK1QOBDaux4RvJPK0qjHRYhc5cWXw0WJKGr9so8w6EBIqMOFOV6r7pkUnrkx/ vqPcbPhtj5JjTEDprpZv2ma0PQqo2BM2nV0XgB6BF06uZnxbDidYeiVZvKRLo50okAox MapmPxVe8Oninho10UeWOXyWfwlOUXkwNqGzPvhmmkR8WMbp9Id6BbN2tE/QOZ3h5z7K wA/38NrQw2lp10OHfl3FtCUEqtzoyKaCrJ94U56dInzpAgQ1Cvdp/rz8xIdKkSNT/FQo 1XWLakhCB3d45ctlBi87eT5BwMrLiBpFILrCWY3iSQXN0PeW5jbllcBYVj+ua6cP6mhy 8a0Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:subject:cc:to:from:date:user-agent :message-id:dkim-signature:arc-authentication-results; bh=7ilOGGbntyqKsduiHhaqM5n7QWhVFHtofopfEErZWPg=; b=sHb14yYu0erlrerquMMKlVXJI1Tt1/eBNoJ3Yqd6xnQ5MMXbEty4gHK8ANYKDGjXcr rLUlZkJU3hL0vbM8L+WyZ/R5Du1W7X8rLwsUwKGv2frUuRaHqn1z7sxOkRMilP9f/hpH 638zbd0/CcFUn5FBAPsMpP82kuHnNrIMjz4TbgbGAOmNMlTHEkjgHGO9IHp1hTefwtsp ZDv9nf8zxN7eanfCCTArUPv8NXMDGY55sfDjSxE1bcoDEz1S2jxjoOgC2EmSTAnwA90N nJ7oLvqQ6o+gnoNFLvOExBsnYk6lZC8ptfdEQusvhsCrtEmwjWT42TQDkzYg1D12XE28 JfJA== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=WxL/5k12; 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 a21-v6si10653631pls.237.2018.05.30.07.40.56; Wed, 30 May 2018 07:41:10 -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=bombadil.20170209 header.b=WxL/5k12; 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 S1751735AbeE3OhR (ORCPT + 99 others); Wed, 30 May 2018 10:37:17 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:59078 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750990AbeE3OhQ (ORCPT ); Wed, 30 May 2018 10:37:16 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Subject:Cc:To:From:Date:Message-Id: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=7ilOGGbntyqKsduiHhaqM5n7QWhVFHtofopfEErZWPg=; b=WxL/5k12bDlvvF7+5+AqYz5/M IVZ9DxRf9EWJkL5LLYLUi+URl4QSzThNfOgnRZzE+cFzeZ0AV9xOnOuPBL/SXuALxIYMw7WS91xy5 TTh3+/2dJ1RUOzTUTQu809We5mrFFHGMrVGaoSHxDbTiGe2yhCVdg+n97QMfq9KY6Xk9XpKqnZiLs teCBIDjq3ZMliK/qj0Hqzk0ah1s0NGrgHKIRQmhq++OEH2zoCYk87hSGTK6GOUqUWlyLUzUsGskl+ yAAzyV1uEmqXLgeCvdBLg01IkSWSmeq4MBcbo64b65EcXUg0KWjn98T6lQam3CDCIHSmtnnJeFiJc PM3PCaA2Q==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fO2Dv-0004VA-38; Wed, 30 May 2018 14:37:11 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id 7296D201EA7AB; Wed, 30 May 2018 16:37:09 +0200 (CEST) Message-Id: <20180530142236.667774973@infradead.org> User-Agent: quilt/0.63-1 Date: Wed, 30 May 2018 16:22:36 +0200 From: Peter Zijlstra To: mingo@kernel.org, linux-kernel@vger.kernel.org Cc: subhra.mazumdar@oracle.com, steven.sistare@oracle.com, dhaval.giani@oracle.com, rohit.k.jain@oracle.com, umgwanakikbuti@gmail.com, matt@codeblueprint.co.uk, riel@surriel.com, peterz@infradead.org Subject: [RFC 00/11] select_idle_sibling rework Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, This is all still very preliminary and could all still go up in flames (it has only seen hackbench so far). This is mostly the same code I posted yesterday, but hopefully in a more readable form. This fixes the SIS_PROP as per the outline here: https://lkml.kernel.org/r/20180425153600.GA4043@hirez.programming.kicks-ass.net and Rohit's suggestion of folding the iteration loops. For testing I would suggest to ignore the last 3 patches, those are purely cleanups once the first lot is found to actually work as advertised.