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=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 E70B4C04E53 for ; Wed, 15 May 2019 16:44:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AC01220873 for ; Wed, 15 May 2019 16:44:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="klUG8QeF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727386AbfEOQoS (ORCPT ); Wed, 15 May 2019 12:44:18 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:41004 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726645AbfEOQoS (ORCPT ); Wed, 15 May 2019 12:44:18 -0400 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=5ezG1QqiXOsGRIp+0lQFxeCPHGaBgx8UHJEuCr5YONE=; b=klUG8QeFGmsCRjeSJK/tDVlTy tdK1XAdGw7GzfngQy2PAeSbPud32JoJrsqrb6OxUAzgnTVOTk9XWdXB3jg0kXcG9QBwxxeiRZOyBP sH9afp9Ry4qtgzgHVgawvA3OzeZekW+/t8pwgbm8/68eQADOWqIQaD2kSrtzy80mJtw6IUzZzEC/2 YjIowxQ9cYpgIAFOTXpo+cFxOrxzDLUKJUnXmn5MlHF4Y8Aon4c6iVjsqPXCxI3DsW7ousEEJLYEC Zsu4XJKw2tiMsWLI6bH63HdsKUH0kxBLcB5E68MpnvVpnqJ89CDLsX/YgJxuba5vN/Edzvr4JIgxu P9zslws4Q==; 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 1hQx0p-0007zE-MC; Wed, 15 May 2019 16:44:15 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 302932029906B; Wed, 15 May 2019 18:44:14 +0200 (CEST) Date: Wed, 15 May 2019 18:44:14 +0200 From: Peter Zijlstra To: Parth Shah Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, mingo@redhat.com, dietmar.eggemann@arm.com, dsmythies@telus.net Subject: Re: [RFCv2 6/6] sched/fair: Bound non idle core search by DIE domain Message-ID: <20190515164414.GY2589@hirez.programming.kicks-ass.net> References: <20190515135322.19393-1-parth@linux.ibm.com> <20190515135322.19393-7-parth@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190515135322.19393-7-parth@linux.ibm.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 15, 2019 at 07:23:22PM +0530, Parth Shah wrote: > This patch specifies the sched domain to search for a non idle core. > > The select_non_idle_core searches for the non idle cores across whole > system. But in the systems with multiple NUMA domains, the Turbo frequency > can be sustained within the NUMA domain without being affected from other > NUMA. > > This patch provides an architecture specific implementation for defining > the turbo domain to make searching of the core to be bound within the NUMA. NAK, this is insane. You don't need arch hooks to find the numa domain.