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 D92F6C43381 for ; Mon, 1 Apr 2019 09:09:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D5DB20896 for ; Mon, 1 Apr 2019 09:09:55 +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="ZJ02z4qD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725895AbfDAJJy (ORCPT ); Mon, 1 Apr 2019 05:09:54 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:48072 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725820AbfDAJJx (ORCPT ); Mon, 1 Apr 2019 05:09:53 -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=fpH3VaWxqvEOoGMV9gNtzLj8g9z7qMYmZikJLueItbQ=; b=ZJ02z4qDIcjjPVsl41leEFTWa L2JAeaXTqDDEsv6dcJ12HDKJw7i2X1SzVvekIY/mDvD1Z0l/UzGPPbeRG17fPxpReDpTrG1vAZP3S SCBErTLQikNlyupMvZ86tyu+oba9vL/1mWriWQ00617aKC7RZYdzTXd4MBPPE+mcEcd1MtGG8+3Fk MymPnLGnD0RG/8CZFX2Z3EWrSRaMw7lucwMOxL8aGaWNYn4k8KQ58afjDz6V/lLrlTzZZ02+5ccH/ vpH1uWEd903bMCSS/RO5YeoXHQSFqH6NLTZ+FG37YBu0ERb7T8G2S+pMopeosM0ApK6eXH6elcjZx 8/atIFTgQ==; 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 1hAswr-0004iw-2z; Mon, 01 Apr 2019 09:09:45 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 6A2AC2026BE95; Mon, 1 Apr 2019 11:09:43 +0200 (CEST) Date: Mon, 1 Apr 2019 11:09:43 +0200 From: Peter Zijlstra To: Alex Kogan Cc: linux@armlinux.org.uk, mingo@redhat.com, will.deacon@arm.com, arnd@arndb.de, longman@redhat.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, bp@alien8.de, hpa@zytor.com, x86@kernel.org, steven.sistare@oracle.com, daniel.m.jordan@oracle.com, dave.dice@oracle.com, rahul.x.yadav@oracle.com Subject: Re: [PATCH v2 0/5] Add NUMA-awareness to qspinlock Message-ID: <20190401090943.GG11158@hirez.programming.kicks-ass.net> References: <20190329152006.110370-1-alex.kogan@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190329152006.110370-1-alex.kogan@oracle.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 Fri, Mar 29, 2019 at 11:20:01AM -0400, Alex Kogan wrote: > The following locktorture results are from an Oracle X5-4 server > (four Intel Xeon E7-8895 v3 @ 2.60GHz sockets with 18 hyperthreaded > cores each). The other interesting number is on a !NUMA machine. What do these patches do there? Remember, most people do not in fact have numa.