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[23.128.96.18]) by mx.google.com with ESMTP id h26si3099130jaj.116.2021.09.22.07.35.36; Wed, 22 Sep 2021 07:35:50 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=oM85U9nN; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235464AbhIVOfH (ORCPT + 99 others); Wed, 22 Sep 2021 10:35:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232720AbhIVOfE (ORCPT ); Wed, 22 Sep 2021 10:35:04 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD576C061574 for ; Wed, 22 Sep 2021 07:33:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.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; bh=ob4/gKtPQhJS8Qy8WeXzgM72xF40FfzYjJVqa9qGLCE=; b=oM85U9nNhdOrk7qZICyp0UankB rQ486190awpYI4Vctn1ZUGRjgr4faGjBPuJhbalqzmVkMhK3RcX52DjQ2dc3ZdjdhHxwFTjU3+2mF 8nMdobCu7BAKWvVR/8KnZy6mwxKWwiLDheLFzm9kl51ln1nnj01smYYiTQIDmuIqtdsf/+l686JtH dvbZL9ICBsI0K8vjfYz+VhwMz+XC2w4GGYTsv90Q9aTlD9KuuJYEfWbK4uDuW85S7/Gd62coOrdbZ q7nMFMJpfBvWhgpfR6ifFHg4zhK0ZskFghX/ooAjxT4Rozl8bbIjJG96486CYnc+I8GdMPQ3wXBvz dh5MhFjQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mT3Hf-004rsC-NJ; Wed, 22 Sep 2021 14:31:55 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id B18679816EA; Wed, 22 Sep 2021 16:31:37 +0200 (CEST) Date: Wed, 22 Sep 2021 16:31:37 +0200 From: Peter Zijlstra To: Mel Gorman Cc: kernel test robot , LKML , x86@kernel.org, lkp@lists.01.org, lkp@intel.com, ying.huang@intel.com, feng.tang@intel.com, zhengjun.xing@linux.intel.com, aubrey.li@linux.intel.com, yu.c.chen@intel.com Subject: Re: [sched/fair] 56498cfb04: netperf.Throughput_tps -5.4% regression Message-ID: <20210922143137.GT4323@worktop.programming.kicks-ass.net> References: <20210912153447.GG25450@xsang-OptiPlex-9020> <20210922124400.GQ4323@worktop.programming.kicks-ass.net> <20210922134247.GY3959@techsingularity.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210922134247.GY3959@techsingularity.net> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 22, 2021 at 02:42:47PM +0100, Mel Gorman wrote: > For the LKP test, the nr_threads are 50% so I expect with two sockets, > the machine is fully loaded and would be vulnerable to load-balancing > artifacts as client and server threads move around. Hence, I ended up > thinking that this result was likely a false positive. Fair enough, lets ignore it for now then :-)