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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 7F711C433EF for ; Wed, 22 Sep 2021 14:33:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6206360F26 for ; Wed, 22 Sep 2021 14:33:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236155AbhIVOfI (ORCPT ); Wed, 22 Sep 2021 10:35:08 -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 :-) From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============9197833327623295271==" MIME-Version: 1.0 From: Peter Zijlstra To: lkp@lists.01.org Subject: Re: [sched/fair] 56498cfb04: netperf.Throughput_tps -5.4% regression Date: Wed, 22 Sep 2021 16:31:37 +0200 Message-ID: <20210922143137.GT4323@worktop.programming.kicks-ass.net> In-Reply-To: <20210922134247.GY3959@techsingularity.net> List-Id: --===============9197833327623295271== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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 :-) --===============9197833327623295271==--