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 E14E2C433ED for ; Wed, 28 Apr 2021 16:56:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A7E506143C for ; Wed, 28 Apr 2021 16:56:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241368AbhD1Q5R (ORCPT ); Wed, 28 Apr 2021 12:57:17 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:49252 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241340AbhD1Q5P (ORCPT ); Wed, 28 Apr 2021 12:57:15 -0400 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1619628989; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=hcjfKGsDUtZIm8NkZRo5Z9ImIbSWx7ZUl7/bQCsDzSA=; b=veY7OyHT63EGaVlw/w9Z99/o5BgyI0d4czHBFdspTtcYHheb689AV/UAVgIZzSjbXmG8js Ji/3ccq3EIz33tMLHblpFkiU6jI2B1DvOvbyrjWZrxeSG2bnW9f+Xj7kl5XSJkE4VNGDT8 ERh/ezmaRUyONyBLwlBwNBVvsHwmYR1DvF0b4Ra2AmVlCTDkUnZf58OTlqGkP3XEItkkng MSH/gIYa6SbqwHiEV1mf9lOGhn3Gi+2Pq6wzhnAlDLf4NNkqyM7dUEgkSOxMMPqKsmiydE IrvmoJdvV26X1IQvYlHQiGN4sN5j0uhUZxOZnIGuc5ZaXxEtqhfm8R1/8kUvww== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1619628989; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=hcjfKGsDUtZIm8NkZRo5Z9ImIbSWx7ZUl7/bQCsDzSA=; b=qEpMcwOYuFwl4uZ259mGVlC75/RmDvgQV/rjWXCIAlOZgzxCQzCc4xMYs6MaiR3DJAX7MW PZQC6hS9vPwessBw== To: Philip Li Cc: Feng Tang , "Song Bao Hua \(Barry Song\)" , Ingo Molnar , LKML , "lkp\@lists.01.org" , "lkp\@intel.com" , "zhengjun.xing\@intel.com" , "x86\@kernel.org" Subject: Re: [LKP] Re: [genirq] cbe16f35be: will-it-scale.per_thread_ops -5.2% regression In-Reply-To: <20210428152339.GA2282261@pl-dbox> References: <20210427090013.GG32408@xsang-OptiPlex-9020> <87fszcnecr.ffs@nanos.tec.linutronix.de> <20210428050758.GB52098@shbuild999.sh.intel.com> <20210428080819.GB53821@shbuild999.sh.intel.com> <87o8dyn5xr.ffs@nanos.tec.linutronix.de> <20210428152339.GA2282261@pl-dbox> Date: Wed, 28 Apr 2021 18:56:29 +0200 Message-ID: <874kfqmjpe.ffs@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Philip, On Wed, Apr 28 2021 at 23:23, Philip Li wrote: > On Wed, Apr 28, 2021 at 10:56:16AM +0200, Thomas Gleixner wrote: >> On Wed, Apr 28 2021 at 16:08, Feng Tang wrote: >> > On Wed, Apr 28, 2021 at 07:01:35AM +0000, Song Bao Hua (Barry Song) wrote: >> > >> >> But it is still an irrelevant problem. >> > Yes, the commit itself has no problem. And my personal thought >> > is no further action is needed. >> >> The commit does not need any further action, but this testing stuff > Sorry Thomas for confusion and trouble caused by this. We will take it > seriously to refine the report process for this category (alignment or > cache behavior) of performance change, to avoid meaningless ones. Things go wrong every now and then. As long as we figure it out and stuff gets fixed, no problem. Thanks, tglx