From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=Z/Yg=ZW=vger.kernel.org=linux-kernel-owner@kernel.org>
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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,
	MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 49E38C432C0
	for <linux-kernel@archiver.kernel.org>; Sat, 30 Nov 2019 21:32:16 +0000 (UTC)
Received: from vger.kernel.org (vger.kernel.org [209.132.180.67])
	by mail.kernel.org (Postfix) with ESMTP id 1C2392082E
	for <linux-kernel@archiver.kernel.org>; Sat, 30 Nov 2019 21:32:15 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1727280AbfK3Vb7 (ORCPT
        <rfc822;linux-kernel@archiver.kernel.org>);
        Sat, 30 Nov 2019 16:31:59 -0500
Received: from mx2.suse.de ([195.135.220.15]:60382 "EHLO mx1.suse.de"
        rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP
        id S1727025AbfK3Vb6 (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Sat, 30 Nov 2019 16:31:58 -0500
X-Virus-Scanned: by amavisd-new at test-mx.suse.de
Received: from relay2.suse.de (unknown [195.135.220.254])
        by mx1.suse.de (Postfix) with ESMTP id AAF7CB225;
        Sat, 30 Nov 2019 21:31:56 +0000 (UTC)
Date:   Sat, 30 Nov 2019 13:27:29 -0800
From:   Davidlohr Bueso <dave@stgolabs.net>
To:     Mariusz Ceier <mceier@gmail.com>
Cc:     kernel test robot <rong.a.chen@intel.com>,
        Ingo Molnar <mingo@kernel.org>,
        Davidlohr Bueso <dbueso@suse.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>,
        Borislav Petkov <bp@alien8.de>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        LKML <linux-kernel@vger.kernel.org>, lkp@lists.01.org
Subject: Re: [x86/mm/pat] 8d04a5f97a: phoronix-test-suite.glmark2.0.score
 -23.7% regression
Message-ID: <20191130212729.ykxstm5kj2p5ir6q@linux-p48b>
References: <20191127005312.GD20422@shao2-debian>
 <CAJTyqKPstH9PYk1nMuRJWnXUPTf9wAkphPFi9Yfz6PApLVVE0Q@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Disposition: inline
In-Reply-To: <CAJTyqKPstH9PYk1nMuRJWnXUPTf9wAkphPFi9Yfz6PApLVVE0Q@mail.gmail.com>
User-Agent: NeoMutt/20180716
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Sat, 30 Nov 2019, Mariusz Ceier wrote:

>I can also confirm this - just bisected framebuffer rendering
>performance regression on amdgpu and
>8d04a5f97a5fa9d7afdf46eda3a5ceaa973a1bcc is the first bad commit
>(leading to drop from around 260-300fps to about 60fps in CS:GO on
>Fury X).

This is a third report now. Could you please provide the contents
of the following file, before and after the offending commit.

	/sys/kernel/debug/x86/pat_memtype_list

This will show any attribute differences in the tree, which is likely
the culprit.

Thanks,
Davidlohr