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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>
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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