From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 82050] R9270X pyrit benchmark perf regressions with latest kernel/llvm Date: Tue, 12 Aug 2014 11:47:47 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1416559166==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 306FB6E050 for ; Tue, 12 Aug 2014 04:47:47 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1416559166== Content-Type: multipart/alternative; boundary="1407844067.83Fc36C30.14918"; charset="us-ascii" --1407844067.83Fc36C30.14918 Date: Tue, 12 Aug 2014 11:47:47 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=82050 --- Comment #10 from Andy Furniss --- (In reply to comment #9) > Created attachment 104475 [details] [review] > Flush HDP cache via the ring on SI > > Does this patch help for the kernel regression? > > Though this seems to make some piglit test results unstable... There is no difference with this. FWIW I found another regression with this kernel that is caused by the same commit. Maybe regression is the wrong word, as there was already an issue, just it's worse now. I will file a separate bug in time (was planning to do new xorg and retest first) but in summary - Unigine Valley always did have some 1/2 to 1 sec pauses ever since I could run it, first on HD4890 and now radeonsi R9 270X. Since this kernel commit they are 2 to 4 times longer - also unchanged by patch. Strangely, if I use ffmpegs x11 grab to make a recording @ 30fps they become short again. -- You are receiving this mail because: You are the assignee for the bug. --1407844067.83Fc36C30.14918 Date: Tue, 12 Aug 2014 11:47:47 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 10 on bug 82050 from 
(In reply to comment #9)
> Created attachment 104475 [details] [review] [review]
> Flush HDP cache via the ring on SI
> 
> Does this patch help for the kernel regression?
> 
> Though this seems to make some piglit test results unstable...

There is no difference with this.

FWIW I found another regression with this kernel that is caused by the same
commit.

Maybe regression is the wrong word, as there was already an issue, just it's
worse now.

I will file a separate bug in time (was planning to do new xorg and retest
first) but in summary -

Unigine Valley always did have some 1/2 to 1 sec pauses ever since I could run
it, first on HD4890 and now radeonsi R9 270X.

Since this kernel commit they are 2 to 4 times longer - also unchanged by
patch.

Strangely, if I use ffmpegs x11 grab to make a recording @ 30fps they become
short again.

You are receiving this mail because:
  • You are the assignee for the bug.
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