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, 02 Sep 2014 11:55:15 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1379805453==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 078546E45F for ; Tue, 2 Sep 2014 04:55:15 -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 --===============1379805453== Content-Type: multipart/alternative; boundary="1409658914.B7C2fBa0.10590"; charset="us-ascii" --1409658914.B7C2fBa0.10590 Date: Tue, 2 Sep 2014 11:55:14 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=82050 --- Comment #50 from Andy Furniss --- (In reply to comment #49) > (In reply to comment #48) > > (In reply to comment #46) > > What does num-bytes-moved measure - from where to where? > > The HUD always displays an average value per frame. It's the average of all > values between the current and the last update of the HUD. Ahh, so the fact that HUD stops rendering during the pauses means that spikes are likely anyway. Though my question wasn't really about the HUD as such, I was wondering where they were moving to/from - I guess the answer may be too obvious, but just to confirm. I assume it's across PCIE to the card (or maybe from/both) - is it DMA or CPU transfer? Is it dependent on app behavior or driver - eg. running Unigine Reflections I saw a blip in the graph first run, but not again. -- You are receiving this mail because: You are the assignee for the bug. --1409658914.B7C2fBa0.10590 Date: Tue, 2 Sep 2014 11:55:14 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 50 on bug 82050 from 
(In reply to comment #49)
> (In reply to comment #48)
> > (In reply to comment #46)

> > What does num-bytes-moved measure - from where to where?
> 
> The HUD always displays an average value per frame. It's the average of all
> values between the current and the last update of the HUD.

Ahh, so the fact that HUD stops rendering during the pauses means that spikes
are likely anyway.

Though my question wasn't really about the HUD as such, I was wondering where
they were moving to/from - I guess the answer may be too obvious, but just to
confirm.

I assume it's across PCIE to the card (or maybe from/both) - is it DMA or CPU
transfer? Is it dependent on app behavior or driver - eg. running Unigine
Reflections I saw a blip in the graph first run, but not again.

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