From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 103697] [regression] shared memory size 64k -> 32k? Date: Tue, 28 Nov 2017 16:41:38 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1513906846==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 350C16E10E for ; Tue, 28 Nov 2017 16:41:38 +0000 (UTC) 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 --===============1513906846== Content-Type: multipart/alternative; boundary="15118872980.3A5cf59C9.22333"; charset="UTF-8" --15118872980.3A5cf59C9.22333 Date: Tue, 28 Nov 2017 16:41:38 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D103697 --- Comment #4 from O Heid --- Many thanks for your consideration - That would be great! Our application is real time image processing and display. The main computi= ng effort is delay-and-sum beamforming. Source and destination data sets are much larger than LDS so we need to do block processing. This causes additional LDS <-> GPURAM traffic essentially inversely proportional to block (LDS) size. A 32k vs 64k limit (and thus tw= ice the RAM traffic) therefore causes quite a performance hit. Anyway: Mesa's OpenGL performance on AMD Radeons is quite amazing. Great jo= b! --=20 You are receiving this mail because: You are the assignee for the bug.= --15118872980.3A5cf59C9.22333 Date: Tue, 28 Nov 2017 16:41:38 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 4 on bug 10369= 7 from O Heid 
Many thanks for your consideration - That would be great!
Our application is real time image processing and display. The main computi=
ng
effort is delay-and-sum beamforming.
Source and destination data sets are much larger than LDS so we need to do
block processing. This causes additional LDS <-> GPURAM traffic essen=
tially
inversely proportional to block (LDS) size. A 32k vs 64k limit (and thus tw=
ice
the RAM traffic) therefore causes quite a performance hit.
Anyway: Mesa's OpenGL performance on AMD Radeons is quite amazing. Great jo=
b!

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