From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from ams-iport-1.cisco.com ([144.254.224.140]:7234 "EHLO ams-iport-1.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753611Ab3GaF5J convert rfc822-to-8bit (ORCPT ); Wed, 31 Jul 2013 01:57:09 -0400 From: =?ISO-8859-1?Q?B=E5rd?= Eirik Winther To: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org Subject: Re: [PATCHv2 FINAL 0/6] qv4l2: add OpenGL rendering and window fixes Date: Wed, 31 Jul 2013 07:57:05 +0200 Message-ID: <20227492.r4Kl03Wv4H@bwinther> In-Reply-To: <20130730101233.2c78cbae@samsung.com> References: <1375172124-14439-1-git-send-email-bwinther@cisco.com> <20130730101233.2c78cbae@samsung.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="iso-8859-1" Sender: linux-media-owner@vger.kernel.org List-ID: On Tuesday, July 30, 2013 10:12:33 AM you wrote: > Em Tue, 30 Jul 2013 10:15:18 +0200 > Bård Eirik Winther escreveu: > > ... > > > Performance: > > All tests are done on an Intel i7-2600S (with Turbo Boost disabled) using the > > integrated Intel HD 2000 graphics processor. The mothreboard is an ASUS P8H77-I > > with 2x2GB CL 9-9-9-24 DDR3 RAM. The capture card is a Cisco test card with 4 HDMI > > inputs connected using PCIe2.0x8. All video input streams used for testing are > > progressive HD (1920x1080) with 60fps. > > I did a quick test here with a radeon HD 7750 GPU on a i7-3770 CPU, using an UVC > camera at VGA resolution and nouveau driver (Kernel 3.10.3). > > qv4l2 CPU usage dropped from 13% to 3,75%. > > It sounds a nice improvement! > > That is good to hear. My results where achived using the 3.9 and 3.10 kernels although I belive that the hardware and opengl driver affects performance the most. With such a good hardware and relatively low resolution, you wont see that much of a differance :-), but it is a nice improvement indeed. Anyway, nice to get additional tests!