From owner-freebsd-x11@FreeBSD.ORG Fri Jun 23 17:28:17 2006 Return-Path: X-Original-To: x11@freebsd.org Delivered-To: freebsd-x11@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 62ABC16A47C for ; Fri, 23 Jun 2006 17:28:17 +0000 (UTC) (envelope-from bsam@ipt.ru) Received: from mail.ipt.ru (mail.ipt.ru [80.253.10.82]) by mx1.FreeBSD.org (Postfix) with ESMTP id E45F643D45 for ; Fri, 23 Jun 2006 17:28:16 +0000 (GMT) (envelope-from bsam@ipt.ru) Received: from admin.sem.ipt.ru ([192.168.12.1] helo=srv.sem.ipt.ru) by mail.ipt.ru with esmtp (Exim 4.62 (FreeBSD)) (envelope-from ) id 1FtpS1-000CLH-56; Fri, 23 Jun 2006 21:28:13 +0400 Received: from bsam by srv.sem.ipt.ru with local (Exim 4.62 (FreeBSD)) (envelope-from ) id 1FtpT7-000CP2-07; Fri, 23 Jun 2006 21:29:21 +0400 To: Mikhail Teterin References: <200606231317.21964@aldan> From: Boris Samorodov Date: Fri, 23 Jun 2006 21:29:20 +0400 In-Reply-To: <200606231317.21964@aldan> (Mikhail Teterin's message of "Fri, 23 Jun 2006 13:17:21 -0400") Message-ID: <83238575@srv.sem.ipt.ru> User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: x11@freebsd.org Subject: Re: gears vs. glxgears; i915 for Linux binaries? X-BeenThere: freebsd-x11@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: X11 on FreeBSD -- maintaining and support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Jun 2006 17:28:17 -0000 On Fri, 23 Jun 2006 13:17:21 -0400 Mikhail Teterin wrote: > First of all, allow me to thank you for the working DRI on my laptop with i915 > chipset. Although none of my Radeon desktops work yet, this is very welcome > progress. > After installing the linux_dri port, I wanted to compare the simple (glx)gears > results between the Linux and the native binaries. > The /compat/linux/usr/X11R6/bin/gears appears to be the same beast, as the > ${X11BASE]/bin/glxgears installed by the native Xorg port. > Running the Linux gears seemed VERY fast -- they were spinning like crazy but > the program reports just 1800 frames per 5 seconds -- around 380 FPS (all for > the default small window). > Running the native glxgears appeared much slower, but the reported stats were > ~2.5 times higher -- around 950 FPS. > Now, the reported speed difference is, likely, due to the fact, that the > linux_dri does not (yet?) install the i915_dri.so, so no DRI is (yet?) > possible for Linux programs on my laptop. But why does it *appear* to be > faster? It's an optical effect. Haven't you ever see a wheel (a car or bicycle) which *seems* to spin the wrong direction? It's the same here. ;-) WBR -- Boris B. Samorodov, Research Engineer InPharmTech Co, http://www.ipt.ru Telephone & Internet Service Provider