From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ismael Valladolid Torres Subject: Re: Measuring latency on my Apple G3 Date: Mon, 21 Jul 2003 13:46:41 +0200 Message-ID: <3F1BD2A1.7030404@sambara.org> References: <3F1BB92C.6090600@sambara.org> <1058785796.28382.139.camel@thor.holligenstrasse29.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <1058785796.28382.139.camel@thor.holligenstrasse29.lan> Resent-Message-ID: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Archive: To: =?ISO-8859-1?Q?Michel_D=E4nzer?= Cc: linux-audio-dev@music.columbia.edu, linux-audio-user@music.columbia.edu, alsa-devel@lists.sourceforge.net, alsa-user@lists.sourceforge.net, debian-powerpc@lists.debian.org List-Id: alsa-devel@alsa-project.org Michel Dänzer escribio el 21/07/03 13:09: > First of all, you mentioned in another post that you use x11perf to > create X11 stress. Are there also problems with real world apps? "Real world" apps work properly (except for the Gnome theme manager which displays garbage). I only find video performance using Linux a lot lower than using any of the Mac OS's. > Also keep in mind that neither the vanilla 2.4 kernel nor the X server > were designed for low latency. Have you tried the low latency and/or > O(1) scheduler kernel patches, and not running the X server with > negative nice values if you are? Both of those patches (A. Morton and R. Love's ones) were applied to my kernel. I don't know about running the X server with different nice values, which advantage would I get? (I am using gdm as my X session manager). > Last but possibly not least of all, the dmasound driver has been less > prone to dropouts in my experience than the ALSA driver. I should try with pure OSS. Let's not forget that the latency test suite is using the OSS compatibility layer of ALSA. Thanks a lot. Any feedback is still very useful. Regards, Ismael