From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751999Ab2HaJe0 (ORCPT ); Fri, 31 Aug 2012 05:34:26 -0400 Received: from smtp.getmail.no ([84.208.15.66]:50151 "EHLO smtp.getmail.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751429Ab2HaJeY (ORCPT ); Fri, 31 Aug 2012 05:34:24 -0400 MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; charset=iso-8859-15; format=flowed; delsp=yes To: linux-kernel@vger.kernel.org Subject: Re: Latency. References: <503D4B37.1030202@earthlink.net> Date: Fri, 31 Aug 2012 11:34:26 +0200 From: Uwaysi Bin Kareem Message-id: In-reply-to: User-Agent: Opera Mail/12.01 (Win32) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is a whole thread on phoronix, regarding this, where many people have similar sentiments. Good to see others who understand the same. :) http://phoronix.com/forums/showthread.php?71741-A-Low-Latency-Kernel-For-Linux-Gaming Some people don`t seem to be noticing it. They are fewer in the thread though, but quite common. Please also read my response to this: http://phoronix.com/forums/showthread.php?71741-A-Low-Latency-Kernel-For-Linux-Gaming&p=284229#post284229 Peace Be With You. On Fri, 31 Aug 2012 00:50:28 +0200, Uwaysi Bin Kareem wrote: > I have done some research on latency. I have config`d a linux kernel to > run 0.3ms reliable latency with audiostreams, under normal > worksituations. (An audioapp, and maybe some small tasks in between). > > This also resulted in an extremely smooth gameplaying experience, like > an asm-programmed custom hardware arcade. (Why gamebox-developers isn`t > using this, is a mystery). > > Recently I also tried to come as close to that experience on windows, > and found that win32priorityseparation on 25, all processes on idle, to > avoid cpu2 stalling cpu1, and minimal drivers, services, and processes > gave a similar experience. Windows btw, also gives lower latency, if one > moves windows, which one can use/abuse in a script/hack. > > The feeling from low latency systems brings back the exhilaration of > custom hardware and assembly programming. It gives a different feel, and > I do believe it sets a high quality expectation to software and I wonder > if that is why the Amiga is said to have so much good software, and > responsible for it`s reputation. > > My windows-partition now runs as good as an Amiga, and I managed to make > it run even better, reminding me of singletasking systems like Mac OS. > > Games are just so much more fun with this. And the overall os is so much > more responsive. > > More optimized stuff like Wayland will ofcourse even improve things more. > > I do think that for "desktop" the focus should really be on low-latency > systems. > If "desktop" and "server" are the two different profiles you usually > config for in linux, how about two different standard configs? Or are > these merging aswell, since I would think multi-cpu servers appreciate > low os-jitter aswell? > > Just some thoughts. > > Peace Be With You.