From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263149AbUEWQUL (ORCPT ); Sun, 23 May 2004 12:20:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263154AbUEWQUK (ORCPT ); Sun, 23 May 2004 12:20:10 -0400 Received: from 213-0-214-141.dialup.nuria.telefonica-data.net ([213.0.214.141]:13702 "EHLO dardhal.mired.net") by vger.kernel.org with ESMTP id S263149AbUEWQT7 (ORCPT ); Sun, 23 May 2004 12:19:59 -0400 Date: Sun, 23 May 2004 18:20:08 +0200 From: Jose Luis Domingo Lopez To: Billy Biggs Cc: Kernel Mailing List Subject: Re: tvtime and the Linux 2.6 scheduler Message-ID: <20040523162008.GA14482@localhost> Mail-Followup-To: Billy Biggs , Kernel Mailing List References: <20040523154859.GC22399@dumbterm.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040523154859.GC22399@dumbterm.net> User-Agent: Mutt/1.5.5.1+cvs20040105i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sunday, 23 May 2004, at 10:48:59 -0500, Billy Biggs wrote: > "[...] it starts up fine, but after a few seconds (when the scheduler > gathered some stats) ... well, it looks funny: the scene goes roughly > exponentially into slow motion, then there is a frame drop and the > process starts over. this behaviour can be observed at any priority, > which is clearly against the claim "no normally priorized interactive > process will preempt a highly priorized cpu-hog" that i've read > somewhere. the xserver priority does not change anything, either;" > I am currently using tvtime 0.9.12-2 from Debian SID on a Linux kernel version 2.6.6 compiled with Sid's gcc 3.3.3 and haven't seen such problems so far. I use tvtime often to watch TV on my monitor, and it works OK, no artifacts and no slowdown (even when I download my email and spamassassin starts to eat CPU cicles like mad). With my current configuration tvtime at full screen (1024x768) takes about 40% CPU from a AMD XP 1477 MHz (1700 rating). I have just tried launching three copies of "yes" on several aterm's and tvtime still looks as smooth as before, althoug CPU is always at 100% Please ask for more information should you need it. -- Jose Luis Domingo Lopez Linux Registered User #189436 Debian Linux Sid (Linux 2.6.6)