From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270009AbTGPG5N (ORCPT ); Wed, 16 Jul 2003 02:57:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270158AbTGPG5N (ORCPT ); Wed, 16 Jul 2003 02:57:13 -0400 Received: from 153.Red-213-4-13.pooles.rima-tde.net ([213.4.13.153]:32517 "EHLO small.felipe-alfaro.com") by vger.kernel.org with ESMTP id S270009AbTGPG5M (ORCPT ); Wed, 16 Jul 2003 02:57:12 -0400 Subject: Re: [PATCH] N1int for interactivity From: Felipe Alfaro Solana To: Con Kolivas Cc: linux kernel mailing list , Mike Galbraith , Andrew Morton In-Reply-To: <200307160912.05833.kernel@kolivas.org> References: <200307151355.23586.kernel@kolivas.org> <1058282608.626.4.camel@teapot.felipe-alfaro.com> <200307160912.05833.kernel@kolivas.org> Content-Type: text/plain Message-Id: <1058339520.586.3.camel@teapot.felipe-alfaro.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.3 Date: 16 Jul 2003 09:12:00 +0200 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2003-07-16 at 01:12, Con Kolivas wrote: > > I can still starve XMMS on 2.5.75-mm1 + patch-O5int-0307150857 + > > patch-N1int-0307152010: > > > > 1. Log on to KDE > > 2. Launch Konqueror > > 3. Launch XMMS and make it play > > 4. Move Konqueror window all over the desktop > > > > Step 4 will make XMMS starve for a few seconds. Also, under heavy load > > (while true; do a=2; done), moving the Konqueror window like crazy makes > > X go jerky after a few seconds. If I quit moving windows around, after a > > few other seconds, X returns to normal/smooth behavior. > > I was more concerned to see if the N1 patch added anything to the current > behaviour, but that is abandoned work now so don't worry. I can address these > further issues incrementally if you're willing to test them. My test boxes > have been tamed but I need and appreciate greatly your testing. Just throw anything to me and I will test it gladly :-) > > I can fix the starvation/smoothness by setting: > > > > #define PRIO_BONUS_RATIO 45 > > #define INTERACTIVE_DELTA 4 > > #define MAX_SLEEP_AVG (HZ) > > #define STARVATION_LIMIT (HZ) > > > > For me, 2.6.0-test1 stock scheduler plus above changes makes the most > > user-friendly desktop I've ever seen. > > With a max sleep avg of just one second you'll never starve X or xmms for > sustained periods; but under load X will not be smooth getting jerky even > with small bursts of heavy X use; that's why Ingo increased the max sleep avg > in the first place... but that led to other issues... Well, under heavy load (while true ...) X still feels very smooth with 2.6.0-test1 and the above changes. In fact, I was inclined to make those changes as X didn't feel smooth under load on my system without them.