From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 20 May 2001 13:35:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 20 May 2001 13:35:13 -0400 Received: from inje.iskon.hr ([213.191.128.16]:30143 "EHLO inje.iskon.hr") by vger.kernel.org with ESMTP id ; Sun, 20 May 2001 13:35:09 -0400 To: Mike Galbraith Cc: "Stephen C. Tweedie" , Rik van Riel , Ingo Oeser , , Subject: Re: [RFC][PATCH] Re: Linux 2.4.4-ac10 In-Reply-To: Reply-To: zlatko.calusic@iskon.hr X-Face: s71Vs\G4I3mB$X2=P4h[aszUL\%"`1!YRYl[JGlC57kU-`kxADX}T/Bq)Q9.$fGh7lFNb.s i&L3xVb:q_Pr}>Eo(@kU,c:3:64cR]m@27>1tGl1):#(bs*Ip0c}N{:JGcgOXd9H'Nwm:}jLr\FZtZ pri/C@\,4lW<|jrq^<):Nk%Hp@G&F"r+n1@BoH From: Zlatko Calusic Date: 20 May 2001 15:44:12 +0200 In-Reply-To: Message-ID: <8766ew16fn.fsf@atlas.iskon.hr> User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.2 (Urania) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Mike Galbraith writes: > Hi, > > On Fri, 18 May 2001, Stephen C. Tweedie wrote: > > > That's the main problem with static parameters. The problem you are > > trying to solve is fundamentally dynamic in most cases (which is also > > why magic numbers tend to suck in the VM.) > > Magic numbers might be sucking some performance right now ;-) > [snip] I like your patch, it improves performance somewhat and makes things more smooth and also code is simpler. Anyway, 2.4.5-pre3 is quite debalanced and it has even broken some things that were working properly before. For instance, swapoff now deadlocks the machine (even with your patch applied). Unfortunately, I have failed to pinpoint the exact problem, but I'm confident that kernel goes in some kind of loop (99% system time, just before deadlock). Anybody has some guidelines how to debug kernel if you're running X? Also in all recent kernels, if the machine is swapping, swap cache grows without limits and is hard to recycle, but then again that is a known problem. -- Zlatko