From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sun, 20 May 2001 19:58:39 +0200 (CEST) From: Mike Galbraith Subject: Re: [RFC][PATCH] Re: Linux 2.4.4-ac10 In-Reply-To: <8766ew16fn.fsf@atlas.iskon.hr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Zlatko Calusic Cc: "Stephen C. Tweedie" , Rik van Riel , Ingo Oeser , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On 20 May 2001, Zlatko Calusic wrote: > 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. Thanks for the feedback. Positive is nice.. as is negative. > 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). I haven't run into that. > 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? Serial console and kdb or kgdb if you have two machines.. or uml? > 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. This one bugs me. I do not see that and can't understand why. -Mike -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/