From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 3 Nov 2000 12:53:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 3 Nov 2000 12:53:36 -0500 Received: from fw.SuSE.com ([202.58.118.35]:39664 "EHLO linux.local") by vger.kernel.org with ESMTP id ; Fri, 3 Nov 2000 12:53:32 -0500 Date: Fri, 3 Nov 2000 11:04:04 -0800 From: Jens Axboe To: Miles Lane Cc: Rui Sousa , Rik van Riel , linux-kernel@vger.kernel.org, Matthew Dharm Subject: Re: Blocked processes <=> Elevator starvation? Message-ID: <20001103110404.I521@suse.de> In-Reply-To: <20001027134603.A513@suse.de> <20001027202710.A825@suse.de> <39FC78BF.90607@speakeasy.org> <20001029144543.D615@suse.de> <39FE16A3.5070608@speakeasy.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <39FE16A3.5070608@speakeasy.org>; from miles@speakeasy.org on Mon, Oct 30, 2000 at 04:47:31PM -0800 X-OS: Linux 2.4.0-test10 i686 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 30 2000, Miles Lane wrote: > I just reproduced the problem in test10-pre7. Here's the > output you requested: Thanks > vmstat 1 > procs memory swap io system cpu > r b w swpd free buff cache si so bi bo in cs us sy id > 1 1 2 0 43736 77680 59548 0 0 0 1279 908 2637 1 8 91 > 0 2 3 0 43072 78040 59592 0 0 0 1660 1281 4119 5 6 89 > > >>> /var/log/kernel output stopped being emitted here <<< > >>> CRUNCH! <<< > > 0 2 3 0 42656 78384 59592 0 0 0 259 271 551 0 0 100 > 0 2 3 0 42656 78384 59592 0 0 0 5 271 499 0 0 100 Yes, I would assume this would be the case. The current vm does not behave very well once the cache has been filled up. I'm not knocking the new vm, this has been a problem for some time. Basically I/O performance goes badly down the drain at this point. -- * Jens Axboe * SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/