From owner-freebsd-current Thu Jun 4 23:43:46 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA18612 for freebsd-current-outgoing; Thu, 4 Jun 1998 23:43:46 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from dyson.iquest.net (dyson.iquest.net [198.70.144.127]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id XAA18582; Thu, 4 Jun 1998 23:43:18 -0700 (PDT) (envelope-from toor@dyson.iquest.net) Received: (from root@localhost) by dyson.iquest.net (8.8.8/8.8.8) id BAA00586; Fri, 5 Jun 1998 01:43:04 -0500 (EST) (envelope-from toor) Message-Id: <199806050643.BAA00586@dyson.iquest.net> Subject: Re: Odd VM behaviour In-Reply-To: <199806050620.OAA28939@spinner.netplex.com.au> from Peter Wemm at "Jun 5, 98 02:20:29 pm" To: peter@netplex.com.au (Peter Wemm) Date: Fri, 5 Jun 1998 01:43:04 -0500 (EST) Cc: dyson@FreeBSD.ORG, eivind@yes.no, current@FreeBSD.ORG From: "John S. Dyson" Reply-To: dyson@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Peter Wemm said: > "John S. Dyson" wrote: > > Eivind Eklund said: > > > > > > When I kill -9 a frozen netscape (which has a lot of paged out pages), > > > my machine freeze in mad swapping for several seconds. Is this > > > anticipated behavour? > > > > > I have seen that on Netscape 3.0. It seems that recent -current is > > better than older versions of -current and 2.2. > > I've seen it too. What I find odd is that there is so much intense paging > supposedly just to free the address space. I'm curious why it pages in > anything (much) just to free it all up. :-) A kill -9 doesn't cause any > execution, so it shouldn't be the result of signal handlers firing up and > paging data in etc. > > Of course, if the paging is a result of trying to free up space for > temporary VM tables etc, then maybe that's different - but it still seems > awfully big. > There are some severe bugs in that area. While working on the improved SMP VM stuff, I have found some more window conditions. Maybe the fixes will help. -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message