Date: Sat, 15 Mar 2003 14:13:07 +0000 From: Tony Finch <dot@dotat.at> To: Juli Mallett <jmallett@FreeBSD.org>, Eivind Eklund <eivind@FreeBSD.org>, Mike Silbersack <silby@silby.com>, arch@FreeBSD.org Subject: Re: cvs commit: src/sys/vm vm_map.c vm_map.h vm_pageout.c Message-ID: <20030315141307.C10065@chiark.greenend.org.uk> In-Reply-To: <20030315075427.GA25332@HAL9000.homeunix.com>; from das@FreeBSD.org on Fri, Mar 14, 2003 at 11:54:27PM -0800 References: <200303122313.h2CNDHMU046431@repoman.freebsd.org> <20030312175458.J32334@odysseus.silby.com> <20030313005115.GA11794@HAL9000.homeunix.com> <20030313154226.X682@odysseus.silby.com> <20030314012954.A42430@FreeBSD.org> <20030314101857.A98861@FreeBSD.org> <20030315075427.GA25332@HAL9000.homeunix.com>
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On Fri, Mar 14, 2003 at 11:54:27PM -0800, David Schultz wrote: > > I think the fundamental principle here is that when the kernel is > dangerously low on virtual memory, it needs to be able to choose a > process to kill and be guaranteed that the process will die right > away and without generating many page faults. It would also be > great if the administrator could mark a few processes as > off-limits in a way that the pagedaemon can understand. Remember > that this is a rather rare situation; the system doesn't have to > do something incredibly intelligent, it just has to do something > reasonable. A couple of suggestions: don't kill processes with lots of children also counting their children's children (e.g. X) or that don't have a controlling terminal (daemons). Tony. -- f.a.n.finch <dot@dotat.at> http://dotat.at/ ROCKALL MALIN: SOUTHEASTERLY 4 OR 5, OCCASIONALLY 6 AT FIRST. MAINLY FAIR. MODERATE OR GOOD. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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