From owner-freebsd-arch Thu Jul 19 9: 8:15 2001 Delivered-To: freebsd-arch@freebsd.org Received: from mail.disney.com (mail.disney.com [204.128.192.15]) by hub.freebsd.org (Postfix) with ESMTP id C5EB737B401 for ; Thu, 19 Jul 2001 09:08:12 -0700 (PDT) (envelope-from Jim.Pirzyk@disney.com) Received: from pain10.corp.disney.com (root@pain10.corp.disney.com [153.7.110.100]) by mail.disney.com (Switch-2.0.1/Switch-2.0.1) with SMTP id f6JG7QI02604 for ; Thu, 19 Jul 2001 09:07:26 -0700 (PDT) Received: from [172.30.50.1] by pain.corp.disney.com with ESMTP for arch@FreeBSD.ORG; Thu, 19 Jul 2001 09:09:05 -0700 Received: from plio.fan.fa.disney.com (plio.fan.fa.disney.com [153.7.118.2]) by pecos.fa.disney.com (8.11.3/8.11.3) with ESMTP id f6JG89s00480 for ; Thu, 19 Jul 2001 09:08:09 -0700 (PDT) Received: from mercury.fan.fa.disney.com (mercury.fan.fa.disney.com [153.7.119.1]) by plio.fan.fa.disney.com (8.9.2/8.9.2) with ESMTP id JAA29900 for ; Thu, 19 Jul 2001 09:08:09 -0700 (PDT) (envelope-from Jim.Pirzyk@disney.com) Received: from snoopy.fan.fa.disney.com by mercury.fan.fa.disney.com; Thu, 19 Jul 2001 09:08:08 -0700 Content-Type: text/plain; charset="iso-8859-1" From: Jim Pirzyk Organization: Walt Disney Feature Animation To: Bakul Shah Subject: Re: Setting the default MAX Stack size Date: Thu, 19 Jul 2001 09:08:08 -0700 X-Mailer: KMail [version 1.2] Cc: arch@FreeBSD.ORG References: <200107191602.MAA23206@illustrious.cnchost.com> In-Reply-To: <200107191602.MAA23206@illustrious.cnchost.com> MIME-Version: 1.0 Message-Id: <01071909080805.07804@snoopy> Content-Transfer-Encoding: 8bit Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thursday 19 July 2001 09:02 am, Bakul Shah wrote: > > > > So I have a need to increase the max stack size in the kernel. There > > > > currently is no knob to do this. I though of implementing it like > > > > the max data size knob (MAXDSIZ). Is this the best answer or should > > > > it maybe be done via read only sysctl (and then can be set in the > > > > /boot/loader.conf)? I know how to do the former, but I am not sure > > > > about the latter. > > > > > > > > Suggestions? > > > > > > Change your code to not use so much auto variable space; if > > > you are using this much space, you need to rethink your > > > algorithm. > > > > The program that is being used is by one of our developers and it > > is using recursion internally to do smog particle simulation over > > many frames (visual effects). Or systems are installed with > > 2GB of memory and they set there stack size to 128MB (from 64MB). > > > > The program could write its data out to disk, but then the > > performance gets killed. > > > > We also had to knock up the stack size on the linux systems that > > these programs are actually developed on. > > How about something like > > options MAXSSIZ="(256UL*1024*1024)" > > in your config file? This is the commit that I was going to do if no one else had a better idea. You do need to add MAXSSIZ to the /sys/conf/options file for config(8) to accept it, and then document it in the LINT configuration. - JimP -- --- @(#) $Id: dot.signature,v 1.10 2001/05/17 23:38:49 Jim.Pirzyk Exp $ __o Jim.Pirzyk@disney.com ------------- pirzyk@freebsd.org _'\<,_ Senior Systems Engineer, Walt Disney Feature Animation (*)/ (*) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message