Date: Thu, 19 Jul 2001 09:02:12 -0700 From: Bakul Shah <bakul@bitblocks.com> To: Jim Pirzyk <Jim.Pirzyk@disney.com> Cc: arch@FreeBSD.ORG Subject: Re: Setting the default MAX Stack size Message-ID: <200107191602.MAA23206@illustrious.cnchost.com> In-Reply-To: Your message of "Thu, 19 Jul 2001 08:36:36 PDT." <01071908363603.07804@snoopy>
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> > > 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?
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