From owner-freebsd-mobile@FreeBSD.ORG  Mon Mar 22 08:53:53 2004
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In-Reply-To: <20040322025621.A82392@xorpc.icir.org> from Luigi Rizzo at "Mar
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From: wpaul@FreeBSD.ORG (Bill Paul)
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Subject: Re: For those with Intel Centrino 2200BG wireless...
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> On Sun, Mar 21, 2004 at 06:52:06PM -0800, Bill Paul wrote:
> ...
> > accomodate it. The FreeBSD kernel stack is 2 pages (8192 bytes on
> > i386) whic is smaller than the Windows kernel size. This means the
> 
> how bad is it to use a larger default, e.g. the 8 pages you suggested ?
> 
> 	cheers
> 	luigi

Changing KSTACK_PAGES to 8 means each kernel thread in the system will
consume 32K of stack space instead of 8K. In other words, you'd consume
a little more memory for each thread. That's the only effect.

I think the Windows kernel stack is 16K, but I couldn't remember for
sure and I wasn't able to track down the reference where I discovered
the information the first time. Using KSTACK_PAGES=4 is probably more
reasonable.

-Bill

--
=============================================================================
-Bill Paul            (510) 749-2329 | Senior Engineer, Master of Unix-Fu
                 wpaul@windriver.com | Wind River Systems
=============================================================================
              <adamw> you're just BEGGING to face the moose
=============================================================================