From owner-freebsd-current@FreeBSD.ORG  Tue Apr 15 08:06:39 2008
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To: Jeff Roberson <jroberson@jroberson.net>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Mon, 14 Apr 2008 21:38:34 -1000."
	<20080414213656.Q959@desktop> 
Date: Tue, 15 Apr 2008 08:06:34 +0000
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Cc: Andrew Reilly <andrew-freebsd@areilly.bpc-users.org>,
	Roman Divacky <rdivacky@FreeBSD.org>, Robert Watson <rwatson@FreeBSD.org>,
	Julian Elischer <julian@elischer.org>,
	FreeBSD Current <current@FreeBSD.org>
Subject: Re: stack hogs in kernel 
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In message <20080414213656.Q959@desktop>, Jeff Roberson writes:

>> I've long wondered about the seemingly fanatical stack size concern in
>> kernel space.  In other domains (where I have more experience) you can
>> get good performance benefits from the essentially free memory management
>> and good cache re-use that comes from putting as much into the
>> stack/call-frame as possible.
>
>There is a small fixed kernel stack per-thread.

And in case anybody is about to forget: FreeBSD is still used on
systems with a lot less than 1GB ram :-)

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.