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Date: Thu, 21 Aug 2008 03:22:46 +0200
From: Kris Kennaway <kris@FreeBSD.org>
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To: Christian Weisgerber <naddy@mips.inka.de>
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Cc: freebsd-current@freebsd.org
Subject: Re: Superpages?
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Christian Weisgerber wrote:
> Alan Cox <alan.l.cox@gmail.com> wrote:
> 
>> Superpages are not enabled by default but support for them is a standard
>> part of the amd64 and i386 kernel on HEAD.  You can enable superpages on
>> either of those architectures by simply setting  the tunable
>> vm.pmap.pg_ps_enabled to a non-zero value at boot time.
> 
> To clarify: This needs to be set in loader.conf.  sysctl.conf is
> evaluated too late.
> 

Yeah, "tunable" means that in the FreeBSD context.  For modules you can 
also set it in kenv before the module loads.

Kris