Kris Kennaway kris at
Thu Aug 21 01:22:49 UTC 2008

Christian Weisgerber wrote:
> Alan Cox <alan.l.cox at> 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.


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