Date: Sun, 01 Jul 2007 21:39:45 -0400 From: Chuck Swiger <cswiger@mac.com> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: freebsd-questions@freebsd.org Subject: Re: large pages Message-ID: <46885761.9050302@mac.com> In-Reply-To: <20070701203720.X64116@wojtek.tensor.gdynia.pl> References: <20070701203720.X64116@wojtek.tensor.gdynia.pl>
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Wojciech Puchar wrote:
> does FreeBSD {can,will,patch exist} supports using huge pages? i mean 2M
> pages on AMD64 and 2/4M pages on i386
I believe so, yes-- isn't this what the PAE kernel option does?
> i need freebsd just for running one program needing about 1280 megs of
> data space (+1-2 meg of code stacks etc. can be normally mapped).
> everything else is just using less than 1% of power.
>
> with 1536MB AMD64 machine it would be nice for FreeBSD to boot seeing
> 256 megs for itself and allowing 1280 megs to be mapped&locked to just
> one program.
Hmm. Doesn't FreeBSD's default VM behavior do just fine dealing with one
large active process without any unusual tuning?
--
-Chuck
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