Skip site navigation (1)Skip section navigation (2)
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>

Next in thread | Previous in thread | Raw E-Mail | Index | Archive | Help
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



Want to link to this message? Use this URL: <http://docs.FreeBSD.org/cgi/mid.cgi?46885761.9050302>