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From: "Steven G. Kargl" <kargl@troutmask.apl.washington.edu>
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To: Charles Swiger <cswiger@mac.com>
Date: Fri, 12 Sep 2003 15:22:53 -0700 (PDT)
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cc: freebsd-questions@freebsd.org
Subject: Re: max physical memory per process?
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Charles Swiger wrote:
> On Friday, September 12, 2003, at 04:19 PM, Steven G. Kargl wrote:
> > Assuming that a user has the proper resource limits
> > set and assuming that the system has sufficient physical
> > memory, what is the maximum amount of physical memory
> > that a process can allocate?  In particular, if I have
> > a Tyan K8W (dual opteron platform) with 16 GB of memory,
> > can my numerical simulation allocate up 15+ GB?
> 
> If FreeBSD takes advantage of the Opteron as a 64-bit (LP) platform, 
> yes.  Otherwise, you're probably limited to around 3 GB.
> 

I guess the gist of the question is: "are 64-bit
FreeBSD platforms limited to 4GB per process due
to some underlying assumption in the ia32 vm code?"

-- 
Steve
http://troutmask.apl.washington.edu/~kargl/