Date: Fri, 12 Sep 2003 15:22:53 -0700 (PDT) From: "Steven G. Kargl" <kargl@troutmask.apl.washington.edu> To: Charles Swiger <cswiger@mac.com> Cc: freebsd-questions@freebsd.org Subject: Re: max physical memory per process? Message-ID: <200309122222.h8CMMrrM006402@troutmask.apl.washington.edu> In-Reply-To: <2DBB9BDD-E561-11D7-A63B-003065ABFD92@mac.com>
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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/
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