Date: Fri, 04 Sep 1998 11:32:18 -0400 From: Richard Cownie <tich@ma.ikos.com> To: freebsd-questions@FreeBSD.ORG Subject: Support for big memory and SMP Message-ID: <35F00802.E5517972@ma.ikos.com>
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Hi,
I have a cpu/memory intensive application which requires
>2GB of physical DRAM, and >2GB of virtual address space in
a single user process. Machines with 4GB DRAM are now
available at reasonable cost (e.g. Dell PowerEdge 6300 ~= $25K).
So I have several questions:
a) Is there any theoretical reason (e.g. hard split of virtual
address space) why FreeBSD couldn't handle 4GB of physical
DRAM; or >2GB in a single user process ?
b) Has anyone tried this in practice ?
c) Is anyone running FreeBSD on Pentium Xeon machines ?
In particular, 4-way SMP Xeon machines.
d) I've heard a rumour that Linux has a hard 2GB limit -
does anyone have details of this ?
e) The third alternative is Solaris on x86 - if anyone knows
about big-memory issues with this environment I'd be
very interested.
Thanks
Richard Cownie
email: tich@ma.ikos.com
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