[nycbug-talk] Memory sizing
Isaac Levy
ike at lesmuug.org
Sat Apr 22 11:44:13 EDT 2006
Hi Francisco,
First question: what OS do you plan to run? The key term here is
'PAE', for i386 systems, "The Physical Address Extension (PAE)
capability of the Intel® Pentium Pro and later CPUs allows memory
configurations of up to 64 gigabytes" (FreeBSD handbook).
***(Note- Upcoming meeting has Mickey speaking about PAE on OpenBSD)***
On Apr 21, 2006, at 11:47 PM, Francisco Reyes wrote:
> Soon to buy a couple of new server and wondering if we should get
> 4GB or
> 8GB. My first stop is trying to better understand memory utilization.
From my experience with PAE on FreeBSD, it's currently an additional
kernel compile, like SMP,
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/
kernelconfig-config.html
Section 8.4.1
It's not rocket science, and *seems* to be stable, but the machine
I've used it on is NOT a heavy-lifter- (it simply runs Samba with
TONS of files).
Noteworthy- one process can only use up to 4GB of physical memory
here. I'm not sure if this is a limitation of the processor, or the
FreeBSD implementation.
>
> Any suggested links?
> I have several machines simmilar machines to the functionality of
> one of the
> new servers (mail machine), the second new server will be a PostgreSQL
> database.. to host millions of records with about 250GB worth of data.
For FreeBSD, the handbook link above helps. For Other BSD os's, I
hope others post urls... I'm curious too...
Rocket-
.ike
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