install guide draft

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I had a look at some parts of

http://rlandmann.fedorapeople.org/Installation Guide/en-US/html

"7.22.4. SMP Motherboards and GRUB
In previous versions of Fedora there were two different kernel
versions, a uniprocessor version and an SMP version. In Fedora 11 the
kernel is SMP-enabled by default and will take advantage of multiple
core, hyperthreading, and multiple CPU capabilities when they are
present. This same kernel can run on single CPUs with a single core
and no hyperthreading. "


This is being repeated since FC-4-6?

"Swap should equal 2x physical RAM for up to 2 GB of physical RAM, and
then an additional 1x physical RAM for any amount above 2 GB, but
never less than 32 MB.
So, if:
M = Amount of RAM in GB, and S = Amount of swap in GB, then

If M < 2
	S = M *2
Else
	S = M + 2"

Using this formula, a system with 2 GB of physical RAM would have 4 GB
of swap, while one with 3 GB of physical RAM would have 5 GB of swap.
Creating a large swap space partition can be especially helpful if you
plan to upgrade your RAM at a later time.
For systems with really large amounts of RAM (more than 32 GB) you can
likely get away with a smaller swap partition (around 1x, or less, of
physical RAM)."


The formula is not correct. Or is this the result of some special study?

I think, S= min{3, 2*M} is best for most desktop users
For most servers it should be around Max(5, M/5).

Sys admins should determine the actual requirement for servers and
scientific computing.

There are some recommendations here: http://www.linux.com/feature/121916


Best

A. Mani


-- 
A. Mani
Member, Cal. Math. Soc

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