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Date: Mon, 04 May 2009 08:44:36 -0300
From: Marcos Roriz <marcosrorizinf@gmail.com>
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Subject: Memory Concepts [+Newbie]
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I'm reading Mel Gorman Understating the Linux Virtual Memory Manager and 
also TANENBAUM Modern Operating System I don't get some basic concepts 
of the Memory Management in Linux Kernel.

The first question is, what is a memory bank, It's not clear if its a 
physical section of the memory of if its a chip (physical) itself.

The ZONE_NORMAL zone refer only to kernel direct memory mapped, that 
means only to kernel pages and kernel programs (such as daemons)?

Why is the ZONE_NORMAL so large (896 MB)? How to deal with low memory 
systems?

The ZONE_HIGHMEM zone refer to kernel not mapped directly, so that 
includes userspace programs right?

I googled and searched for all those answers but couldn't find a direct 
and consistent answer, thats why I'm asking for your guys help.

Thanks very much for you time,

Marcos Roriz

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