Memory Concepts [+Newbie]

[Marcos Roriz <marcosrorizinf@gmail.com>]

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

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>