From: Marcos Roriz <marcosrorizinf@gmail.com>
To: kernelnewbies@nl.linux.org, linux-mm@kvack.org
Subject: Memory Concepts [+Newbie]
Date: Mon, 04 May 2009 08:44:36 -0300 [thread overview]
Message-ID: <49FED524.9020602@gmail.com> (raw)
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>
next reply other threads:[~2009-05-04 11:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-04 11:44 Marcos Roriz [this message]
2009-05-04 12:28 ` Memory Concepts [+Newbie] Mark Brown
2009-05-05 6:07 ` Pei Lin
2009-05-05 8:05 ` Mulyadi Santosa
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=49FED524.9020602@gmail.com \
--to=marcosrorizinf@gmail.com \
--cc=kernelnewbies@nl.linux.org \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).