Gentoo Archives: gentoo-user

From: Thanasis <thanasis@××××××××××.org>
To: Krzysztof Halasa <khc@××××××.pl>
Cc: gentoo-user@l.g.o, Dirk Heinrichs <dirk.heinrichs@××××××.de>, LKML <linux-kernel@×××××××××××.org>
Subject: Re: [gentoo-user] RAM installed vs reported
Date: Sun, 03 Jan 2010 10:10:34
Message-Id: 4B406CDF.7010301@asyr.hopto.org
1 on 01/01/2010 03:38 PM Krzysztof Halasa wrote the following:
2 > Thanasis <thanasis@××××××××××.org> writes:
3 >
4 >
5 >>> Depends on the "split" used. With 2 GB : 2 GB you can have all-lowmem
6 >>> 1.5 GB RAM, without CONFIG_HIGHMEM*. 2 GB of per-process address space
7 >>> is usually not a problem.
8 >>>
9 >> How do you implement that? What do you mean 2GB:2GB split ?
10 >>
11 > See "make menuconfig", Processor type and features -> Memory split. You
12 > need to select "EMBEDDED" and "EXPERIMENTAL" first. What you need for
13 > 1.5 GB RAM is VMSPLIT_2G.
14 >
15 > The idea is that the CPU address space is divided: ca. 2 GB (in this
16 > configuration) for user space (for each process - instead of 3 GB),
17 > 2 GB - 128 MB (or something like that, I don't remember exactly) for
18 > physical RAM, and the last 128 MB or so for PCI devices and other
19 > things.
20 >
21 Hmm..., but are EMBEDDED options suitable for a netbook like the A110L ?