Re: Reduce Linux memory requirements for an Embedded PC

[Rik van Riel <riel@conectiva.com.br>]

On Sat, 24 Mar 2001, Andi Kleen wrote:
> On Sat, Mar 24, 2001 at 10:59:36AM +0100, Petr Dusil wrote:

> > I am developing a Linux distribution for a Jumptec Embedded PC. It is
> > targeted to an I486, 16MB DRAM, 16MB DiskOnChip. I have decided to use
> > Redhat 6.2  (2.2.14 kernel) and to reduce its size to fit the EPC. I
> > have simplified the kernel (removed support of all unwanted hardware),

> One way is to go back to a 2.0 kernel, which uses somewhat less
> memory. I did that on a 4MB box. There are also ways to reduce memory
> usage further for both 2.0 and 2.2, but it requires a bit of source
> patching. Basically you go through nm --size-sort -t d vmlinux and try
> to reduce all big symbols, like the static super block array and
> reducing sizes of preallocated hash tables (e.g. buffer and networking
> hash is very big in 2.2)

I'm willing to work on a CONFIG_TINY option for 2.5 which
does things like this (but I'll have to finish some VM
things first ;)).

regards,

Rik
--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

		http://www.surriel.com/
http://www.conectiva.com/	http://distro.conectiva.com.br/

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