compressed tmpfs

compressed tmpfs

[Tomasz Chmielewski]

Hello,

I was looking for something like tmpfs, but with additional feature - 
that all the files in that file system would be compressed.

I think it could be nice for one's RAM, especially in embedded 
devices/diskless stations, at a little expense of efficiency.

Is there such a feature in 2.4 kernel yet, and, if not, where should I 
look for it?

There is e2compr module on http://sourceforge.net/projects/e2compr/, but 
I'm not sure if it can be easily applied to 2.4.22 kernel (seems like 
it's for 2.4.17 kernels only).


Regards,

Tomasz Chmielewski

Re: compressed tmpfs

[Jörn Engel]

On Mon, 10 November 2003 13:49:16 +0100, Tomasz Chmielewski wrote:
> 
> I was looking for something like tmpfs, but with additional feature - 
> that all the files in that file system would be compressed.
> 
> I think it could be nice for one's RAM, especially in embedded 
> devices/diskless stations, at a little expense of efficiency.
> 
> Is there such a feature in 2.4 kernel yet, and, if not, where should I 
> look for it?
> 
> There is e2compr module on http://sourceforge.net/projects/e2compr/, but 
> I'm not sure if it can be easily applied to 2.4.22 kernel (seems like 
> it's for 2.4.17 kernels only).

Jffs2 on a ramdisk comes close to what you want.  For something
better, you have to code it up yourself.

Jörn

-- 
Time? What's that? Time is only worth what you do with it.
-- Theo de Raadt

Re: compressed tmpfs

[Paulo Marques]

Tomasz Chmielewski wrote:

> Hello,
> 
> I was looking for something like tmpfs, but with additional feature - 

> that all the files in that file system would be compressed.


I'm working on something like a "compressed read/write loopback device", that 
might do what you want.

I hope to have something to show by the end of this week, so if you wait a 
little maybe i'll be able to solve your problem :)

-- 
Paulo Marques
Software Development Department
www.grupopie.com