Tor memory usage on embedded systems.

[slush]

As Roger wrote to list before few months, experimental version of Tor
optimizes RAM usage and I can confirm that. Before I switched to 0.2.1.x
branch, my node used +- 2x more RAM (not sure exactly).

ad "top": Dont forget to buffers and caches. So final amount of actually
used RAM by system is:
Used - Buffers - Cached.

My experience is that blank Debian system take around 10MB RAM. Currently,
my home server running Xen dom0, xen-tools, sshd and nagios nrpe takes 47 MB
RAM. Tor process for node like yours takes around 50 MB RAM. So I think 64
RAM is enough to run Tor without problems.

Marek

On Fri, Mar 6, 2009 at 12:33 AM, basile <basile at opensource.dyc.edu> wrote:

> The version I used is 0.2.0.33, but I realized that's not the issue.
> The mistake I made in reporting these number is that on the i686 box I
> used an initrd image in /dev/ram0 which is sized at 128MB.  Immediately
> upon booting, "free" reports 133 MB of RAM in use just before starting
> tor.   On the MIPS I used an initramfs image and "free" reports 5MB in
> use at the same point.  It looks like my i686 numbers are messed up, too
> high by 128 MB.
>
> Thanks for pointing that out.  I'm trying to answer the question what is
> the minimum amount of RAM required to run a bare minimum linux system
> which can support a tor relay/exit/directory node.  Suggestions?
>
> --
>
> Anthony G. Basile, Ph.D.
> Chair of Information Technology
> D'Youville College
> Buffalo, NY 14201
> USA
>
> (716) 829-8197
>
>
>
>
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