dbr's questions

Basically I have a remote screen session, which I wish to automatically reattach to.. Currently I'm doing this by with the following command (as an iTerm bookmark, or an alias)

ssh host -t screen -x thesessionname

This works fine, but if the session dies for whatever reason, I'd like it to be recreated when I next connect. The -R flag for screen is almost perfect:

ssh host -t screen -R -S thesessionname

..but if the session is already attached, a second session gets made (as -R simple looks for the first detached session, if none are found it creates a new one)

Is there a way to make the -R flag look for attached sessions also, and only create a new one if thesessionname doesn't exist?

If this is not easily doable, how could I automatically recreate the screen session when it dies? Perhaps a script run via cron that looks for the named session, creating it should it not exist?

Is there a script that will show memory usage as a graph, for example as a pie-chart, with each process being being a separate slice?

I'm not looking for something like Munin to graph memory usage over time, but rather show the memory usage per-process at a single point in time.

To make my request even more obscure, it is for a headless server (so no X applications). The simplest way would be to write a PNG file, or possibly an HTML file (which could use Javascript to allow the filtering of processes, changing between graph-types and so on)