[Catalyst] assessing memory usage with fcgi

[Daniel McBrearty]

Hi

I'm trying to get a grip on this right now.

At the moment I am using

pmap -d

to see what's happening. I see

mapped: 49MB
writeable/private: 37MB
shared: 5.7MB (which seems to be session data)

why is mapped != writeable + shared ? which figure do I take per
process - mapped or writeable?

Is this a preferred way of assessing for fcgi? any better methods that
people use?

thanks

Daniel