From: Joe Van Dyk <joevandyk@...>
Date: 2005-11-11T02:08:32+09:00
Subject: [SORTA OT] Getting CPU usage of a process

Hi,

I'd like to be able to get the CPU usage of a particular process. 
What are my options for doing so from Ruby?

I've found the libgtop ruby binding, and I could use that, but I would
rather not bring in another dependency.  This will run on Linux
systems only.

And would I want to use the elapsed real cpu time?  Or the sum of the
elapsed user and system cpu time?  (and then I believe I divide that
by the elapsed wall clock time)

Thanks,
Joe