Finding out what ran when...

[Steve Bertrand]

I have rrdtool plotting graphs for me for system performance, memory,
cpu etc, and about 4:30 AM, my cpu utilization goes through the roof.

I know this is amanda (backup) doing this as it runs at this time, but
I am curious to know if there are any utilities that can *watch* the
system at night and report what did what and when.

Perhaps something that can report if something uses xx% of cpu, or
xxMB of memory?

Tks,

Steve