times() might be of some use too..., maybe in combination with ikegamis proposal? (taken from: perldoc -f times) 
times   Returns a four-element list giving the user and system times, in seconds, for this process and the children of this process.

                   ($user,$system,$cuser,$csystem) = times;

               In scalar context, "times" returns $user.

In reply to Re: Question about time module by Perlbotics
in thread Question about time module by shartz

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