Is there a better way to determine elapsed time in Perl?

Question

my $start_time = [Time::HiRes::gettimeofday()];
my $diff = Time::HiRes::tv_interval($start_time);

print \"\\n\\n$diff\\n\";

Answer 1

That's pretty much it -- that will give you high resolution elapsed time. Unless, of course, someone messes with the system clock.