Here is my problem: I want to sort 10 million random integers: 
$start = Benchmark->new();

#RUN THE ALGORITHM
@sorted_numbers = sort { $a <=> $b } @numbers;

$end = Benchmark->new();
$diff = timediff( $end, $start );

[download]
And then it returns: 18 wallclock secs (14.59 usr + 0.97 sys = 15.55 CPU) However it takes much more than that. Could you help me about this? I'm a bit confused. Thank you.

In reply to Re^2: How to measure time for a particular code section? by abdullah.yildiz
in thread How to measure time for a particular code section? by abdullah.yildiz

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