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#!/usr/bin/perl

...
    sleep(5);
    warn "\n";
}

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1 start timer diff = 0.000634908676147461, time = 1427985442.36442, no
+w = 1427985442.36378
Timer
...
4 start timer diff = 5.00066781044006, time = 1427985459.37157, now = 
+1427985454.3709
Timer
4 got timer diff = 0.000627279281616211, elapsed = 0.00244379043579102
+, time = 1427985459.37401, now = 1427985459.37338