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Select or download this
```
perl -d:DProf foo.pl
```
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```
perl -MDevel::Profiler foo.pl
```
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```
dprofpp
```
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```
main();

...

    return;
}
```

Total Elapsed Time = 1.859881 Seconds
  User+System Time = 1.389881 Seconds
...
 0.00       - -0.000      1        -      -  strict::import
 0.00       - -0.000      1        -      -  warnings::BEGIN
 0.00       - -0.000      1        -      -  warnings::import

Select or download this
```
main();

...

    return;
}
```

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Total Elapsed Time = 1.809848 Seconds
  User+System Time = 1.379848 Seconds
...
 0.00       - -0.000      1        -      -  warnings::import
 0.00       -  1.360      1        - 1.3600  main::main
 0.00       -  0.010      2        - 0.0050  main::BEGIN

Select or download this
```
main();

...

    return;
}
```

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Total Elapsed Time = 6.809867 Seconds
  User+System Time = 1.459867 Seconds
...
 0.00       - -0.000      1        -      -  strict::import
 0.00       - -0.000      1        -      -  main::do_nothing
 0.00       -  1.430      1        - 1.4300  main::main

Select or download this

Total Elapsed Time = 6.799829 Seconds
         Real Time = 6.799829 Seconds
...
 0.00       - -0.000      1        -      -  strict::import
 0.00       - -0.000      1        -      -  warnings::import
 0.00       -  6.780      1        - 6.7800  main::main