C:\test>\perl5.14-64\bin\perl.exe 909437-1.pl
Lock hash took 0.904 seconds

C:\test>\perl5.14-64\bin\perl.exe 909437-2.pl
Lock scalar ref took 2.482 seconds

C:\test>\perl5.14-64\bin\perl.exe 909437-3.pl
Lock scalars ref took 2.951 seconds