Interesting.
I ran this on my ancient Win32 XP laptop and got: 
C:\Projects_Perl\testing>perl browseruk.pl
Deleted 22240 subarrays
Took 39.828125 seconds
Enter to see results:

[download]
this code is "fast".

In reply to Re^2: Fast Way to find one array in second array (Update: < 35 seconds.) by Marshall
in thread Fast Way to find one array in second array by melmoth

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