Here are "easiest" and "hardest" of the final test files plus one really evil bugger one of developers found. Test time are on a Dell Optiplex 745:

Processor: Core 2
Speed: 1.86 GHz
Level 1 cache: 32KB
Level II cache: 256M
Main RAM: 4G 

easy

-,-,-,-,-,-,5,-,-
7,6,-,5,1,-,3,-,-
8,5,-,-,7,-,-,1,4
-,-,-,-,-,1,-,7,3
3,1,7,9,-,5,8,4,6
4,9,-,7,-,-,-,-,-
9,7,-,-,3,-,-,2,5
-,-,6,-,9,2,-,8,1
-,-,4,-,-,-,-,-,-

real    0m0.038s
user    0m0.027s
sys     0m0.006s

hard

-,-,-,-,-,-,-,-,-
-,-,-,-,-,3,-,8,5
-,-,1,-,2,-,-,-,-
-,-,-,5,-,7,-,-,-
-,-,4,-,-,-,1,-,-
-,9,-,-,-,-,-,-,-
5,-,-,-,-,-,-,7,3
-,-,2,-,1,-,-,-,-
-,-,-,-,4,-,-,-,9

real    0m5.324s
user    0m5.311s
sys     0m0.007s

evil

-,-,5,-,-,-,-,4,-
-,-,-,8,-,-,-,-,6
3,-,2,-,-,1,-,-,-
-,-,-,-,-,4,-,2,-
-,-,9,-,-,-,5,-,-
-,6,-,3,-,-,-,-,-
-,-,-,-,-,-,-,-,3
-,-,-,-,-,5,-,-,-
-,1,-,-,-,-,6,8,-

real    0m27.371s
user    0m27.207s
sys     0m0.020s

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In reply to Re^4: Subroutine overhead in Perl by enemyofthestate
in thread Subroutine overhead in Perl by enemyofthestate

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