C:\test>junk.pl hash_grep: *CMP::hash_grep hash_key_diff: *CMP::hash_key_diff hash_values_diff: *CMP::hash_values_diff using_vec: *CMP::using_vec Rate using_vec hash_values_diff hash_key_diff hash_grep using_vec 69161/s -- -81% -84% -88% hash_values_diff 363049/s 425% -- -14% -39% hash_key_diff 421810/s 510% 16% -- -29% hash_grep 594454/s 760% 64% 41% --