The core module Unicode::UCD has a function called "charprop" that looks up the values of various properties of unicode characters. (These properties can also be viewed as a hash by calling charprop_all.) Looking up the "Age" of a code point is extremely fast but "Name" is very slow. Does anyone know what the problem is and how to speed up the "Name" lookup?

The first example looks up "Age" for each character in the "Alchemical Symbols" block, and the second example looks up the "Name" of the symbols: 


time perl -MUnicode::UCD=charprop -le 'print "$_ ".charprop($_,$ARGV[0
+]) for "128768".."128895"' Age

[download]
real	0m0.920s
user	0m0.888s
sys	0m0.017s


time perl -MUnicode::UCD=charprop -le 'print "$_ ".charprop($_,$ARGV[0
+]) for "128768".."128895"' Name

[download]
real	0m38.150s
user	0m37.429s
sys	0m0.454s
(Grabbing the hash from charprop_all is similarly slow...)

In reply to Unicode::UCD=charprop and the speed of various keys by Anonymous Monk

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