Re^2: is index faster than regexp for fixed text token?

I don't know, I definitely get a big difference. This is with Perl 5.10.0

Without study:
        Rate  index regexp
index  466/s     --   -27%
regexp 639/s    37%     --

With study:
         Rate  index regexp
index   467/s     --   -54%
regexp 1019/s   118%     --
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Doesn't it make sense that regexp has an advantage in 5.10 since it is building a trie like Regexp::Assemble?

SSF

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Re^3: is index faster than regexp for fixed text token? by ikegami (Patriarch) on Jul 06, 2009 at 16:36 UTC
There's no trie involved since there's no alternation.	[reply]