From: botp <botpena@...>
Date: 2010-06-25T13:01:17+09:00
Subject: Re: Count substrings in string, scan too slow

On Fri, Jun 25, 2010 at 1:16 AM, Michael Fellinger > I've just run
some benchmarks with strscan, and it's at least in the
> same ballpark as the other approaches, unless you're on rubinius, but
> then all string processing is really slow on that anyway.
>
> Benchmark with strscan here: http://gist.github.com/451675
>

that is not fair for strscan.. you are recreating the object inside the loop :)

outside loop do:
   s=StringScanner.new "some string foo..."
   s2=s.dup

inside loop do:
   s=s2
   .... s.scan_until...

best regards -botp