Psych is 30 times slower than Syck - at least under Ruby (1.9.3 vs 1.8.7)

Dear friends:

This simple script

#!/usr/bin/env ruby.<version>
require 'yaml'
t=Time.now
YAML.load_file(<path>)
puts Time.now-t

takes at least 30 times longer to execute
with <version>=1.9 than with <version>=1.8
where <path> points to a YAML file of about 50kB.

Who is in charge of the Ruby binding ?

Is there hope that we will get back the
speed of Ruby1.8 ?

Best regards, Joachim

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Forschungszentrum Juelich GmbH
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Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
Vorsitzender des Aufsichtsrats: MinDirig Dr. Karl Eugen Huthmacher
Geschaeftsfuehrung: Prof. Dr. Achim Bachem (Vorsitzender),
Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
Prof. Dr. Sebastian M. Schmidt
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