Chuck Remes created JRUBY-6276:
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Summary: Fixnum#== is gets very slow as a boolean OR expression
gets longer
Key: JRUBY-6276
URL: https://jira.codehaus.org/browse/JRUBY-6276
Project: JRuby
Issue Type: Bug
Components: Performance
Affects Versions: JRuby 1.6.5
Environment: Mac OSX 10.6.x
Reporter: Chuck Remes
Priority: Minor
Attachments: equals_bench.rb, out
I wrote a short benchmark to see if the order of variables and Constants
mattered when doing a comparison. It showed that JRuby gets quite slow as a
boolean OR expression gets longer which indicates the #== could use a little
help. The benchmark and results are enclosed. I compared it to RBX which, while
quite a bit slower, doesn't show the *steep* performance drop-off as the
expression gets longer like JRuby does.
Yes, I'm looking for perfection. :)
After all, this is merely comparing a few integers for cryin' out loud. This
should be near native speed (in my dreams).
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