Rails constantize is more than twice as slow on JRuby
-----------------------------------------------------
Key: JRUBY-2310
URL: http://jira.codehaus.org/browse/JRUBY-2310
Project: JRuby
Issue Type: Bug
Components: Performance
Reporter: Ola Bini
The Rails performance quest have led me to believe that this is part of the
problem. The constantize method is used in Route recognition, (at every request)
For a simple thing like
{noformat}
"Hash".constantize
{noformat}
for 10_000 times, MRI is at about 0.08s and JRuby 0.2s.
I would assume that constantize uses a simple eval, and that this is the
problem.
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