'Bundle exec' startup takes 20 times longer in JRuby vs MRI
-----------------------------------------------------------
Key: JRUBY-5181
URL: http://jira.codehaus.org/browse/JRUBY-5181
Project: JRuby
Issue Type: Improvement
Affects Versions: JRuby 1.5.3, JRuby 1.5.1
Reporter: Ivo Wever
Assignee: Thomas E Enebo
In a trivial test application, with only 2 gems in the Gemfile, I noticed the
following:
u...@machine:/tmp/foo$ time bundle exec foo
bundler: command not found: foo
Install missing gem binaries with `bundle install`
real 0m0.366s
user 0m0.310s
sys 0m0.060s
u...@machine:/tmp/foo$ time jruby -S bundle exec foo
bundler: command not found: foo
Install missing gem binaries with `bundle install`
real 0m4.296s
user 0m6.980s
sys 0m0.110s
The Gemfile contains just 2 gems. This is not due to JRuby startup time: that
accounts for at most half a second:
u...@machine:/tmp/foo$ time jruby -e "exit"
real 0m0.499s
user 0m0.460s
sys 0m0.070s
u...@machine:/tmp/foo$ time ruby -e "exit"
real 0m0.017s
user 0m0.010s
sys 0m0.020s
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