JRuby startup time significantly slower than MRI
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Key: JRUBY-2370
URL: http://jira.codehaus.org/browse/JRUBY-2370
Project: JRuby
Issue Type: Bug
Components: Performance
Affects Versions: JRuby 1.1RC3, JRuby 1.1RC2, JRuby 1.1RC1, JRuby 1.1b1,
JRuby 1.0.3, JRuby 1.0.2, JRuby 1.0.1, JRuby 1.0.0, JRuby 1.0.0RC3, JRuby
1.0.0RC2, JRuby 1.0.0RC1, JRuby 0.9.9, JRuby 0.9.8, JRuby 0.9.2, JRuby 0.9.1,
JRuby 0.9.0, JRuby 1.0.4, JRuby 1.1, JRuby 1.1.1, JRuby 1.1+
Environment: 32-bit Linux and Windows Vista
Reporter: Sean Reque
Priority: Minor
Fix For: JRuby 1.1+
Jruby startup time can take as much as a couple of seconds, compared with
instantaneous startup time using MRI. For instance, on Linux with Jruby 1.1,
simply invoking rake --version on a core 2 duo desktop got timed at 2.8
seconds, compared with .2 seconds using MRI rake. While insignifcant for web
deployment, this slow startup time greatly affects the use of ruby as a general
purpose scripting language.
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