Peter Donald created BUILDR-658:
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Summary: Improve the speed of the all-in-one package
Key: BUILDR-658
URL: https://issues.apache.org/jira/browse/BUILDR-658
Project: Buildr
Issue Type: Bug
Components: Packaging
Affects Versions: 1.4.10
Reporter: Peter Donald
Assignee: Peter Donald
Fix For: 1.4.10
Running buildr under jruby is slow. A large portion of the blame can be
attributed to rubygems and some can be attributed to the startup time of
parsing the ruby files and the bytecode compilation under the JVM.
It seems this is largely fixable by applying a few ugly hacks. These include;
* Extracting all the ruby code into one directory. (Seems to show the biggest
improvement)
* Running jrubyc over the codebase and replacing all the .rb files with quires
against the .class files such as warbler does
In one project we applied these techniques and our startup time when from ~23s
to ~1.5s however some projects see even better improvements. See [1] for a
better explanation and some additional tricks to try.
[1]
https://logstash.jira.com/browse/LOGSTASH-563?focusedCommentId=14695&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14695
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