Cache jar content list to speed up file? operation
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Key: JRUBY-6230
URL: https://jira.codehaus.org/browse/JRUBY-6230
Project: JRuby
Issue Type: Improvement
Components: Core Classes/Modules
Affects Versions: JRuby 1.6.5
Reporter: Uwe Kubosch
Fix For: JRuby 1.7
Attachments:
0001-Added-a-jarfile-entry-cache-to-speed-up-File.file-ca.patch
Hi!
While profiling our Ruboto app, we noticed a performance regression in startup
after upgrading JRuby from 1.6.4 to 1.6.5/1.7.0.dev. Profiling revealed lots
of time lost in File.file? calls when the load path includes jar files.
I have attached a patch that adds a cache for looking up the contents of jars.
This reduces the strain on the file system considerably.
All tests run fine after the patch.
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