Performance Optimization of the Reactor
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Key: MAVEN-1786
URL: http://jira.codehaus.org/browse/MAVEN-1786
Project: Maven
Issue Type: Improvement
Affects Versions: 1.1-beta-2
Environment: OS windows xp, JVM sun 1.4.2
Reporter: Emmanuel Renaud
Attachments: Goal.java, reactor-jprofiler.GIF
The Goal.checkForCycle method is a hotspot as the reactor starts.
Most of the time is spent in creating HashSets and filling them (see attached
screen shot).
Instead of creating a new HasSet each time, reusing the same improves the
performance of dependency analysis (see attached file Goal.java).
Due to security policy in my company I can't checkout the sources and run
non-regression tests, at least it works fine on our project.
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