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From "Sankaran, Nambi" <nsanka...@ebay.com>
Subject bundle plugin performance issue
Date Fri, 05 Oct 2012 23:42:05 GMT
Hi

We are using maven-bundle-plugin for generating OSGI Manifests.
Apart from compilation, bundle-plugin takes most amount of time during build.
In some projects it takes more than 3 seconds to generate Manifest.
In a multi-module project Manifest generation takes more 30 seconds.

I'm interested in improving the bundle-plugin performance.
I checked out the code and did basic analysis.
Here is what I found. ( Please correct me if I am wrong )

[1] total time taken by the plugin 3000 ms
[2] Analyzer.analyse() takes 1800+ ms
[3] Analyzer.analyzeJar() takes 1450+ ms

Nearly half of the time is spent in reading and parsing the class files.
It is done in a single thread.

Is it a good idea to, read and parse the files in parallel, with multiple threads?
Is there a better alternative to improve performance?

Thanks
Nambi



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