David Bosschaert [http://community.jboss.org/people/bosschaert] replied to the 
discussion

"Benchmarking classloaders"

To view the discussion, visit: http://community.jboss.org/message/553267#553267

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Hi Kabir,

I just implemented something like this for the OSGi performance benchmarks. 
Here's a quick description of the bundle dependency topology that it creates:
 5 (Versioned) Common Bundles
   - Exports org.jboss.osgi.test.common;version=x
 5 Numbered (but not versioned) Util Bundles
   - Imports org.jboss.osgi.test.common
   - Exports org.jboss.osgi.test.util[x];uses="org.jboss.osgi.test.common"
 5 Versioned Interfaces Bundles
   - Exports org.jboss.osgi.test.versioned;version=x
 5 Versioned Impl Bundles
   - Imports org.jboss.osgi.test.common;version=[x,x]
   - Imports org.jboss.osgi.test.versioned;version=[x,x]
   - Imports org.jboss.osgi.test.util[x]
   - Exports 
org.jboss.osgi.test.versioned.impl;version=x;uses=org.jboss.osgi.test.util[x]
 a large number of test bundles (number configurable)
   - Imports org.jboss.osgi.test.common;version=[x,x]
   - Imports org.jboss.osgi.test.versioned;version=[x,x]
   - Imports org.jboss.osgi.test.versioned.impl;version=[x,x]
Where x is a number [1..5].

Each test bundle loads a class of each of its 3 dependency packages in its 
activator. This also triggers an indirect load on the Util[x] class.

It's available on master in jbosgi on github:  
http://github.com/jbosgi/jbosgi/blob/master/testsuite/performance/src/test/java/org/jboss/osgi/test/performance/bundle/BundleInstallAndStartBenchmark.java
 BundleInstallAndStartBenchmark.java

You might be able to reuse some of this...

David

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