pmahoney/melaza

Melaza

Java profiler with JRuby extensions.

This is a work in progress and unlikely to be usuable, unfortunately.

Melaza was forked from JIP. Major changes from the original JIP include:

• build converted to use Maven
• bytecode library upgraded to ASM 4
• code split into core, agent, and console packages

Building

$ mvn package

Profiling

$ melaza_root=/path/to/melaza
$ version=1.0.0-SNAPSHOT
$ agent=${melaza_root}/melaza-agent/target/melaza-agent-${version}.jar
$ alias melaza-console="java -jar ${melaza_root}/melaza-console/target/melaza-console-${version}.jar"
$ jruby -J-javaagent:${agent} prog.rb
$ melaza-console profile.xml

TODO

• Finish migrating config engine to own class
• Add tests of default instrumentation
• Add tests of JRuby instrumentation
• Improve logging configuration
• Improve configuration documentation
• Convert call tree in GUI to use a tree table
• Or, create HTML GUI instead
• Investigate state of interactive control
• Allow merging of thread pool roots, manually or by detection
• Lots more