perfix

poor man's profiling for JVM's

• agent that instruments loaded classes: -javaagent:perfix.jar
• skip instrumentation with -Dperfix.excludes=java,com,org ...etc
• shutdown hook to report executed methods:
  * invocations
  * total execution time for the method in nanoseconds
  * average time in nanoseconds per method (= total/#invocatons)