Both golo and run commands can be given JVM-specific flags using the JAVA_OPTS environment variable.

As an example, the following runs fibonacci.golo and prints JIT compilation along the way:

# Exporting an environment variable
$ export JAVA_OPTS=-XX:+PrintCompilation
$ golo golo --files samples/fibonacci.golo

# ...or you may use this one-liner
$ JAVA_OPTS=-XX:+PrintCompilation golo golo --files samples/fibonacci.golo