If you want to see the log the JIT compiler is producing when running java and starting up the JVM in either client or server mode, you would need the -XX:+LogCompilation JVM flag option. In order to pass this flag we also need -XX:+UnlockDiagnosticVMOptions as well as -XX:LogFile= to store the XML log output that is produced.

In short for c1 JIT compiler or in other words JVM in client mode:

java -d32 -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation -XX:LogFile=output.xml Main

less ./output.xml | grep C1

for c2 JIT compiler or in other words JVM in server mode (Mac OS X JVM default mode):

java -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation -XX:LogFile=output.xml Main

less ./output.xml | grep C2

For further reading: LogCompilation Overview