$ time java -client -Xint NoOptimisation
Hello world

real    0m0.201s
user    0m0.190s
sys     0m0.013s

$ time java -client -Xmixed NoOptimisation
Hello world

real    0m0.073s
user    0m0.063s
sys     0m0.017s

$ time java -client -Xcomp NoOptimisation
Hello world

real    0m1.647s
user    0m1.643s
sys     0m0.033s

