java9 -cp out-mr/mr.jar -Xlog:os,modules*,gc* ...Main
[0.002s][info][os] SafePoint Polling address: 0x00007f9c7f307000
[0.002s][info][os] Memory Serialize Page address: 0x00007f9c7f305000
[0.003s][info][os] HotSpot is running with glibc 2.22, NPTL 2.22
[0.007s][info][gc,heap] Heap region size: 1M
[0.009s][info][gc ] Using G1
[0.009s][info][gc,heap,coops] Heap address: 0x00000006c6200000, size: 3998 MB, Compressed Oops mode: Zero based, Oop shift amount: 3
[0.077s][info][modules,startuptime] Phase2 initialization, 0.0367418 secs
Java 9 version
[0.090s][info][gc,heap,exit ] Heap
[0.090s][info][gc,heap,exit ] garbage-first heap total 256000K, used 2048K [0x00000006c6200000, 0x00000006c63007d0, 0x00000007c0000000)
[0.090s][info][gc,heap,exit ] region size 1024K, 3 young (3072K), 0 survivors (0K)
[0.090s][info][gc,heap,exit ] Metaspace used 4225K, capacity 4532K, committed 4864K, reserved 1056768K
[0.090s][info][gc,heap,exit ] class space used 414K, capacity 428K, committed 512K, reserved 1048576K