nohup java -server -Xms1g -Xmx1g -XX:+UseG1GC -XX:MaxGCPauseMillis=1000  \
-XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=30 \
 -XX:G1MaxNewSizePercent=30 -XX:MaxMetaspaceSize=512m \
 -XX:MetaspaceSize=128m -XX:G1HeapRegionSize=16m \
 -XX:ErrorFile=/home/project/jxcy_project/jvm_log \
 -XX:+DisableExplicitGC \
 -XX:+HeapDumpOnOutOfMemoryError \
 -XX:HeapDumpPath=/home/project/jxcy_project/jvm_log \
  -Xlog:gc*:file=/home/project/jxcy_project/gc-logs/gc.log:uptimemillis,pid:filecount=5,filesize=200m  \
   -Dcom.sun.management.jmxremote -Djava.rmi.server.hostname=192.168.3.102 \
   -Dcom.sun.management.jmxremote.port=9998 \
    -Dcom.sun.management.jmxremote.ssl=false \
     -Dcom.sun.management.jmxremote.authenticate=false -jar jxcy-game-server.jar &

控制GC日志相关的参数是：

 -Xlog:gc*:file=/home/project/jxcy_project/gc-logs/gc.log:uptimemillis,pid:filecount=5,filesize=200m

刚开始的时候，配置filecount和filesize的时候总是报错，后台使用命令查看当前jvm中-xlog的帮忙信息才配置对：

java -Xlog:help