啟動 Tuned

1. 查看 tuned 服務狀態，開機預設是啟動，且目前是正常運作中。

   [root@kvm10 ~]# systemctl status tuned.service 
   ● tuned.service - Dynamic System Tuning Daemon
      Loaded: loaded (/usr/lib/systemd/system/tuned.service; enabled; vendor prese>
      Active: active (running) since Wed 2019-11-06 14:40:00 CST; 3h 18min ago
        Docs: man:tuned(8)
              man:tuned.conf(5)
              man:tuned-adm(8)
    Main PID: 779 (tuned)
       Tasks: 4 (limit: 11532)
      Memory: 19.4M
      CGroup: /system.slice/tuned.service
              └─779 /usr/libexec/platform-python -Es /usr/sbin/tuned -l -P
   
   Nov 06 14:39:52 kvm10.deyu.wang systemd[1]: Starting Dynamic System Tuning Daem>
   Nov 06 14:40:00 kvm10.deyu.wang systemd[1]: Started Dynamic System Tuning Daemo>