yum -y install tuned
    tuned-adm active
    tuned-adm list

    [root@docker ~]# systemctl status tuned
    ● tuned.service - Dynamic System Tuning Daemon
    Loaded: loaded (/usr/lib/systemd/system/tuned.service; enabled; vendor preset: enabled)
    Active: active (running) since Thu 2020-01-02 13:44:15 CST; 4min 3s ago
    Docs: man:tuned(8)
    man:tuned.conf(5)
    man:tuned-adm(8)
    Main PID: 4902 (tuned)
    Tasks: 5
    Memory: 12.5M
    CGroup: /system.slice/tuned.service
    └─4902 /usr/bin/python2 -Es /usr/sbin/tuned -l -P
    Jan 02 13:44:13 docker systemd[1]: Starting Dynamic System Tuning Daemon…
    Jan 02 13:44:15 docker systemd[1]: Started Dynamic System Tuning Daemon.
    Hint: Some lines were ellipsized, use -l to show in full.
    [root@docker ~]#

    [root@docker ~]# tuned-adm active
    Current active profile: virtual-host
    [root@docker ~]# tuned-adm list
    Available profiles:

    • balanced - General non-specialized tuned profile
    • desktop - Optimize for the desktop use-case
    • hpc-compute - Optimize for HPC compute workloads
    • latency-performance - Optimize for deterministic performance at the cost of increased power consumption
    • network-latency - Optimize for deterministic performance at the cost of increased power consumption, focused on low latency network performance
    • network-throughput - Optimize for streaming network throughput, generally only necessary on older CPUs or 40G+ networks
    • powersave - Optimize for low power consumption
    • throughput-performance - Broadly applicable tuning that provides excellent performance across a variety of common server workloads
    • virtual-guest - Optimize for running inside a virtual guest
    • virtual-host - Optimize for running KVM guests
      Current active profile: virtual-host

    [root@docker ~]# tuned-adm profile virtual-guest
    [root@docker ~]# tuned-adm active
    Current active profile: virtual-guest

    自定义
    cd /usr/lib/tuned/
    mkdir test-performance
    vim test-performance/tuned.conf

    系统推荐
    [root@docker ~]# tuned-adm recommend
    virtual-guest
    [root@docker ~]# tuned-adm active
    Current active profile: virtual-guest
    [root@docker ~]#