tuned-adm

1. 查詢目前使用的 profile。

   [root@kvm10 ~]# tuned-adm active 
   Current active profile: throughput-performance
   

2. 列出可用的 profile。

   [root@kvm10 ~]# tuned-adm list
   Available profiles:
   - balanced                    - General non-specialized tuned profile
   - desktop                     - Optimize for the desktop use-case
   - 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: throughput-performance
   

3. 查看推薦使用的 profile。

   [root@kvm10 ~]# tuned-adm recommend 
   atomic-guest
   

4. 將預設的 profile 切換到系統建議的 atomic-guest，但atomic-guest profile 不存在。

   [root@kvm10 ~]# tuned-adm profile atomic-guest
   Requested profile 'atomic-guest' doesn't exist.
   

5. 安裝 tuned-profiles-atomic。

   [root@kvm10 ~]# dnf install tuned-profiles-atomic-2.18.0-1.el9.noarch
   

6. 將預設的 profile 切換到系統建議的 atomic-guest。

   [root@kvm10 ~]# tuned-adm profile atomic-guest
   

7. 再查看目前使用的 profile 已改成 atomic-guest。

   [root@kvm10 ~]# tuned-adm active 
   Current active profile: atomic-guest