9.3. 在 OVS-DPDK 部署中保存电源

流程

1. 以 stack 用户的身份登录 undercloud。

2. Source stackrc 文件：

   $ source ~/stackrc

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3. 创建一个 Ansible playbook YAML 文件，如 /home/stack/cli-overcloud-tuned-maxpower-conf.yaml。

4. 在 cli-overcloud-tuned-maxpower-conf.yaml 文件中添加以下配置：

   cat <<EOF > /home/stack/cli-overcloud-tuned-maxpower-conf.yaml
   {% raw %}
   ---
   #/home/stack/cli-overcloud-tuned-maxpower-conf.yaml
   - name: Overcloud Node set tuned power state
     hosts: compute-0 compute-1
     any_errors_fatal: true
     gather_facts: false
     pre_tasks:
       - name: Wait for provisioned nodes to boot
         wait_for_connection:
           timeout: 600
           delay: 10
         connection: local
     tasks:
       - name: Check the max power state for this system
         become: true
         block:
           - name: Get power states
             shell: "for s in /sys/devices/system/cpu/cpu2/cpuidle/*; do grep . $s/{name,latency}; done"
             register: _list_of_power_states
           - name: Print available power states
             debug:
               msg: "{{ _list_of_power_states.stdout.split('\n') }}"
           - name: Check for active tuned power-save profile
             stat:
               path: "/etc/tuned/active_profile"
             register: _active_profile
           - name: Check the profile
             slurp:
               path: "/etc/tuned/active_profile"
             when: _active_profile.stat.exists
             register: _active_profile_name
           - name: Print states
             debug:
               var: (_active_profile_name.content|b64decode|string)
           - name: Check the max power state for this system
             block:
               - name: Check if the cstate config is present in the conf file
                 lineinfile:
                   dest: /etc/tuned/cpu-partitioning-powersave-variables.conf
                   regexp: '^max_power_state'
                   line: 'max_power_state=cstate.name:C6'
                 register: _cstate_entry_check
   {% endraw %}
   EOF

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5. 在角色数据文件中添加节能配置集。

   如需更多信息，请参阅 10.2。生成角色和镜像文件。

6. 将 cli-overcloud-tuned-maxpower-conf.yaml playbook 添加到裸机节点定义文件。

   如需更多信息，请参阅 10.5。创建裸机节点定义文件。

7. 确保在 NIC 配置模板中设置了队列大小。

   如需更多信息，请参阅 10.6。创建 NIC 配置模板。