2.3. 使用 Receive Flow Steering（RFS）提高网络性能

流程

1. 将以下 MCO 示例配置集复制到 YAML 文件中。例如，enable-rfs.yaml：

   apiVersion: machineconfiguration.openshift.io/v1
   kind: MachineConfig
   metadata:
     labels:
       machineconfiguration.openshift.io/role: worker
     name: 50-enable-rfs
   spec:
     config:
       ignition:
         version: 2.2.0
       storage:
         files:
         - contents:
             source: data:text/plain;charset=US-ASCII,%23%20turn%20on%20Receive%20Flow%20Steering%20%28RFS%29%20for%20all%20network%20interfaces%0ASUBSYSTEM%3D%3D%22net%22%2C%20ACTION%3D%3D%22add%22%2C%20RUN%7Bprogram%7D%2B%3D%22/bin/bash%20-c%20%27for%20x%20in%20/sys/%24DEVPATH/queues/rx-%2A%3B%20do%20echo%208192%20%3E%20%24x/rps_flow_cnt%3B%20%20done%27%22%0A
           filesystem: root
           mode: 0644
           path: /etc/udev/rules.d/70-persistent-net.rules
         - contents:
             source: data:text/plain;charset=US-ASCII,%23%20define%20sock%20flow%20enbtried%20for%20%20Receive%20Flow%20Steering%20%28RFS%29%0Anet.core.rps_sock_flow_entries%3D8192%0A
           filesystem: root
           mode: 0644
           path: /etc/sysctl.d/95-enable-rps.conf

2. 创建 MCO 配置集：

   $ oc create -f enable-rfs.yaml

3. 验证是否列出了名为 50-enable-rfs 的条目：

   $ oc get mc

4. 要取消激活，请输入：

   $ oc delete mc 50-enable-rfs