https://blog.51cto.com/hanson2017/2057714
https://docs.vmware.com/cn/VMware-vSphere/6.7/rn/vsphere-update-manager-67-release-notes.html
另外，更新完成后报了两个错
https://kb.vmware.com/s/article/55806
https://kb.vmware.com/s/article/55636
内容是关于Intel处理器bug（猜测是之前爆出来的幽灵和熔断）的应对策略
默认策略对性能影响不大