PCP 工具是RHEL7/Centos7里引入的一个非常强大的性能分析监控工具，引用一下其官方站 点及红帽官方的介绍：Performance Co-Pilot (PCP) is an open source, distributed, metrics gathering and analysis system. This includes coverage of activity in the areas of: CPU, disk, memory, swapping, network, NFS, RPC, filesystems, and per-process statistics. 其可以提供GUI的观察平台，也可以通过提供数据给vector、grafana、web……

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