理解CPU 监控常用术语

• https://book.open-falcon.org/zh_0_2/faq/linux-metrics.html
• steal time
  • https://www.cnblogs.com/menkeyi/p/6732020.html

    • From ibm:

      Steal time is the percentage of time a virtual CPU waits for a real CPU while the hypervisor（虚拟机监控程序） is servicing another virtual processor.

• cpu.guest
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• cpu.irq irq时间占比
  • 中断占比时间