2.6. iostat
iostat 工具由 sysstat 软件包提供，监控和报告系统输入/输出设备加载，以帮助管理员决定如何平衡物理磁盘之间的输入/输出负载。iostat 工具报告自 iostat 上次运行或启动后的处理器或设备利用率。您可以使用 iostat(1) 手册页中定义的参数集中这些报告在特定设备上的输出。有关
await 值的详细信息，以及导致其值变得很高的信息，请参阅以下红帽知识库文章： iostat 报告的值"await"的含义是什么？
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