Understanding Linux IOWait
原文英文，约1800词，阅读约需7分钟。发表于：。I have seen many Linux Performance engineers looking at the “IOWait” portion of CPU usage as something to indicate whenever the system is I/O-bound. In this blog post, I will explain why this approach is unreliable and what better indicators you can use.Let’s start by running a little experiment – generating heavy I/O usage on […]
本文介绍了IOWait不是可靠的系统I/O绑定指标，提供了更好的指标。建议查看应用程序特定的可观察性，vmstat中的“b”列和每个进程的统计信息。Percona Monitoring and Management可以安装插件来查看进程的运行情况。
