理解 Linux 的 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...
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。