Linux 查看进程IO

1. 显示有I/O行为的进程

iotop 选项：

-o, --only only show processes or threads actually doing I/O

-p PID, --pid=PID processes/threads to monitor [all]

-P, --processes only show processes, not all threads

$ iotop -oP

2. 展示I/O统计

展示I/O统计，每秒更新一次

$ pidstat -d 1