pidstat:tldr:82581

The command "pidstat -d" is used to view disk I/O statistics for processes on a Linux system. Here is a breakdown of the command: - "pidstat" is the main command that allows you to monitor various system statistics for processes.

• "-d" is an option or flag that specifies that the specific statistics related to disk I/O should be displayed. When you run the command "pidstat -d", it will provide output showing disk I/O statistics such as: - kB_rd/s: kilobytes read per second
• kB_wr/s: kilobytes written per second
• kB_ccwr/s: kilobytes whose writing to disk was canceled due to another write request by the same process
• Command: the name of the command or process associated with the statistics
• PID: process ID of the command These statistics allow you to monitor the disk I/O activity for each process and identify any potential bottlenecks or excessive disk usage that may be affecting the system's performance.