Linux - I/O Activity by Process
Administrators system have always relied on top for per/process CPU and memory usage statistics, and/or vmstat/sar to analyze I/O , but there has been no easy way to analyze disk I/O on a per-process basis.
iotop is the missing tool. It shows the disk read / write rate, swapins, and total disk drive I/O for each process. The process list is sorted by I/O and updated 1 time / sec.
interactive controls: r reverses the sort order and q quits.
parameters: -d to set the delay between updates.
fedora yum install command line: yum install iotop
