The ionice command is used to set I/O scheduling class and priority for a program. The I/O schedule for a program can be changed to the following: CFQ Noop scheduler Anticipatory Deadline The current Disk Scheduler can be viewed from root@twenty ~]# cat /sys/block/sd[ab]/queue/schedulernoop anticipatory deadline [cfq] The current scheduler can be changed by [root@twenty queue]# echo anticipatory > scheduler[root@twenty queue]# cat /sys/block/sda/queue/schedulernoop [anticipatory] deadline cfq Ionice Utility The ionice sets the io scheduling class and priority for a program or script. It supports the following three scheduling classes Idle: …