[CentOS] Control IO related to a process

[Joseph L. Casale]

>If that doesn't do it for you then maybe choosing a different
>scheduler then cfq can help. Something like 'deadline' may
>work better for the workload.
>
>AFAIK ionice will only work with the cfq scheduler for now.

Appreciate that info, I have just been reading about the difference but
cant say I understand in real life what the difference between deadline
versus cfq is. I will try changing it on the fly and running my tests.

Thanks!
jlc