> another related test-utility is one i wrote:
>
http://people.redhat.com/mingo/scheduler-patches/ring-test.c
> this is a ring of 100 tasks each doing work for 100 msecs and then
> sleeping for 1 msec. I usually test this by also running a CPU hog in
> parallel to it, and checking whether it gets ~50.0% of CPU time under
> CFS. (it does)