Re: [PATCH] optional non-interactive mode for cpu scheduler

[Ingo Molnar <mingo@elte.hu>]

* Con Kolivas <kernel@kolivas.org> wrote:

> optional non-interactive mode for cpu scheduler

i think the following scheme would work better:

 - introduce a new SCHED_CPUBOUND policy
 - return ->static_prio + 5 for such tasks
 - keep their timeslice based off ->static_prio

the point is this: such tasks would thus be automatically and
perpetually considered 'CPU hogs'. Applications cannot abuse this
mechanism because they get the maximum 'penalty'.

and as a bonus, no magic sysctl and inherently more flexibility.

(note that this scheme has advantages above nice +5 because nice +5
still has the interactivity stuff on which can create priority
fluctuations and may thus affect workloads.)

if you agree with this scheme, would you be interested in implementing
this?

	Ingo