Re: Context switch times

Mika Liljeberg
2001-10-07T14:33:51Z

Ingo Oeser wrote:
> There are idle tasks per CPU. If there are runnable tasks and the
> idle-task of a CPU is running it, it is not fully loaded at this
> time.
>
> No idle task is running, if all CPUs are fully loaded AFAIR.

Yes. However, you still want to balance the queues even if all CPUs are
100% utilized. It's a fairness issue. Otherwise you could have 1 task
running on one CPU and 49 tasks on another.

MikaL