* Peter Zijlstra <pet...@infradead.org> wrote:
> On Fri, 2013-04-19 at 10:25 +0200, Ingo Molnar wrote:
> > It might eventually make sense to integrate the 'average load'
> > calculation as well
> > with all this - as they really have a similar purpose, the avenload[]
> > vector of
> > averages is conceptually similar to the rq->cpu_load[] vector of
> > averages.
>
> The /proc/loadavg definition isn't useful for anything remotely sane
> wrt load-balancing or otherwise, so I don't really see that integration
> happening (its a measure of how many tasks are blocked, where the
> load-balancer needs a measure of how many tasks are wanting to run).
Well, loadavg also includes running tasks:
nr_active = this_rq->nr_running;
nr_active += (long) this_rq->nr_uninterruptible;
but yeah, the two are not the same. It could at least integrate in terms
of averaging code, working on two different instances of data structures -
but yeah, full integration is indeed not possible.
Thanks,
Ingo
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