On Wed, 2013-02-20 at 22:23 +0800, Alex Shi wrote: > > But but but,... nr_running is completely unrelated to utilization. > > > > Actually, I also hesitated on the name, how about using nr_running to > replace group_util directly?
The name is a secondary issue, first you need to explain why you think nr_running is a useful metric at all. You can have a high nr_running and a low utilization (a burst of wakeups, each waking a process that'll instantly go to sleep again), or low nr_running and high utilization (a single process cpu bound process). There is absolutely no relation between utilization and nr_running, building something on that assumption is just wrong and broken. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
