On Tue, 2013-02-12 at 01:31 +0400, Kirill Tkhai wrote: > It's possible a situation when rq->rt is throttled or > it has no child entities and there are RT tasks ready > for execution in the rq which are the only tasks > of TASK_RUNNING state. In this case pick_next_task > takes idle tasks and idle wastes cpu time. That's not a waste of CPU time, that's utilization enforcement the thing it is designed to do. I'd rather see borrowing go away, bodyguard being either a ruthless thug who may save your bacon, or unemployed. AFAIKT, the throttle is useless in any other role, just having it standing around glaring across the room occasionally can turn sensitive realtime into a quaking heap of jello. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
