On Mon, Jun 24, 2013 at 09:17:18AM +0200, Jens Axboe wrote: > On Sun, Jun 23 2013, Linus Torvalds wrote: > > > > You could try to do that either *in* the idle thread (which would take > > the context switch overhead - maybe negating some of the advantages), > > or alternatively hook into the scheduler idle logic before actually > > doing the switch. > > It can't happen in the idle thread. If you need to take the context > switch, then you've negated pretty much all of the gain of the polled > approach. What about hooking into the idle_balance code? That happens if we are about to go to idle but before the full schedule switch to the idle task. In __schedule(void): if (unlikely(!rq->nr_running)) idle_balance(cpu, rq); -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
