hi On Wed, Apr 16, 2008 at 11:22 AM, shyam Burkule <shyam.burkule@xxxxxxxxx> wrote: > > I was reading about schedular.. i have following question.. > > Who schedule the schedular? scheduler is just a code path without "task entity". it runs on behalf on any running code path... basically, it is triggered by timer handler, be it the regular timer tick...or in current tickless situation, the one shot timer that is pre-programmed. In essence, when process is executed, its time slice is also calculated and timer is programmed to "shoot" at that time. The benefit is, "excessive" time slice can be reduced.... but AFAIK, there is a cost due to timer reprogramming. And it can go worse if many apps submit more timers... like you can watch with powertop regards, Mulyadi. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
