On Fri, 5 Mar 2010, M. Koehrer wrote: > > In theory it's possible to remove the timer interrupt from such an > > isolated core completely, but there needs to be some work done vs. the > > scheduler, accounting, RCU etc. There are people looking into this, > > but we have no patches yet. > I have checked the LAPIC addresses via the MSRs. > All LAPIC addresses for all CPU cores are the same. > I assume they share the very same configuration, thus a minimum step > would be to make a copy of this configuration data and to let CPU core 3 > point to this copy. This would allow to disable the timer. Really ? If it would be enough to disable the timer interrupt and not let it fire, it would have been done years ago. Did you even try to read what I said above ? > > ...., but there needs to be some work done vs. the > > scheduler, accounting, RCU etc. Linux was not designed that way and it requires a non trivial amount of work to get this sorted out: > > There are people looking into this, but we have no patches yet. Thanks, tglx -- 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
