On Fri, 28 Aug 2009, Thomas Gleixner wrote: > Right, and I think we can get there. The timer can be eliminated with > some work. Faults shouldn't happen on that CPU and all other > interrupts can be kept away with proper affinity settings. Softirqs > should not happen on such a CPU either as there is neither a hardirq > nor a user space task triggering them. Same applies for timers. So > there are some remaining issues like IPIs, but I'm pretty sure that > they can be tamed to zero as well. There are various timer generated thingies like vm statistics, slab queue management and device specific things that run on each processor. -- 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