Messages in this thread | | | Date | Thu, 5 May 2005 14:03:11 +0200 | From | Andi Kleen <> | Subject | Re: [RFC][PATCH] i386 x86-64 Eliminate Local APIC timer interrupt |
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On Thu, May 05, 2005 at 12:16:21AM -0400, Brown, Len wrote: > On Fri, 2005-04-29 at 22:43, Pallipadi, Venkatesh wrote: > > > The patch as it is should handle 8259 case using the regular APIC > > timer. It only adds broadcast when IOAPIC is used for timer > > interrupt. > > While they don't need the broadcast capability of this patch, > uniprocessors do need the change to stop using LAPIC timer > if they support C3 (as virtually all laptops do). > It was a mistake to allow using the LOC on a uniprocessor > in the first place -- as the UP system runs perfectly fine > with timers coming in on IRQ0 and doesn't need another interrupt.
Yes I agree. It does not make much sense to run two timers on a CPU. I already changed that in my x86-64 tree. i386 will hopefully follow at some point.
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