Messages in this thread | | | Date | Fri, 15 Jul 2005 18:54:30 +0100 (BST) | From | "Maciej W. Rozycki" <> | Subject | Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt |
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On Fri, 15 Jul 2005, Venkatesh Pallipadi wrote:
> I wouldn't say it is totally impossible. There are ways in which Linux can work > without a reliable Local APIC timer. One option being - make one CPU that gets > the external timer interrupt multicast an IPI to all the other CPUs that > wants to get periodic timer interrupt.
That's like scratching your left ear with your right hand -- broadcasting that external timer interrupt in the first place is more straightforward. If you want to exclude CPUs from the list of receivers, just use the logical destination mode appropriately.
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