Quote: on-chip timer interrupts are scheduled and canceled at the cost of a register access

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Another advantage of the APIC facility is that … access), and substantial overhead is only incurred when … [p. 221] In summary, using APIC timers to back … of 50 and 20 .micro.secs past the scheduled … 2.1%, respectively.   Google-1   Google-2

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Quote: back up soft timers with on-chip timer interrupts; low overhead

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Topic: interrupts (25 items)