Messages in this thread | | | From | (Joe Korty) | Subject | Re: [PATCH] 2.4.18 scheduler bugs | Date | Fri, 15 Mar 2002 16:59:31 -0500 (EST) |
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> > [...] But on the Athlon the IPI isnt going down a little side channel > > between cpus. > > but even in the Athlon case an IPI is still an IRQ entry, which will add > at least 200 cycles or more to the idle wakeup latency.
It is an idle cpu that is spending those 200 cycles.
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