> > moment work for them becomes available. I see no reason why an idle cpu
> > should be forced to remain idle until the next tick, nor why fixing that
> > should be considered `broken'.
>
> performance. IPIs are expensive.
On a PIII I can see this being the case, especially as they dont power save
on hlt nowdays. But on the Athlon the IPI isnt going down a little side
channel between cpus.
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This archive was generated by hypermail 2b29 : Fri Mar 15 2002 - 22:00:22 EST