But this will only happen if there are synchonization "effects". It
should not occur in the average case (i.e., >10% of interrupts). If
it does, it indicates to me one of three things: a buggy board, a
buggy driver, or a buggy PCI standard.
I'd be somewhat bothered if I found out that my computer was handling
100+ interrupts per second in which the device said "Oops... I didn't
really mean that..."
>
> > One thing that you could do with the I_DID_SOME_STUFF flag is use the
> > statistics to reorder the execution of interrupt handlers so that the
> > device that causes the most interrupts gets called first. Might be
> > cool, difficult to tell.
>
> You _must_ call all interrupt handlers that requested the same IRQ when
> this IRQ is raised. So your flag does not optimize anything.
It optimizes latency, that is all.
dave...
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