Tracy R Reed wrote:
Andrew Lentvorski wrote:
Also, interrupts on a normal x86 system pass through a bunch of chips
before actually hitting the processor in order to handle "legacy"
issues. Those are normally quite slow, as well.
I think it was you who told me one night at Denny's a few months ago
that an x86 chip spends a third of its power budget in decode because
of how complicated the instruction set is, largely to legacy issues.
I believe that data is old. The x86 decode transistor budget has remain
fixed, while CPU transistor budgets have increased. Last time I checked
(which was a while ago), it was down to 15%.
--Chris
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