On 2013-05-27, Dave Malham wrote:
I should have pointed out that the output boards were connected via the O2's PCi bus and were only 16 bit/48k - but then the processor's clock was only 180 MHz (iirc) in the machines we had.
If I'm not wrong, the O2 had a pretty decent I/O architecture apart from its processor, too. That makes a big difference for data heavy and latency sensitive operations like pushing multichannel around, and obviously power efficiency too, if we're talking about the modern situation. I dunno what the situation is with pi, there, but provided it does anything comparable to standard PC practice, it'll have even more powerful DMA and bus mastering facilities than anything in the earlier SGI arsenal. Not necessarily in too clean of a design, but still with plenty of autonomous bandwidth to go around.
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