No way, any sufficiently advanced technology is indistinguishable from magic and IRIX was so very, very advanced. IRIX hasn't been in development for almost two decades now and it's still more advanced in aspects like guaranteed I/O and software management (inst(1M))... What does that say about it and what does it say about the engineers who worked on it?
Irix even had "virtual swap" which had no (or very insufficient sized) backing store for it, just to handle all the superlarge allocations from which it only uses a tiny amount.
I would have thought some of the IRIX scheduler made it into Linux by now.