4 ms·
Some of those results were due to the substantially better memory subsystem that itanics had compared to x86 systems of the time.
by bcrl 2y ago
Some of those results were due to the substantially better memory subsystem that itanics had compared to x86 systems of the time.
- hapless 2y agoBy the time this PDF deck dropped, AMD K10 / Opteron was out, and that ship had sailed. By 2004 the only thing Itanium had going for it vs a similarly sized Opteron system was the enormous L3 cache. Real good for SPECfp, I guess.
- bcrl 2y agoContext switches and interrupts were also pretty quick on itanic as well. Modern x86 has so much cruft that it Would Be Nice if those parts could be re-architected, but it's more like to just become more legacy baggage carried on into future CPU generations.