The Ripple Effect

System Abstractions - Déjà Vu all over again...

abstraction, Large memory, TidalScale, virtualization, virtual memory

I’ve known Ike Nassi since we both worked at Digital Equipment back in the good old days, and I’ve always enjoyed talking to Ike about computer architecture. In some ways, what Ike’s doing at TidalScale seems very déjà vu with what DEC did in that timeframe when it introduced its first mini-computer with real virtual memory – the VAX-11/780. Virtual memory is an abstraction – let’s pretend we have a lot of physical memory even though we don’t; TidalScale is an abstraction – let’s pretend we have a big, powerful computer, even though we don’t.In both cases the idea might seem highly questionable to someone whose job is to squeeze the last Iota of performance out of a computer.

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