Intel design flaw

Ryan Carboni ryacko at gmail.com
Wed Jan 3 23:48:46 PST 2018


Fortunately Intel's IA-64 was designed properly, with coarse
multithreading, and explicit simultaneous instruction dispatch.

There is also enough demand for IA-64 for them to keep releasing new
versions.

It is also fortunate that Project Zero doesn't release exploits for the
predominant processor within thirty days, the same goes for the predominant
web browser.

I wonder what went wrong with processor design. Pentium 4 had about a
hundred million transistors. Now they have roughly thirty times that. Given
the amount of time spent on switching contexts and loading data, instead of
improving artificial benchmarks, reducing idle time would've been better by
allowing each core to hold thirty threads.

Although carryless multiplication would have been useful right when AES was
adopted....

Extrastatecraft is a good read.
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