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From: mitchalsup@aol.com (MitchAlsup1)
Newsgroups: comp.arch
Subject: Re: Why VAX Was the Ultimate CISC and Not RISC
Date: Sun, 2 Mar 2025 21:35:03 +0000
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On Sun, 2 Mar 2025 12:03:58 +0000, Anton Ertl wrote:

> Lawrence D'Oliveiro <ldo@nz.invalid> writes:
>>How many clocks did Alpha take to process each instruction?
>
> For the 21064 see slide 15 of
> <https://people.eecs.berkeley.edu/~randy/Courses/CS252.S96/Lecture19.pdf>

Well, that was fun. Thanks.

> I.e., about 1 CPI for Ear, and about 4.3 CPI for TCP-B, with other
> benchmarks in between.
>
> Theoretical bottom CPI (peak performance) of the 21064 is 0.5.
>
> - anton