[TUHS] Lorinda Cherry
paul.winalski at gmail.com
Thu Feb 17 09:49:01 AEST 2022
On 2/16/22, Clem Cole <clemc at ccc.com> wrote:
> Marketing people in particular like to grab a single number for 'goodness'
> just to try to show mine is better than yours (my current disgust has been
> the clock rate of the processors which sadly, my employer was one of the
> worst in using as a figure of merit).
That, and instructions/second. The IBM S/370 model 158 was a true 1
MIPS machine. The VAX-11/780 executed about 500 KIPS. But the 11/780
and the model 158 were almost a dead heat when it came to the
execution speed of real world applications. Why? Mainly because the
VAX architecture was a lot CISC-ier than S/370, which was basically a
load/compute/store architecture. The VAX got a lot more done with
each individeual instruction than the S/370.
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