[TUHS] Dhrystone Benchmark (was: Unix on Zilog Z8000?)

[Warner Losh]

On Fri, Jan 24, 2020, 6:50 PM Oliver Lehmann <lehmann at ans-netz.de> wrote:

> Sorry... I hit send to early by mistake... I wanted to include a
> comparison chart...
>
> CPU   MIPS   MIPS
>      System                      OS          CPU     (MHz)  V1.1   V2.1
> REF
> ### ---------------------- ------------ ----------- ----- ------ ------ ---
> ...
> 316 IBM PC/AT              PCDOS 3.0    80286         6.0    0.39 -----   0
> 317 ATT PC6300             MSDOS 2.11   8086          8.0    0.39 -----   0
> 318 Onyx C8002             IS/1 1.1(V7) Z8000         4.0    0.29 -----   0
> 319 PDP 11/34              UNIX V7M     ----------- -----    0.25 -----   0
> ...
>
> So WEGA at P8000 is between 317 and 318 - and 318 is the the Onyx
> mentioned as well.... but what is "IS/1 1.1"?
>

This would be the Interactive Systems V6 port, I think. At least that is
what wikipedia says:

"ISC's 1977 offering, IS/1, was a Version 6 Unix
<https://en.m.wikipedia.org/wiki/Version_6_Unix> variant enhanced for
office automation running on the PDP-11
<https://en.m.wikipedia.org/wiki/PDP-11>."

But there is a V7 after it, so maybe it's a Version 7 port instead...

Warner

Best Regards,
> Oliver
>
> Oliver Lehmann <lehmann at ans-netz.de> wrote:
>
> > By the way.... I found some dhry-c output I ran on WEGA
> >
> > #83 cc -O -DHZ=60  -DREG=register -c dhry_1.c
> > #84 cc -O -DREG=register -c dhry_2.c
> > #85 cc -o dhry dhry_1.o dhry_2.o
> > #86 echo 30000 | ./dhry | awk '/Lang/ || /^Micro/ {print} \
> > /per Sec/ {mips=$4/1757;print;printf("Dhrystone MIPS:%38.04f\n",mips)}'
> > Dhrystone Benchmark, Version 2.1 (Language: C)
> > Microseconds for one run through Dhrystone: 1652.8
> > Dhrystones per Second:                       605.0
> > Dhrystone MIPS:                                0.3443
> > #87 echo 30000 | ./dhry | awk '/Lang/ || /^Micro/ {print} \
> > /per Sec/ {mips=$4/1757;print;printf("Dhrystone MIPS:%38.04f\n",mips)}'
> > Dhrystone Benchmark, Version 2.1 (Language: C)
> > Microseconds for one run through Dhrystone: 1652.2
> > Dhrystones per Second:                       605.2
> > Dhrystone MIPS:                                0.3445
>
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