[TUHS] Lorinda Cherry

[Warner Losh]

Damn, you guys found a bug in my venix emulation:

% echo 99k2vp8opq | ./git/venix/tools/vm86venix/venix
./git/venix/tools/vm86venix/disbt/usr/bin/dc
pid 70803 (venix): sigreturn eflags = 0x0

I'll have to see how hard it is to setup my Rainbow 100B running Venix and
if the benchmark works there or not.
Or if this is a bug in venix's dc...

Warner

On Thu, Feb 17, 2022 at 9:33 AM Andrew Hume <andrew at humeweb.com> wrote:

> altho i date back to those days, i don’t recall using that benchmark.
> when i’ve needed something bc-ish to take some time, i normally
> use a bessel function from bc -l
>
> > On Feb 17, 2022, at 2:24 AM, Andy Kosela <akosela at andykosela.com> wrote:
> >
> > On Wed, Feb 16, 2022 at 11:42 PM Andrew Diller <dillera at gmail.com>
> wrote:
> >>
> >>
> >>
> >>> On Feb 16, 2022, at 5:27 PM, Dave Horsfall <dave at horsfall.org> wrote:
> >>>
> >>> On Wed, 16 Feb 2022, Leah Neukirchen wrote:
> >>>
> >>>> Apparently it was a popular benchmark back in the day:
> >>>> https://www.tuhs.org/Archive/Documentation/AUUGN/AUUGN-V05.1.pdf
> >>>
> >>> Yep.
> >>>
> >>>>> The benchmark was "echo 99k2vp8opq I /bin/time dc > /dev/null’. It
> >>>>> uses dc (the desk calculator) to calculate the square root of 2 to 99
> >>>>> decimal places,
> >>>
> >>
> >> I tried that on some of the systems I have at hand. It didn't even
> register on my Mac....
> >
> > This would be more appropriate on modern machines:
> >
> > moon $ sysctl machdep.cpu.brand_string; echo 9999k2vp8opq | time -p dc
> >> /dev/null
> > machdep.cpu.brand_string: Intel(R) Core(TM) i5-4258U CPU @ 2.40GHz
> > real         1.87
> > user         1.87
> > sys          0.00
> >
> > --Andy
>
>
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