[TUHS] benchmark

[segaloco via TUHS]

On Tuesday, February 17th, 2026 at 12:38, Folkert van Heusden via TUHS <tuhs at tuhs.org> wrote:

> Hello,
> 
> I wrote a PDP11/70 emulator that I would like to know the relative speed
> (relative to a real PDP11) of.
> 
> For that I wrote a benchmark that only (crudely) tests the CPU-speed: no
> i/o (only when it is finished), no mmu.
> 
> Anyone willing to give it a try? I tested it on my own emulator and on
> simh.
> 
> https://komputilo.nl/emulation/PDP-11/benchmark/
> 
> --
> www.vanheusden.com [1]
> 
> Links:
> ------
> [1] http://www.vanheusden.com
> 

Towards the TUHS end, are there any PDP-11 UNIX benchmarks from back in
the day worth comparing with?  I know I've seen benchmark statistics in
BSTJ articles, but I couldn't tell you from memory if the actual code of
the benchmark is available.

Either way, that may be a viable angle to this sort of thing, finding
existing benchmark analyses and applying them to your emulator.

- Matt G.