[TUHS] benchmark

[Folkert van Heusden via TUHS]

Hi,

Yes, but I wanted to solely test the cpu and also be independent from an 
OS, so bare metal. So that's why I made my version.

I also doubt that most of the benchmarks mentioned there will run on a 
regular pdp11?

regards

On 2026-02-18 05:43, Clem Cole wrote:

> The SPEC suite is well regarded and there are many results available on 
> the main website. However the complete suite costs money. But some 
> parts are FOSS and available at https://spec.cs.miami.edu/sources/
> 
> Larry's lmbench https://lmbench.sourceforge.net/whatis_lmbench.html Is 
> well known and a lot more drystone useful than simple things like 
> drystone.
> 
> Some others to consider are UnixBench, Bonnie++, foo, iozone. These 
> tools measure metrics like context switching, process creation, file 
> system throughput, and data transfer rates.
> Jetstor +4
> 
> * System & CPU Benchmarks:
> 
> * UnixBench: A classic benchmark for testing CPU, memory, and file 
> system performance.
> * Phoronix Test Suite: An comprehensive, open-source testing and 
> benchmarking platform for Linux and other operating systems.
> * Hardinfo: Provides detailed system information and basic benchmarks.
> * Dhrystone/Whetstone: Tests for integer and floating-point CPU 
> performance.
> 
> * Disk I/O & Filesystem Benchmarks:
> 
> * Bonnie++: Tests file system performance, such as file creation and 
> deletion.
> * IOzone: Measures filesystem performance across various operations, 
> including read/write speeds.
> * fio: A flexible tool for stress-testing storage, often used for 
> benchmarking SSDs and virtual hardware.
> 
> * Networking & Other Benchmarks:
> 
> * Iperf/Netpipe: Often used within clusters to measure network 
> throughput.
> * AIM7: Used to measure the performance of multiuser/shared systems.
> 
> One other thought. You might want to try to run whichever suite you 
> pick against a known baseline of real hardware.  I believe SDF-ICM has 
> Miss Piggy available again on the Internet. This system is an 11/70 
> that was the original development system at Microsoft, but I'm not sure 
> what OS they have running on it.
> 
> Sent from a handheld expect more typos than usual
> 
> On Tue, Feb 17, 2026 at 3:38 PM 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] [1]
>> 
>> Links:
>> ------
>> [1] http://www.vanheusden.com

-- 
www.vanheusden.com [1]

Links:
------
[1] http://www.vanheusden.com