The interface is a bit annoying, but the tool is really cool.

100 cycles of `matrixprod`:
``
stress-ng -c1 --cpu-ops 100 --cpu-method matrixprod
``
`man stress-ng` gives the list of possible `--cpu-method`. It documents `matrixprod` as:
> <matrix product> of two 128 × 128 matrices of double floats. Testing on 64 bit <x86> hardware shows that this is provides a good mix of memory, cache and floating point operations and is probably the best CPU method to use to make a CPU run hot.

If you don't specify the `--cpu-method` it apparently loops through every method one by one.

Limit time to 1s instead of limiting cycles:
``
stress-ng -c1 -t1 --cpu-method matrixprod
``


 stress-ng

ID: stress-ng