benchmarking f32 step calculation (#11890)

* benchmark steps with f32

* divide by self.steps - 1

* avoid steps <= 1

* Fix step size

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* Fix 'steps' print and print number of args

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* Add Test

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* fix comments

* Remove unneeded comment

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

Co-authored-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: parity-processbot <>