calculation of average duration

[FObersteiner]

at the moment, the average execution time is calculated by using self.totalOperations of the Benchmark instance.

If I'm not mistaken, this gives invalid results since the number of ops is incremented in multiple places; here and here - additionally, the user-side code can increment it by calling b.incrementOperations(1), as in your 'basic' example.

This seems a bit like a separation-of-concerns thing; as a clean solution why not use self.durations.items.len as denominator ?

[hendriknielaender]

Thank you. You're correct, incrementing self.totalOperations in multiple places can lead to inconsistent or incorrect results when calculating the average execution time, especially when b.incrementOperations(1) is also called in the user-side code.

I've created a Pull Request to implement this change. Feel free to review and provide any feedback.