Incorrect calculation of avg_response_time and current_rps in no_web mode

[debugtalk]

When I ran locust in no_web mode, I found out that the result will be calculated in every 2 seconds. However, each time when locust calculates avg_response_time and current_rps, it will use the whole history data of the current test.

avg_response_time = float(total_response_time) / num_requests

current_rps = avg(all_reqs)

I do not think this method does the right thing, shouldn't it calculate the instant average data only use the data in the interval 2 seconds?

[cgoldberg]

please see current_rps implementation in stats.py:

locust/locust/stats.py

Line 214 in 328201b

def current_rps(self):