Yesterday, I tried using the /info method of the API to predict the time left until 10M questions on Stack Overflow. In the process, I found that the returned "questions per minute" value was always 2.7, day or night.

I understand that the data is cached and the rate is averaged over some period. But 2.7 questions per minute is 3888 questions per day, which is less than half of what Stack Overflow gets during a weekday. The question count returned by the same API method has been increasing at a much greater rate than 2.7. I suspect there is a bug in how this rate is computed.


I mean, the value's not wrong, just perhaps not useful? The QPM is taken over the entire lifetime of the site, so 10005086 / 3644369.9112 = 2.745354133577943, where 3644369.9112 is

((Date.now() / 1000) - site.launch_date) / 60

I'm not sure if there'd be a better default timespan though—it's probably better to just pull the question count for the period you're interested in and then compute the QPM over the frame of your choosing.

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