[tor-bugs] #10712 [Metrics Website]: Mention the time period more explicitly

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#10712: Mention the time period more explicitly
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     Reporter:  infinity0        |      Owner:  karsten
         Type:  defect           |     Status:  needs_information
     Priority:  normal           |  Milestone:
    Component:  Metrics Website  |    Version:
   Resolution:                   |   Keywords:
Actual Points:                   |  Parent ID:
       Points:                   |
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Comment (by infinity0):

 Replying to [comment:6 infinity0]:
 > > - OTOH, if you instead "divide total requests in a UTC '''week''' by
 10", then the graphs would ''not'' look the same, and you would want to
 apply my patch but say "per week" instead of "per day".

 Ah, I suppose you would divide by 70, if you were counting over the course
 of 1 week. I understand your point better now. You are basically treating
 each point-event (a directory request) as an event that lasts for 2.4
 hours, then counting "how many concurrent events" exist over the course of
 a day on average. In this context, there is not really an "aggregation"
 period, more of an "averaging" period.

 I don't think "per day" is misleading though - it lets the user know what
 the resolution of the data is. You would still get a different graph if
 you averaged per-week - it would have a similar scale to the per-day
 graph, but the actual precise output would be different.

 Alternatively, you could say "concurrent users" or "est. concurrent users"
 instead of "users per day".

 Some suggestions for the FAQ:

 {{{
  Q: How do you get from these directory requests to user numbers?
 -A: [etc] the average client makes 10 such requests per day. [etc]
 +A: [etc] the average client makes 10 such requests per day. Another way
 of looking at it, is that we assume that each request represents a client
 that stays online for 2h24m.

  Q: So, are these distinct users per day, average number of users
 connected over the day, or what?
 -A: Average number of users connected over the day. [etc]
 +A: Average number of concurrent users, estimated from data collected over
 a day. [etc]
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10712#comment:7>
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