[tor-bugs] #27135 [Core Tor/sbws]: Write descriptor bandwidths average in raw results

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#27135: Write descriptor bandwidths average in raw results
---------------------------+-------------------------------------
 Reporter:  juga           |          Owner:  juga
     Type:  defect         |         Status:  assigned
 Priority:  Medium         |      Milestone:  sbws 1.0 (MVP must)
Component:  Core Tor/sbws  |        Version:
 Severity:  Normal         |     Resolution:
 Keywords:                 |  Actual Points:
Parent ID:  #27108         |         Points:
 Reviewer:                 |        Sponsor:
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Comment (by juga):

 > take the decaying average of the measurements, and scale by the decaying
 average of the descriptor bandwidths

 could you point out what do you mean by decaying average?, this [0]?

 btw, it seems that the answer to my question in [1] is that 1/45 ~= 1/e

 > how we handle new relays (treat their old bandwidths as 1 is a nice
 simple way of rewarding stability)

 you mean for their descriptor bw?, for what we write to the bw file?

 [0] https://en.wikipedia.org/wiki/Exponential_decay#Mean_lifetime
 [1] https://github.com/pastly/simple-bw-
 scanner/issues/182#issuecomment-409341398

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27135#comment:10>
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