[tor-bugs] #27346 [Core Tor/sbws]: Improve sbws bandwidth accuracy

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#27346: Improve sbws bandwidth accuracy
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 Reporter:  teor           |          Owner:  (none)
     Type:  defect         |         Status:  new
 Priority:  Medium         |      Milestone:  sbws 1.0 (MVP nice)
Component:  Core Tor/sbws  |        Version:
 Severity:  Normal         |     Resolution:
 Keywords:                 |  Actual Points:
Parent ID:  #27338         |         Points:
 Reviewer:                 |        Sponsor:
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Comment (by pastly):

 Replying to [ticket:27346 teor]:
 > Better designs SHOULD:
 > * use at least 4 measurements that are at least 6 hours apart, because:

 Depending on how sbws is configured, it might already accidentally do
 this. By default it keeps results for 5 days and it **roughly** (again:
 depending on configuration) manages to do the entire network in a day.

 > * use at least 3 days of observed bandwidths, because:

 See above.

 > * weight bandwidths based on the time since the last bandwidth, because:
 > ...
 > * use a decaying average for measured and observed bandwidths, because:

 Both sound like reasonable this for after the MVP.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27346#comment:1>
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