[tor-bugs] #27321 [Core Tor/Nyx]: incorrect bw calculation during initial startup

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#27321: incorrect bw calculation during initial startup
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 Reporter:  a_p           |          Owner:  atagar
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:
Component:  Core Tor/Nyx  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Comment (by wagon):

 > The very first value for download and upload bandwidth is always
 extremely and unreasonably high (3GB/s) and reaches the actual value one
 second after that.

 > The problem of this is the impact on the avg. bw value shown, which is
 distorted due to this incorrect first value.
 I see the same with `nyx` and client-only `tor` on Linux. At first,
 depending on terminal's width, the plot of bandwidth may have the width
 size of about 20 points (Ox, horizontal). At second, bandwidth scale in
 the plot may by dynamic (Oy, vertical). So, the correct values are plotted
 only after the first "impulse"  (moving to the right once per second)
 leaves the plot, i.e. after about 20 seconds.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27321#comment:1>
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