[tor-bugs] #18832 [Metrics/metrics-lib]: Support parsing Torperf results files written by OnionPerf

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#18832: Support parsing Torperf results files written by OnionPerf
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 Reporter:  karsten              |          Owner:  karsten
     Type:  defect               |         Status:  needs_review
 Priority:  Medium               |      Milestone:
Component:  Metrics/metrics-lib  |        Version:
 Severity:  Normal               |     Resolution:
 Keywords:                       |  Actual Points:
Parent ID:                       |         Points:
 Reviewer:                       |        Sponsor:
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Comment (by karsten):

 Oh, good catch, there is of course no such guarantee!  But I think that we
 need to treat those keys differently than throwing an exception.  It's
 allowed to add new keys, and some of those yet unknown keys might have
 `DATEPERC` as prefix.  Yes, I know, far fetched, but it's easy to treat
 those keys as unknown in that case.  I just added a fix and a test.  Want
 to look again?  Thanks!

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18832#comment:3>
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