[metrics-bugs] #33076 [Metrics/Analysis]: Graph onionperf and consensus information from Rob's experiments

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Feb 4 14:49:02 UTC 2020


#33076: Graph onionperf and consensus information from Rob's experiments
-------------------------------------------------+-------------------------
 Reporter:  mikeperry                            |          Owner:
                                                 |  metrics-team
     Type:  task                                 |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:
Component:  Metrics/Analysis                     |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  metrics-team-roadmap-2020Q1, sbws-   |  Actual Points:
  roadmap                                        |
Parent ID:  #33121                               |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by karsten):

 * status:  needs_revision => needs_review


Comment:

 Replying to [comment:13 mikeperry]:
 > Hrmm. The consensus graphs now all look good, but the votes are a real
 mystery. It almost looks like only 25% of relays are being measured in
 these votes?
 >
 > Do 75% of relays in the network really have a 1.0 value for 1000 *
 measured / min_rate_observed (ie measured = min_rate_observed/1000)?
 >
 > Or are the votes scales differently, and we're just clipping because
 upper end of the range is much greater than 1.0 for votes?

 The issue was that I used the `Bandwidth` value from both consensuses and
 votes, where I should have used the `Measured` value from votes. That also
 explains why the graphs were the same for all authorities. Fixed
 [https://trac.torproject.org/projects/tor/attachment/ticket/33076/cdf-
 relay-utilization-and-stream-capacity-2020-02-04.pdf here].

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33076#comment:16>
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