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

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Jan 29 14:01:17 UTC 2020


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

Comment (by mikeperry):

 Replying to [comment:8 karsten]:
 > There's one line per consensus entry, which is where we get the
 following columns from:
 `fingerprint,validafter,hasexitflag,hasguardflag,measured`. The `read` and
 `write` columns come from bandwidth histories contained in extra-info
 descriptors. `rate,burst,observed` come from the server descriptor
 referenced by the consensus entry.
 >
 > For CDF-Relay-Utilization I used (pseudo code):
 >
 > {{{
 > read_write := (read + written) / 2;
 > advertised := min(rate, burst, observed)
 > plot -> advertised / read_write
 > }}}

 Let's do:
 {{{
  read_write := (read + written) / 2;
  peak := max(rate, burst, observed)
  plot -> read_write / peak
 }}}

 Ideally, peak would be that peak-in-30-days thing we grinded out in
 Whistler, but for this we actually wanna see what the instantaneous change
 to peak that the experiment caused did to results.

 The of plot should still be between 0 and 1.0. Any relay that has a value
 over 1.0 would be very interesting to look at.

 > For CDF-Relay-Stream-Capacity I used:
 >
 > {{{
 > plot -> measured / observed
 > }}}

 Yes, I think this is just off by a factor of 1000 then. It should be:

 {{{
 plot -> 1000*measured / observed
 }}}

 And then the CDFs will be centered on 1.0.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33076#comment:9>
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