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GitLab is used only for code review, issue tracking and project management. Canonical locations for source code are still https://gitweb.torproject.org/ https://git.torproject.org/ and git-rw.torproject.org.

  • Legacy
  • TracTrac
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  • #21994

Closed (moved)
Open
Opened Apr 19, 2017 by teor@teor

Consensus Health: what is the distribution of a bandwidth authority's measurements?

Once we know how many relays a bandwidth authority controls (#21992 (moved)), we might want to know how much it can change their figures, or how their measurements are distributed.

I'm not sure if we would use this, but I am writing it down so others can decide if they want it, and which option they want.

Quartile Option

This option doesn't tell us the exact range for each relay, but it's easy to calculate and understand.

For each bandwidth authority, and for the measured bandwidth medians:

  • the quartiles of its bandwidth measurements

This could look like: https://consensus-health.torproject.org/#downloadstats

Range Option

This option is more specific, but might be harder to understand and use.

For each bandwidth authority:

  • the median of the measurements it controls (the relays for which it is the median)
  • the median of the next highest measurement where it is the next highest measurement
  • the median of the next lowest measurement where it is the next lowest measurement

We should probably use medians for the average, because we really don't care about extremes.

Maybe this could look something like:

Bandwidth Authority Variance | | lower | median | higher | |----------|-------|--------|--------| | longclaw | 27887 | 58578 | 89090 | | gabelmoo | 34585 | 69344 | 84323 |

Or maybe it would be better to express them as percentages of the median.

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Reference: legacy/trac#21994