[tor-relays] Drop in relay count

[nusenu]

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> Looking at the graphs showing the number of relays in the network
> it seems like we've lost about 500 (-7%) relays since the beginning
> of this year.
> 
> https://metrics.torproject.org/networksize.html?graph=networksize&start=2015-01-01&end=2015-05-03
>
> 
https://metrics.torproject.org/networksize.html?graph=networksize&start=2012-01-01&end=2015-05-03
> 
> Looking at the graphs showing the total relay bandwidth of the
> network it seems like the advertised bandwidth has increased with
> about 25 Mbps (+23%).

I doubt that 25 Mpbs is 23% of the tor network capacity, I guess it
should say GBit/s.


> https://metrics.torproject.org/bandwidth.html?graph=bandwidth&start=2015-01-01&end=2015-05-03
>
> 
https://metrics.torproject.org/bandwidth.html?graph=bandwidth&start=2012-01-01&end=2015-05-03
> 
> Seems a bit contradictory at first sight. A guess would be that a
> lower number of fast relays have replaced a higher number of slow
> ones but I haven't looked into it more.
> 
> Anyone who's looked into this? And can back up their theory with
> some numbers.

Unfortunately I've got no historic onionoo details data that goes back
to 2014 to compare with current data, but if anyone has, feel free to
upload it somewhere.

You probably also know about the 0.2.3.x relays:
https://metrics.torproject.org/versions.html
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