[tor-relays] Re: 1gbp/s Tor Relay

[forest-relay-contact--- via tor-relays <tor-relays@xxxxxxxxxxxxxxxxxxxx>]

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Hello.

Lavender I Tor Relay wrote:
> If you don't mind my asking, why specifically in Europe?

Unfortunately, Tor's bandwidth authorities (the servers that measure the
bandwidth of relays) are heavily concentrated in Europe, so even high-
capacity relays will be falsely given a lower consensus weight. We're
talking the difference between <1 Mbps with 1% CPU usage (Malaysia) and 
~400 Mbps with 100% CPU usage (Germany), despite both being able to push
1 Gbps traffic in general. Yet the former is not bottlenecked by any
resources (it still has plenty of CPU and bandwidth to spare).

It's sad because there are too many relays concentrated in Germany and
the Netherlands, but other locations, even with spare capacity, don't get
fully utilized. The advice is always the same: run more Tor processes,
but that's not practical for many people due to the limit of 8 relays per
IP and the fact that many low-cost VPSes don't have enough RAM to run
more than a single Tor relay anyway.

Hopefully in the future, bandwidth measurements will be fixed. But until
then, they are badly broken and heavily prioritize relays in already-
saturated areas while penalizing capable and diverse relays.

If your VPS has good connectivity to the EU or eastern United States, it
will probably get good usage. That means that you need really premium
routing to get any decent bandwidth in APAC, for example.

Regards,
forest
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