> Could it be that it is due to the quite slow hardware, even though I know
> that it is able to push more traffic?

Yep, surely.

You currently push 3Mbps of traffic, which is correct for this kind of hardware.
All "cheap" hardware (raspi, banana, olimex, pine…) suffer of the fact they 
don’t have crypto hardware acceleration and do software encryption. And so is 
very slow (10-100× factor) even compared to low end amd64 CPU with AES-NI 
extension.

Generally speaking, the bottleneck of a Tor relay is CPU, not bandwidth.
Even high end Intel CPU is not able to deliver more than 300Mbps (one core of 
2Ghz Xeon is ~ 100Mbits, standard CPU is ~ 300Mbps, best known Tor relay 
currently handle 500Mbps).

<3,
-- 
Aeris
Individual crypto-terrorist group self-radicalized on the digital Internet
https://imirhil.fr/

Protect your privacy, encrypt your communications
GPG : EFB74277 ECE4E222
OTR : 5769616D 2D3DAC72
https://café-vie-privée.fr/

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