The USB connector on the power cord is a bit flaky. Babylonian had not received any power for almost three days without me noticing.
Does anyone have an explanation why it pushes more traffic now, directly after being offline for three days? I would have believed that it would receive less traffic now since it has a track record of being less stable. According to Atlas it is pushing about twice as much now after being out for a while.
https://atlas.torproject.org/#details/875F74A3DC14737BECA06F8B500022154D1A29...
-- Farid
________________________________________ From: Aeris aeris+tor@imirhil.fr Sent: 03 September 2016 18:06 To: Roman Mamedov Cc: Farid Joubbi; tor-relays@lists.torproject.org Subject: Re: [tor-relays] Why can't I see more traffic? (is my banana too weak?)
According to 'openssl speed aes-128-cbc' the Allwinner A20 CPU in Banana Pro is capable of about 25 MBytes/sec in AES performance. While that won't translate 1:1 into Tor performance, as Farid noted in his case the CPU isn't being a bottleneck, with only 10-20% CPU load observed.
I don’t understand very well this fact, but CPU can be the bottleneck even if load or CPU usage not at full capacity.
One of my Tor guard relay have the same CPU behaviour (see screenshot enclosed). 2 instances at 50-60% CPU usage (as reported by htop), load around 0.70-0.80 (4 cores), RAM at 20% (400MB/2GB) but bandwidth not saturated (20Mbps only on a 200Mbps line). Perhaps because of the multiple changes of context (AES crypto, Tor software logic, network IO…) and so a lot of wait/IRQ (as visible on the screen) and not a fully used CPU.
Also seems unclear why it didn't get the guard flag for so long, does your public IP address change from time to time? Or do you turn the relay off and on for whatever reason.
Perhaps a low bandwidth ? Babylonian seems to be on the lower part of guard relay (2146/2313), possible it hadn’t enough bandwith before end of august to get guard flags ? Only the 25% fastest relays can get the guard flag. Today it’s around 2.5 MBps advertised / 1MBps measured. Babylonian is just at the limit (2.45MBps advertised, 600kBps measured).
<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://caf%C3%A9-vie-priv%C3%A9e.fr/