On 12/4/18 4:48 PM, marziyeh latifi wrote:
Hello,I have two questions about tor's relay: 1-How can I calculate the throughput of each circuit in a relay?I mean that how can I calculate the number of cells that are sent from circuit queue to the output buffer per second in each relay?
You might be able to with the CIRC_BW control command. https://gitweb.torproject.org/torspec.git/tree/control-spec.txt#n2988 (I'm not sure if this is a client-only command or if relays can use it for circuits that go through them)
If not, I don't think you can without modifying Tor's source code.
2-What is the difference between circuit and channel in relays? I'm looking forward to hearing from you! thanks!
Channels are a thin wrapper around connections (which themselves are a nice wrapper around TCP sockets) in Tor's source code.
There can be many circuits on a channel.
Matt
PS: this question makes more sense for tor-dev@