On ons, 2016-09-21 at 17:29 +0200, Aeris wrote:
> >
> > 17 MBytes/s in each direction.
>
> From Atlas graph, your node is currently growing up, so wait few
> weeks more toÂ
> have the real bandwidth consumption, but don’t expect huge change.
It looks as if it stabilized a while ago, and I see more fluctuations
in between hours of the day, than I see between days.
>
> 17M*B*ps is 140M*b*ps and you already have a good relay :)
> This is around the speed expected for standard CPU (150 to 300Mbps
> per TorÂ
> instance, best CPU available can "only" drain around 500Mbps).
For a relay, yes. However, on an Exit node, the traffic patterns are
quite different than a pure relay, that's why I'm asking here for that.
Exit traffic uses a metric ton more, short-lived connections to
different parts of the world, and there's a lot of things there that I
could probably tune better. Â ( Normal relays seldom have a trouble
filling the conntrac tables, while exits do. )
>
> And your CPU have all chance to be the bottleneck at this speed. Tor
> is notÂ
> multi-core at the moment and so you can’t be able to fully use your
> CPUÂ
> capacity. For example, if you have a 4-core CPU, don’t expect to have
> moreÂ
> than 0.25-0.3 load with only Tor (1 core fully used).
Load is only about IO, processes waiting for something. That's why I
quoted CPU usage, and the cpu usage per cpu isn't quite getting there
for me. :-(
>
> You have to start another Tor instance to use a little more your CPU
> (1 otherÂ
> core) and so to drain additionnal 150-300Mbps.
Scaling up on more hardware is always an option, but I really want to
push the limit of the exit node, as the others won't be exits (Local
network design, really) , and exit traffic is always more
interesting.
//D.S.