[tor-relays] Network Bandwidth Fine Tuning

[Tristan]

Maybe this article from the Tor FAQ will help:
http://archives.seul.org/or/relays/Aug-2010/msg00034.html

According to the article, Tor can only get 100Mbps per CPU core, and Tor
doesn't use any more than 2 cores because it's not fully multithreaded.

You can only run 2 instances of Tor on the same IP address, which means a
maximum of 800Mbps, if you do it right.

The answer from this link is pretty straightforward on how to run multiple
instances:
https://stackoverflow.com/questions/14321214/how-to-run-multiple-tor-processes-at-once-with-different-exit-ips

Just make sure you correctly set the MyFamily option in torrc, otherwise a
client could (unlikely but possibly) use both of your instances in the same
circuit.
On Mar 2, 2016 7:56 AM, "Sebastian Niehaus" <niehaus at web.de> wrote:

> Am 29.02.2016 um 00:15 schrieb Moritz Bartl:
>
> > It can take up to roughly a month before a new relay reaches its 'final'
> > throughput levels. See
> > https://blog.torproject.org/blog/lifecycle-of-a-new-relay for details.
>
> I am surprised as well because my middle relay has quite a low traffic,
> at least not as much a I expect.
>
>
>
> https://atlas.torproject.org/#details/7A32C9519D80CA458FC8B034A28F5F6815649A98
>
> Advertised Bandwidth: 7.74 MB/s but it should do more
>
> It is quite a small box but always has free memory left:
>
> niehaus at rocket:~$ vmstat
> procs -----------memory---------- ---swap-- -----io---- -system--
> ------cpu-----
>  r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy
> id wa st
>  0  0 185600  93328   4112  73220    0    1    11    12   61   21  5  4
> 91  0  0
>
>
>
> The highes percentage of CPU use in top I have seen is about 15%, there
> is quite a lot idle time left. AES is supported in hardware, network
> speed is okay;
>
> niehaus at rocket:~$ bin/speedtest-cli
> Retrieving speedtest.net configuration...
> Retrieving speedtest.net server list...
> Testing from arsys.es (82.223.21.74)...
> Selecting best server based on latency...
> Hosted by Vodafone Spain (Madrid) [0.00 km]: 7.529 ms
> Testing download speed........................................
> Download: 385.85 Mbit/s
> Testing upload speed..................................................
> Upload: 242.09 Mbit/s
> niehaus at rocket:~$
>
> Anything I can do to donate more bandwith? Any more information you need?
>
> --
> Sebastian Niehaus
> Am Freibad West 80
> 38440 Wolfsburg
>
>
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>
>
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