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Re: [tor-relays] Network Bandwidth Fine Tuning



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@xxxxxx> 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@rocket:~$ vmstat
procs -----------memory---------- ---swap-- -----io---- -system--
------cpu-----
Âr b Âswpd Âfree Âbuff cache Âsi Âso  bi  bo Âin Âcs us sy
id wa st
Â0Â 0 185600Â 93328Â Â4112Â 73220Â Â 0Â Â 1Â Â 11Â Â 12Â Â61Â Â21Â 5Â 4
91Â 0Â 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@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@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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