[tor-relays] RPi Relay Maximum Speed

[Markus Koch]

Everyone should have full duplex by now.

So he has 200 mbit on a fast ethernet port.

Sent from my iPad

> On 12 Oct 2016, at 14:20, Tristan <supersluether at gmail.com> wrote:
> 
> Remember, a relay has to download and upload as well, so your 100Mbps link would really only be able to _relay_ at 50Mbps anyway.
> 
> 
>> On Oct 12, 2016 4:17 AM, "Farid Joubbi" <joubbi at kth.se> wrote:
>> The hardware in your raspberry is way too weak to be able to push 100 Mbit/s.
>> My guess is that Atlas will show somewhere just below 1 MByte for your relay.
>> 
>> I have tried to find cost effective hardware for a relay that is able to push around 100 Mbit/s. All the options I have looked at turned out to be a bit too expensive for my taste (and wallet). Either the initial cost or the energy usage is too high for such hardware for my purposes.
>> 
>> From: tor-relays <tor-relays-bounces at lists.torproject.org> on behalf of Volker Mink <volker.mink at gmx.de>
>> Sent: 12 October 2016 09:09
>> To: tor-relays at lists.torproject.org
>> Subject: Re: [tor-relays] RPi Relay Maximum Speed
>>  
>> So the best would be to use two raspis or your old gaming-workstation - depends on the costs for energy
>>  
>> Gesendet: Mittwoch, 12. Oktober 2016 um 07:55 Uhr
>> Von: "Roman Mamedov" <rm at romanrm.net>
>> An: Manny <felich at posteo.de>
>> Cc: "Tor relays" <tor-relays at lists.torproject.org>
>> Betreff: Re: [tor-relays] RPi Relay Maximum Speed
>> On Wed, 12 Oct 2016 07:18:56 +0200
>> Manny <felich at posteo.de> wrote:
>> 
>> > I have a 1gbit symmetric connection at home and would like to donate
>> > 100mbit with my raspberry pi 3 model b. Since it has a 100mbit Network
>> > Interface, I'm limited to that anyways.
>> >
>> > What Settings do I Need in my torcc to get the Maximum Speed? At the
>> > Moment I entered 12 Mbytes - which Shows up at 96 mb/s in Arm - is that
>> > correct and my understanding of things is just the opposite?
>> > Max Speed, I think, should be 12.7mb/s for a 100mbit Connection?
>> 
>> mb is not a thing that exists;
>> Mb is megabits: https://en.wikipedia.org/wiki/Megabit
>> MB is megabytes: https://en.wikipedia.org/wiki/Megabyte
>> 
>> What you entered in torrc is currently correct. But since your board has a 100
>> Mbit interface anyway, it would be better if you just omit the bandwidth limit
>> line entirely.
>> 
>> Also, actually hit anything remotely close to 100 Mbit, you'll absolutely have
>> to run two instances of Tor. The Raspberry Pi 3 has 4 CPU cores, but each core
>> on its own is not very fast. One copy of Tor only uses about 1 to 1.3 cores,
>> so to fully utilize your hardware you need more than one. Ideally you'd set up
>> four, but the Tor network will only accept two running from the same IPv4
>> address. It appears that these days there's a built-in script for that, see
>> "man tor-instance-create".
>> 
>> --
>> With respect,
>> Roman
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