[tor-relays] What kind of hardware do I need for my relay

[Olaf Grimm]

Ok, N3050 cpu count was my mistake. It are 2 cores. It is a hand-size
mini pc (ZOTAC 323 nano). It act as a middle node.


Now checked: The cpu load is ~15% with 1184 connected relays! (home
connection with 10MBit/s; actual modem usage: 5MBit/s upload average,
8MBit/s peak. Downstream equal upstream.

(Sorry for wrong values before with an upload of 1MBit/s. I had
forgotten my line upgrade some months ago.)


Relay fingerprint:    E9A31E7EFF7A062AA67DA601CC70605AACF9F385
Relay external address:    91.48.47.161
Total traffic (read/written):    260.18 GB/263.10 GB
Connected relays    (1184)


ATLAS says 200 kByte/s (graph) >> ~2MBit/s   Where is the mistake? I
expect a lot more. The wrong value is stable over weeks.


One of my external VPS server:

Incoming / outgoing ~30MBit/s with a 100MBit/s connection

ATLAS says 4MByte/s (graph)

ARM display 40% cpu load with 5% for ARM itself.

RAM 4GB, 1 virtual core, XEON, ?? GHz


My confusion: ATLAS display MByte/s, not MBit/s. Every time I traped in
this. It is a technical agreement, that serial lines are rated in Bit/s,
not Bytes/s. It would be nice to change this in ATLAS.


I hope now my values are clearer than before.


Olaf





On 21.03.2017 06:07, Roman Mamedov wrote:
> On Mon, 20 Mar 2017 21:03:57 +0000
> Farid Joubbi <joubbi at kth.se> wrote:
>
>> Intel NUC5CPYH Celeron N3050 1,6 GHz to 2,16 burst -> 5 Mbit/s max (OpenBSD)
> This sounds wrong. VIA Nano 1.6GHz, a single core laptop CPU from 2011, can
> sustain about 40+40 Mbit (WITHOUT utilizing the crypto acceleration).
>
> The Celeron N3050 has two cores and supports AES-NI, and if OpenBSD seriously
> doesn't (which I doubt), then swap out OpenBSD.
>
> With two cores you could also run 2 instances of Tor for more efficient CPU
> use. I would expect both cores stay at sub-50% CPU use while the entire thing
> is capping out into the full 100+100 Mbit.
>
> That said, when did you measure the speed, and are you aware of
> https://blog.torproject.org/blog/lifecycle-of-a-new-relay ?
>
> Another possibility, maybe your ISP only provides "up to 100 Mbit" and is
> shaping certain types, patterns or amounts of traffic use.
>