[tor-relays] Recommended specifications for 1Gbps exit

[Matt Joyce]

I am wondering if anyone with experience in this area could advise me
some on recommended specifications for a 1Gbps exit I think my latest
once needs a package upgrade to handle it, currently seems stuck at
around 100Mbps worth of traffic.  Currently it has access to 3 v cores
@1.33Ghz and 1GB of RAM and I think the latter might be becoming the
limit instead now I had thought it was the CPU when it had just the one
core but that alone hasn't helped.

I am not entirely sure if tor is infact using the other cores though
watching with top it is sitting at 100 or a fraction over like 104% or
so.  MaxCPU's is set in torrc to 4 as the OS sees 4 virtual cores but is
capped to 300% by the hypervisor perhaps it should be set to 3 not sure
if there is any benefit in setting to 4 I have limited experience with
virtual servers but unfortunately a fully dedicated server for tor is
financially out of my budget at the moment.

Also, just to confirm while I'm aware it's very possible that the
limitation could be bandwidth given it shares with the other VPS'es on
the host I don't believe that was the case, I pulled a backup from there
to another server of mine on a different AS and continent and it
transferred at 250Mbps while tor was running at 100Mbps the entire time,
so unless the contention is over the download which seems less likely
for a server I think we should be able to get a good 300Mbps of exit
capacity out of this possibly more.

So can anyone can advise on recommended CPU, RAM have to consider budget
but will try and meet them, also if there are any settings I should
check in torrc?

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