[tor-relays] Multi-core Support

[teor]

> Date: Tue, 2 Jun 2015 20:31:56 +0500
> From: Roman Mamedov <rm at romanrm.net>
> 
> On Tue, 02 Jun 2015 11:13:13 -0400
> 12xBTM <12xbtm at gmail.com> wrote:
> 
>> Improving multi-core support can allow users to saturate high bandwidth
>> connections with cheaper processors, less setup, and just more efficient
>> deployment of high-capacity nodes in general. Improving multi-core
>> support should be a major priority.
> 
> Sure but I doubt anyone contests that it's better to have multicore support,
> than to not have it. However that work doesn't get automatically done.
> 
> One quick and simple stop-gap alternative that I suggested some time ago would
> be to stop ignoring more than two relays per IP address.
> 
> With the IPv4 shortage and abundance of multi-core CPUs, raising that limit to
> let's say 4, would at least allow many people to run a Tor process per core on
> the same single IPv4 that they have (utilizing up to four cores, not just two).

This was suggested in
https://trac.torproject.org/projects/tor/ticket/13414

But the concern was that any increase to 2 relays per IP would make it much easier for sybil attacks. Perhaps we could try an increase to 3 or 4 per IP?

teor

teor2345 at gmail dot com
pgp 0xABFED1AC
https://gist.github.com/teor2345/d033b8ce0a99adbc89c5

teor at blah dot im
OTR D5BE4EC2 255D7585 F3874930 DB130265 7C9EBBC7

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 832 bytes
Desc: Message signed with OpenPGP using GPGMail
URL: <http://lists.torproject.org/pipermail/tor-relays/attachments/20150603/b03ae4f1/attachment.sig>