Am 2014-03-17 07:54, schrieb Roger Dingledine: > On Mon, Mar 17, 2014 at 07:45:15AM +0100, Martin Kepplinger wrote: >> So I'm giving a little talk about Tor, mainly to motivate and remind >> people to run a relay. Roger gave a talk a few years back, about >> congestion control, the problem with bulk-vs-web traffic and the "1 sec >> token bucket" problems. Is there a short answer on whats the status on >> these topics? > > Some of them are resolved, and some of them remain as theoretical > issues. It turns out that the distance between the green line and > the purple line in this graph: > https://metrics.torproject.org/network.html?graph=bandwidth&start=2010-12-17&end=2014-03-17#bandwidth > is way more influential on performance than we had realized. That is, > we can mask many of the underlying technical questions by having enough > capacity in the network.
So you want the distance to be smaller. Why actually? Assuming speed-tests (from authorities) are done "right", isn't that entirely a problem of the protocol? Basically it shouldn't matter at all how weak a connected relay is, no matter how much the admin advertises. She would _like_ to offer this much bandwith and that's nice of her, but oh well, bandwith authorities give her how much she can actually offer. So, why does that distance matter? > > But it remains the case that too much bulk traffic can really hose the > network, so it's still the case that people shouldn't do that. > > I haven't gotten around to organizing everything into a "Why else is > Tor slow" document, to go with the first one: > https://blog.torproject.org/blog/why-tor-is-slow > But you can read some notes here: > https://trac.torproject.org/projects/tor/wiki/org/roadmaps/Tor/Performance > http://freehaven.net/~arma/tor-performance-outline.txt > > In that last URL I tag five promising directions with '*'. With some work, > you can find papers corresponding to most of them at > http://freehaven.net/anonbib/ thanks for the update. > >> Btw. Would anyone send some stickers to give away to austria? The talk >> is in the beginning of May. > > Sounds like a great cause. You should mail Kelley and see if she can > help you. > > Thanks, > --Roger > -- tor-talk mailing list - [email protected] To unsubscribe or change other settings go to https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk
