Re: [tor-relays] increase txqueuelen: reasonable or not?

-- Moritz Bartl https://www.torservers.net/ Am 17.08.2011 17:31, schrieb Steve Snyder: > The config page at torservers.net advises increasing the TX Queue Length from the default 1,000 to 20,000. For a differing opinion see the assertion that this increases latencies and hampers network congestion recovery ("bufferbloat"): > > http://www.cyberciti.biz/faq/gentoo-centos-rhel-debian-fedora-increasing-txq... > > I'm running an exit node on a 100Mbps network (multi-core CPU on RHEL5), and typically have 600 - 800 connections at any given time. TorStatus usually reports my throughput at 700KB to 800KB per second. > > I suspect that the 20,000 recommendation pertains to Gbit Ethernet. Still, though, is the default of 1,000 adequate for my Tor traffic? > > More generally, I haven't tweaked my networking (system network buffer sizes, etc.) because it is unclear to me what recommendations are appropriate for exit nodes running contemporary versions (v0.2.2.30+) of Tor. Reliable benchmarking can't be done because the system load varies with traffic at any given time. Is there a way to prove empirically that this or that adjustment to the system configuration really has an effect on the performance of a Tor relay node? > > Thanks. > > > _______________________________________________ > tor-relays mailing list > tor-relays@lists.torproject.org > https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays >