On Fri, May 20, 2011 at 5:22 PM, Nick Feamster wrote: > We actually have a test exactly like this in bismark active. I'll give it > a try. > > Remember: people have data caps here. Another complication. :-) > Well, yea, but I wanted a good number to bake into the build which I'm hovering over the build button for... > > Two questions: > 1. What do you want lab.projectbismark.net pointing to? I'll update the > dreaded godaddy until DNS lands. > A problem is that the routers register themselves in DNS (or will), and we need bind9 for that. I hope to have real dns after meeting with netops monday. 2. How do you run the babel multihop stuff? Can I run it in this build? > I'm in a fairly big house with *zero* wireless connectivity downstairs and > would like to try it out. > I would like Host <----wireless----> WNDR Relay <---wireless-->WNDR Relay > <---wired ---> Modem > Not sure how to set up the relays. > Yes, you can do that. I'm tickled you're willing to try it... There are a couple ways, but I'd prefer to get you through it in irc? > > Thanks, > -Nick > > On May 21, 2011, at 12:47 AM, Dave Taht wrote: > > > A much longer test would be to download this > > > > wget -4 > http://gw.lab.bufferbloat.net/capetown/capetown-wndr3700v2/OpenWrt-ImageBuilder-ar71xx-for-Linux-x86_64.tar.bz2 > > > > while pinging somewhere fairly close by. > > > > Over your wired and wireless connection(s)... > > > > Over multiple downloads, too... > > > > Sorry to make you work so hard. I am SO OVERJOYED to get some data on > this problem, however..... > > > > (yes, I'll change it to lab.bismarkproject.net as soon as DNS lands) > > > > On Fri, May 20, 2011 at 4:42 PM, Dave Taht wrote: > > > > > > On Fri, May 20, 2011 at 4:35 PM, Nick Feamster > wrote: > > > > On May 21, 2011, at 12:28 AM, Dave Taht wrote: > > > > > > > > And btw, what are the results of a speedtest from your location without > QoS on? > > > > > > > Have run it 2x now. > > > > I see about 850 kbps down and 400 kbps up. > > > > The default upload setting is abusive. > > > > Sorry. Nicaragua typically had 64k-128k up. Took my best guess. > > > > > > > With QoS on, set to up/dl values within a few percentage points of that > (and the overhead calculation disabled) > > > > > > > And with QoS set to say 840/380, with the overhead calculation disabled? > Should be about 15% below that for a long bulk transfer. Can get closer... > > > > Please note that setting these values on the basis of one datapoint in a > majorish city will result in bad values deeper in the country.... > > > > Helps to also ping somewhere at the same time of the test to see your > latencies start to go to heck as you get closer to the "edge". You'll see it > start to jitter... then go wildly late... and at extreme values, tcp/ip will > start to malfunction as per the bufferbloat diagrams... > > > > I'd LOVE for a few tcpdumps of stuff like this, from where you are..... > > > > > I can bake a better default into the next build, but I was figuring > you'd be lucky to be gettting 1000 down.... > > > > > > I want to note that according to your previous study, the first 30 > seconds of data need to be discarded in order for a speedtest to be valid, > and speedtest.net doesn't do that... > > > > Yep yep... though I don't think PowerBoost is enabled over here. > Although, we'll find out. :-) > > > > -Nick > > > > > > > > -- > > Dave Täht > > SKYPE: davetaht > > US Tel: 1-239-829-5608 > > http://the-edge.blogspot.com > > > > > > > > -- > > Dave Täht > > SKYPE: davetaht > > US Tel: 1-239-829-5608 > > http://the-edge.blogspot.com > > -- Dave Täht SKYPE: davetaht US Tel: 1-239-829-5608 http://the-edge.blogspot.com