Netanalyzer's metrics are wrong when used with a fair queuing or codel based system. They use a single udp flood to measure the "queue" when in the "fq" portion of fq_codel there are 1024 by default, and when codel kicks in, queue depth is reduced eventually to a level that tcp would expect, but has no effect on a single udp flood.
Use a ping vs a big upload as your test, or the rrul test, after setting your up/download appropriately. On Sat, Jan 5, 2013 at 1:37 PM, William Katsak <[email protected]> wrote: > Hello, > > I am experimenting with using Cero/Sugarland on a PPPoE connection, and can't > seem to find a config of simple_qos that works well. > > The service is DSL, PPPoE, 3M/768K. Without any qos, the router works well, > as expected. When I try to use simple_qos, the clients have trouble loading > websites (hangs while loading, etc). > > Netlyzer shows upstream buffering of about 650ms, consistently. I have tried > various higher and lower values for UPLINK and DOWNLINK, but nothing seems to > help. Anyway, I think 15-20% below link should be fine. > > Here is my config: > UPLINK=550 > DOWNLINK=1900 > DEV=ifb0 > IFACE=ge00 > DEPTH=42 > TC=/usr/sbin/tc > FLOWS=8000 > PERTURB="perturb 0" # Permutation is costly, disable > FLOWS=16000 # > BQL_MAX=3000 # it is important to factor this into the RED calc > > CEIL=$UPLINK > MTU=1492 > ADSLL="" > PPOE=yes > > Couple of things I am unsure about: > 1) Should the IFACE be ge00 or pppoe-ge00? > 2) Should the MTU be the pppoe mtu (1492) or the ethernet (1500) > > One last thing: I have the lan split up into VLAN interfaces se00.1, > se00.100, and se00.200. Everything otherwise works as expected with these, > but could the naming be breaking something? > > If anyone is willing to share a working configuration it would be much > appreciated. > > Thanks, > Bill Katsak > > _______________________________________________ > Cerowrt-devel mailing list > [email protected] > https://lists.bufferbloat.net/listinfo/cerowrt-devel -- Dave Täht Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html _______________________________________________ Cerowrt-devel mailing list [email protected] https://lists.bufferbloat.net/listinfo/cerowrt-devel
