Well, if your provided rate is different from line rate on the up or down, you need to apply a rate shaper to the interface first, not just fq_codel alone. You have to make your device be the bottleneck in order to have control of the queue.
openwrt has the qos-scripts and luci-app-qos packages OR cerowrt has the sqm-scripts and luci-app-sqm packages (and these install on top of regular openwrt) http://www.bufferbloat.net/projects/cerowrt/wiki/Setting_up_SQM_for_CeroWrt_310 A simple example of how htb is used in the above http://wiki.gentoo.org/wiki/Traffic_shaping On Tue, Jun 24, 2014 at 6:22 AM, Brian J. Murrell <[email protected]> wrote: > Hi all, > > I've upgraded my router to OpenWRT Breaker Barrier r41163 which has > kernel 3.10.36 in it. I was pleased to see that codel appears (to my > very newbie eyes) to be default on what should be the > "fast->slow" (where bufferbloat happens) interfaces: > > qdisc fq_codel 0: dev eth0 root refcnt 2 limit 1024p flows 1024 quantum 300 > target 5.0ms interval 100.0ms ecn > qdisc mq 0: dev wlan1 root > qdisc mq 0: dev wlan0 root > qdisc fq_codel 0: dev pppoe-wan1 root refcnt 2 limit 1024p flows 1024 quantum > 300 target 5.0ms interval 100.0ms ecn > qdisc fq_codel 0: dev tun0 root refcnt 2 limit 1024p flows 1024 quantum 300 > target 5.0ms interval 100.0ms ecn > > So first thing to notice is that this router has two WAN interfaces but > only one of them (pppoe-wan1) has had codel applied. The other WAN > interface (eth0.2) is not even listed. > > So off I go to experiment with the WAN interface that does have codel > applied... > > So I do the saturate-and-ping test through pppoe-wan1 and ping times go > from ~12ms to ~1200ms, while saturating the upstream so clearly codel is > not working there. > > What am I doing wrong? > > Cheers, > b. > > > > _______________________________________________ > Codel mailing list > [email protected] > https://lists.bufferbloat.net/listinfo/codel > -- Dave Täht NSFW: https://w2.eff.org/Censorship/Internet_censorship_bills/russell_0296_indecent.article _______________________________________________ Codel mailing list [email protected] https://lists.bufferbloat.net/listinfo/codel
