I guessed input into Dangerous options was required, but was unsure of the syntax. Quite how /etc/config/sqm is read is another matter to be addressed over ssh. I shall paste all in one email response, for you to rearrange at the other end. Both use simple.qos. With pie: tc -d qdisc qdisc fq_codel a: dev se00 root refcnt 2 limit 1000p flows 1024 quantum 1000 target 5.0ms interval 100.0ms ecn qdisc htb 1: dev ge00 root refcnt 2 r2q 10 default 12 direct_packets_stat 6 ver 3.17 linklayer atm overhead 18 mtu 2047 tsize 128 qdisc pie 110: dev ge00 parent 1:11 limit 1000p target 25000 tupdate 30000 alpha 2 beta 20 qdisc pie 120: dev ge00 parent 1:12 limit 1000p target 25000 tupdate 30000 alpha 2 beta 20 qdisc pie 130: dev ge00 parent 1:13 limit 1000p target 25000 tupdate 30000 alpha 2 beta 20 qdisc ingress ffff: dev ge00 parent ffff:fff1 ---------------- qdisc htb 1: dev ifb0 root refcnt 2 r2q 10 default 12 direct_packets_stat 0 ver 3.17 linklayer atm overhead 18 mtu 2047 tsize 128 qdisc pie 110: dev ifb0 parent 1:11 limit 1000p target 20000 tupdate 30000 alpha 2 beta 20 ecn qdisc pie 120: dev ifb0 parent 1:12 limit 1000p target 20000 tupdate 30000 alpha 2 beta 20 ecn qdisc pie 130: dev ifb0 parent 1:13 limit 1000p target 20000 tupdate 30000 alpha 2 beta 20 ecn qdisc mq 1: dev sw10 root qdisc fq_codel 10: dev sw10 parent 1:1 limit 800p flows 1024 quantum 500 target 10.0ms interval 100.0ms qdisc fq_codel 20: dev sw10 parent 1:2 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 30: dev sw10 parent 1:3 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 40: dev sw10 parent 1:4 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms qdisc mq 1: dev sw00 root qdisc fq_codel 10: dev sw00 parent 1:1 limit 800p flows 1024 quantum 500 target 10.0ms interval 100.0ms qdisc fq_codel 20: dev sw00 parent 1:2 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 30: dev sw00 parent 1:3 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 40: dev sw00 parent 1:4 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms qdisc mq 1: dev gw00 root qdisc fq_codel 10: dev gw00 parent 1:1 limit 800p flows 1024 quantum 500 target 10.0ms interval 100.0ms qdisc fq_codel 20: dev gw00 parent 1:2 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 30: dev gw00 parent 1:3 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 40: dev gw00 parent 1:4 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms qdisc mq 1: dev gw10 root qdisc fq_codel 10: dev gw10 parent 1:1 limit 800p flows 1024 quantum 500 target 10.0ms interval 100.0ms qdisc fq_codel 20: dev gw10 parent 1:2 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 30: dev gw10 parent 1:3 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 40: dev gw10 parent 1:4 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms qdisc fq_codel a: dev pppoe-ge00 root refcnt 2 limit 1000p flows 1024 quantum 1000 target 5.0ms interval 100.0ms ecn tc class show dev ge00 class htb 1:11 parent 1:1 leaf 110: prio 1 rate 128000bit ceil 316000bit burst 1600b cburst 1599b class htb 1:1 root rate 950000bit ceil 950000bit burst 1599b cburst 1599b class htb 1:10 parent 1:1 prio 0 rate 950000bit ceil 950000bit burst 1599b cburst 1599b class htb 1:13 parent 1:1 leaf 130: prio 3 rate 158000bit ceil 934000bit burst 1599b cburst 1599b class htb 1:12 parent 1:1 leaf 120: prio 2 rate 158000bit ceil 934000bit burst 1599b cburst 1599b with fq_codel, and 25ms target: tc -d qdisc qdisc fq_codel a: dev se00 root refcnt 2 limit 1000p flows 1024 quantum 1000 target 5.0ms interval 100.0ms ecn qdisc htb 1: dev ge00 root refcnt 2 r2q 10 default 12 direct_packets_stat 9 ver 3.17 linklayer atm overhead 18 mtu 2047 tsize 128 qdisc fq_codel 110: dev ge00 parent 1:11 limit 1000p flows 1024 quantum 300 target 25.0ms interval 100.0ms qdisc fq_codel 120: dev ge00 parent 1:12 limit 1000p flows 1024 quantum 300 target 25.0ms interval 100.0ms qdisc fq_codel 130: dev ge00 parent 1:13 limit 1000p flows 1024 quantum 300 target 25.0ms interval 100.0ms qdisc ingress ffff: dev ge00 parent ffff:fff1 ---------------- qdisc htb 1: dev ifb0 root refcnt 2 r2q 10 default 12 direct_packets_stat 0 ver 3.17 linklayer atm overhead 18 mtu 2047 tsize 128 qdisc fq_codel 110: dev ifb0 parent 1:11 limit 1000p flows 1024 quantum 500 target 5.0ms interval 100.0ms ecn qdisc fq_codel 120: dev ifb0 parent 1:12 limit 1000p flows 1024 quantum 1500 target 5.0ms interval 100.0ms ecn qdisc fq_codel 130: dev ifb0 parent 1:13 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc mq 1: dev sw00 root qdisc fq_codel 10: dev sw00 parent 1:1 limit 800p flows 1024 quantum 500 target 10.0ms interval 100.0ms qdisc fq_codel 20: dev sw00 parent 1:2 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 30: dev sw00 parent 1:3 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 40: dev sw00 parent 1:4 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms qdisc mq 1: dev sw10 root qdisc fq_codel 10: dev sw10 parent 1:1 limit 800p flows 1024 quantum 500 target 10.0ms interval 100.0ms qdisc fq_codel 20: dev sw10 parent 1:2 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 30: dev sw10 parent 1:3 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 40: dev sw10 parent 1:4 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms qdisc mq 1: dev gw00 root qdisc fq_codel 10: dev gw00 parent 1:1 limit 800p flows 1024 quantum 500 target 10.0ms interval 100.0ms qdisc fq_codel 20: dev gw00 parent 1:2 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 30: dev gw00 parent 1:3 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 40: dev gw00 parent 1:4 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms qdisc mq 1: dev gw10 root qdisc fq_codel 10: dev gw10 parent 1:1 limit 800p flows 1024 quantum 500 target 10.0ms interval 100.0ms qdisc fq_codel 20: dev gw10 parent 1:2 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 30: dev gw10 parent 1:3 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 40: dev gw10 parent 1:4 limit 1000p flows 1024 quantum 300 target 5.0ms interval 100.0ms qdisc fq_codel a: dev pppoe-ge00 root refcnt 2 limit 1000p flows 1024 quantum 1000 target 5.0ms interval 100.0ms ecn tc class show dev ge00 class htb 1:11 parent 1:1 leaf 110: prio 1 rate 128000bit ceil 316000bit burst 1600b cburst 1599b class htb 1:1 root rate 950000bit ceil 950000bit burst 1599b cburst 1599b class htb 1:10 parent 1:1 prio 0 rate 950000bit ceil 950000bit burst 1599b cburst 1599b class htb 1:13 parent 1:1 leaf 130: prio 3 rate 158000bit ceil 934000bit burst 1599b cburst 1599b class htb 1:12 parent 1:1 leaf 120: prio 2 rate 158000bit ceil 934000bit burst 1599b cburst 1599b class fq_codel 110:2c9 parent 110: class fq_codel 120:1a5 parent 120: class fq_codel 120:31f parent 120: On 27/12/13 19:49, Dave Taht wrote: > > > Pie has a default latency target of 20ms, fq codel 5ms. (But the fq > code target matters less as the target only applies to queue building > flows) > > A packet takes 13ms to transit the device at 1mbit. > > There is a change to fq codel in this release that should make > fiddling with target a low speeds less needed. (But might have other > problems) Still a comparison at roughly the same target vs a vs pie in > your environment would be very interesting. > > I suggested 25ms as a test (as pie never makes 20ms anyway) > > I came close to inserting a simple formula to start increasing the > target below 4mbit in this release. > > On Dec 27, 2013 11:25 AM, "Sebastian Moeller" > wrote: > > > > Hi Fred, > > > > you could try to put "target 25ms" without the quotes into the > advanced egress options field in the "Queue Discipline" tab, that is > exposed after checking "Show Dangerous Configuration". I would love to > hear whether that worked or not (I am not able to test anything > myself). Maybe posting the output of "tc -d qdisc" and "tc class show > dev ge00" would help. Good luck… > > > > > > Best Regards > > Sebastian > > > > > > On Dec 27, 2013, at 20:20 , Fred Stratton wrote: > > > > > I have been using pie for approximately 3 weeks. > > > > > > You are correct, in that the outbound speed is about 800 - 900 kb/s. > > > > > > I shall try what you suggest, but do not know how to express the > target of 25 ms as a configuration option. > > > > > > > > > On 27/12/13 19:15, Dave Taht wrote: > > >> Dear fred: are you sticking with pie? I was going to suggest you > try fq codel with a target 25ms on your outbound. (You are at 800kbit > or so as best I recall?) > > >> > > >> On Dec 27, 2013 11:10 AM, "Fred Stratton" > wrote: > > >> I upgraded to 3.10.24-8 on 2013-12-23. > > >> > > >> I modified /etc/fixdaemons, adding > > >> /etc/init.d/sqm restart > > >> > > >> input the appropriate sqm settings, transcribed from aqm > > >> > > >> rebooted > > >> > > >> and the build works very well. For ADSL2+ here, it is the best so > far. > > >> > > >> > > >> On 27/12/13 18:55, Dave Taht wrote: > > >>> A race condition appears to have crept in... > > >>> > > >>> ---------- Forwarded message ---------- > > >>> From: "Dave Taht" > > > >>> Date: Dec 27, 2013 10:47 AM > > >>> Subject: Re: [Cerowrt-devel] CeroWrt 3.10.24-8 badly bloated? > > >>> To: "Richard E. Brown" > > > >>> Cc: > > >>> > > >>> Probably didn't start sqm properly > > >>> > > >>> Restart it by hand via /etc/init.d/sqm restart > > >>> > > >>> tc -s qdisc show dev ge00 > > >>> > > >>> Should show htb and fq codel. > > >>> > > >>> On Dec 27, 2013 10:36 AM, "Rich Brown" > wrote: > > >>> So I screwed up my courage and replaced my 3.10.18-? firmware in > my primary router with 3.10.24-8. That version had worked well as a > secondary, so I figured, What the heck… Let’s give it try. > > >>> > > >>> The result was not pretty. I set my link speeds in the SQM page, > chose the defaults for the Queue Discipline tab, and link layer to ATM > with no additional overhead for my DSL link. > > >>> > > >>> Ping times to google are normally ~51-54 msec. But when I fired > up speedtest.net , they jumped to 1500-2500 > msec. Is there something I should look at before reverting? Thanks. > > >>> > > >>> Rich > > >>> _______________________________________________ > > >>> Cerowrt-devel mailing list > > >>> Cerowrt-devel@lists.bufferbloat.net > > > >>> https://lists.bufferbloat.net/listinfo/cerowrt-devel > > >>> > > >>> > > >>> _______________________________________________ > > >>> Cerowrt-devel mailing list > > >>> > > >>> Cerowrt-devel@lists.bufferbloat.net > > > >>> https://lists.bufferbloat.net/listinfo/cerowrt-devel > > >> > > > > > > _______________________________________________ > > > Cerowrt-devel mailing list > > > Cerowrt-devel@lists.bufferbloat.net > > > > https://lists.bufferbloat.net/listinfo/cerowrt-devel > > >