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Hi Chaps,<br>
<br>
Further to Dave's recent request for 'tc -s qdisc' stats looking at
drops vs ecn marks, please could someone take a look at these and
explain to this idiot quite what is going on? This is a
particularly slow & ratty ADSL line providing my parents
internet 'service'. Before I got hold of it with OpenWrt CC trunk +
cake jammed in it, 6 seconds of bufferbloat was not uncommon. I'm
using the default sqm scripts that arrive with the 'ceropackages'
repo (used as a source of patched iproute2, cake, etc) In essence 2
questions: 1) Why no ECN marks, only drops? 2) What falls into
diffserv class 0 (alias, why has nothing used it?)<br>
<br>
Your time, patience etc is greatly appreciated.<br>
<br>
Kevin<br>
<br>
<font face="monospace">root@Router:~# tc -s qdisc show dev pppoa-wan<br>
qdisc cake 803a: root refcnt 2 bandwidth 256Kbit diffserv4 flows <br>
Sent 1928303 bytes 12121 pkt (dropped 73, overlimits 6915
requeues 0) <br>
backlog 0b 0p requeues 0 <br>
Class 0 Class 1 Class 2 Class 3 <br>
rate 256Kbit 240Kbit 192Kbit 64Kbit<br>
target 70.5ms 75.2ms 94.0ms 282.0ms<br>
interval 564.0ms 601.6ms 752.0ms 2.3s<br>
Pk delay 0us 91.4ms 17.5ms 3.2ms<br>
Av delay 0us 2.9ms 2.9ms 53us<br>
Sp delay 0us 5us 136us 7us<br>
pkts 0 11754 408 32<br>
way inds 0 0 0 0<br>
way miss 0 347 404 5<br>
way cols 0 0 0 0<br>
bytes 0 1973100 28163 6537<br>
drops 0 73 0 0<br>
marks 0 0 0 0<br>
qdisc ingress ffff: parent ffff:fff1 ---------------- <br>
Sent 8221609 bytes 11969 pkt (dropped 6, overlimits 0 requeues 0)
<br>
backlog 0b 0p requeues 0 <br>
root@Router:~# tc -s qdisc show dev ifb4pppoa-wan<br>
qdisc cake 803b: root refcnt 2 bandwidth 1512Kbit besteffort flows
<br>
Sent 7597496 bytes 11494 pkt (dropped 482, overlimits 10487
requeues 0) <br>
backlog 0b 0p requeues 0 <br>
Class 0 <br>
rate 1512Kbit<br>
target 12.0ms<br>
interval 112.0ms<br>
Pk delay 3.3ms<br>
Av delay 289us<br>
Sp delay 5us<br>
pkts 11976<br>
way inds 0<br>
way miss 769<br>
way cols 0<br>
bytes 8270163<br>
drops 482<br>
marks 0<br>
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