[Cerowrt-devel] performance numbers from WRT1200AC (Re: Latest build test - new sqm-scripts seem to work; "cake overhead 40" didn't)
Mikael Abrahamsson
swmike at swm.pp.se
Mon Jun 29 04:09:13 EDT 2015
On Mon, 29 Jun 2015, Sebastian Moeller wrote:
> Ah, I see, you are still using tc’s stab mechanism for account of
> per packet overhead and link layer adjustments instead of cake’s (you
> need to check the advanced options check box in the link layer
> adjustments tab, and then select “cake” as the lnk layer adjustment
> mechanism).
Ok, so when I changed "stab" to cake, I get the following, but it still
only shapes one way. If I change to discipline to "fq_codel" or "pie" I
get bidirectonal shaping with otherwise same settings.
root at OpenWrt:~# cat /etc/config/sqm
config queue 'eth1'
option interface 'eth0'
option qdisc_advanced '1'
option squash_dscp '0'
option squash_ingress '0'
option ingress_ecn 'ECN'
option egress_ecn 'ECN'
option qdisc_really_really_advanced '0'
option download '50000'
option upload '50000'
option linklayer 'ethernet'
option overhead '42'
option linklayer_advanced '1'
option tcMTU '2047'
option tcTSIZE '128'
option tcMPU '0'
option linklayer_adaptation_mechanism 'cake'
option enabled '1'
option qdisc 'cake'
option script 'simple.qos'
root at OpenWrt:~# tc -d qdisc
qdisc cake 8002: dev eth0 root refcnt 9 bandwidth 50Mbit diffserv4 flows
noatm overhead 42
qdisc ingress ffff: dev eth0 parent ffff:fff1 ----------------
qdisc mq 0: dev eth1 root
qdisc fq_codel 0: dev eth1 parent :1 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :2 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :3 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :4 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :5 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :6 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :7 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :8 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev ifb4eth0 root refcnt 2 limit 1024p flows 1024
quantum 300 target 5.0ms interval 100.0ms ecn
root at OpenWrt:~# tc -d class show dev eth0
class cake 8002:4e1 parent 8002:
class cake 8002:b89 parent 8002:
root at OpenWrt:~# tc -d class show dev ifb4eth0
class fq_codel :12c parent none
class fq_codel :222 parent none
root at OpenWrt:~# /etc/init.d/sqm restart
SQM: Trying to start/stop SQM on all interfaces.
SQM: /usr/lib/sqm/run.sh Stopping SQM on interface: eth0
SQM: ifb associated with interface eth0:
SQM: trying to create new IFB: ifb4eth0
RTNETLINK answers: File exists
SQM: /usr/lib/sqm/stop.sh: Stopping eth0
SQM: ifb associated with interface eth0:
SQM: /usr/lib/sqm/run.sh Queue Setup Script: /usr/lib/sqm/simple.qos
+ . /usr/lib/sqm/functions.sh
+ [ -z 50000 ]
+ [ -z 50000 ]
+ [ -z eth0 ]
+ [ -z cake ]
+ [ -z cake ]
+ [ -z ethernet ]
+ [ -z 42 ]
+ [ -z 2047 ]
+ [ -z 0 ]
+ [ -z 128 ]
+ [ -z ]
+ AUTOFLOW=0
+ [ -z ]
+ LIMIT=1001
+ [ -z ]
+ ILIMIT=
+ [ -z ]
+ ELIMIT=
+ [ -z ]
+ ITARGET=
+ [ -z ]
+ ETARGET=
+ [ -z ECN ]
+ [ -z ECN ]
+ [ -z 0 ]
+ [ -z 0 ]
+ [ -z ]
+ IQDISC_OPTS=
+ [ -z ]
+ EQDISC_OPTS=
+ [ -z ]
+ which tc
+ TC=/usr/sbin/tc
+ [ -z ]
+ which ip
+ IP=/usr/sbin/ip
+ [ -z ]
+ which insmod
+ INSMOD=/usr/sbin/insmod
+ [ -z ]
+ TARGET=5ms
+ [ -z ]
+ IPT_MASK=0xff
+ [ -z ]
+ IPT_MASK_STRING=/0xff
+ [ -z ]
+ get_ifb_for_if eth0
+ CUR_IF=eth0
+ get_ifb_associated_with_if eth0
+ CUR_IF=eth0
+ tc+ -p filtergrep -o -e ifb[^)]\+
show parent ffff: dev eth0
+ CUR_IFB=
+ sqm_logger ifb associated with interface eth0:
+ logger -t SQM -s ifb associated with interface eth0:
SQM: ifb associated with interface eth0:
+ echo
+ CUR_IFB=
+ [ -z ]
+ create_new_ifb_for_if eth0
+ CUR_IF=eth0
+ MAX_IF_NAME_LENGTH=15
+ IFB_PREFIX=ifb4
+ NEW_IFB=ifb4eth0
+ IFB_NAME_LENGTH=8
+ [ 8 -gt 15 ]
+ sqm_logger trying to create new IFB: ifb4eth0
+ logger -t SQM -s trying to create new IFB: ifb4eth0
SQM: trying to create new IFB: ifb4eth0
+ /usr/sbin/ip link add name ifb4eth0 type ifb
RTNETLINK answers: File exists
+ echo ifb4eth0
+ CUR_IFB=ifb4eth0
+ [ -z ifb4eth0 ]
+ echo ifb4eth0
+ DEV=ifb4eth0
+ do_modules
+ insmod act_ipt
+ lsmod+ grep
-q ^act_ipt
+ insmod sch_cake
+ + grep -q ^sch_cake
lsmod
+ insmod sch_ingress
+ + greplsmod
-q ^sch_ingress
+ insmod act_mirred
+ + greplsmod -q ^act_mirred
+ insmod cls_fw
+ + grep -q ^cls_fw
lsmod
+ insmod sch_htb
+ + lsmodgrep -q ^sch_htb
+ ipt_setup
+ ipt -t mangle -N QOS_MARK_eth0
+ echo -t mangle -N QOS_MARK_eth0
+ sed s/-A/-D/g
+ d=-t mangle -N QOS_MARK_eth0
+ [ -t mangle -N QOS_MARK_eth0 != -t mangle -N QOS_MARK_eth0 ]
+ echo -t mangle -N QOS_MARK_eth0
+ sed s/-I/-D/g
+ d=-t mangle -N QOS_MARK_eth0
+ [ -t mangle -N QOS_MARK_eth0 != -t mangle -N QOS_MARK_eth0 ]
+ iptables -t mangle -N QOS_MARK_eth0
+ ip6tables -t mangle -N QOS_MARK_eth0
+ sqm_logger cake does all the diffserv work - no need for iptables rules
+ logger -t SQM -s cake
SQM: cake
+ [ 0 = 1 ]
+ sqm_logger Keeping differentiated services code points (DSCP) from
ingress.
+ logger -t SQM -s Keeping differentiated services code points (DSCP) from
ingress.
SQM: Keeping differentiated services code points (DSCP) from ingress.
+ CAKE_OPTS=
+ ipt -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ echo+ sed s/-A/-D/g
-t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g QOS_MARK_eth0
+ d=-t mangle -D PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ [ -t mangle -D PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0 != -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff
-g QOS_MARK_eth0 ]
+ iptables -t mangle -D PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ip6tables -t mangle -D PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ echo+ sed s/-I/-D/g
-t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g QOS_MARK_eth0
+ d=-t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ [ -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0 != -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff
-g QOS_MARK_eth0 ]
+ iptables -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ip6tables -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ipt -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ echo+ sed s/-A/-D/g
-t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ d=-t mangle -D POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ [ -t mangle -D POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0 != -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff
-g QOS_MARK_eth0 ]
+ iptables -t mangle -D POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ip6tables -t mangle -D POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ echo+ sed s/-I/-D/g
-t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ d=-t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ [ -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0 != -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff
-g QOS_MARK_eth0 ]
+ iptables -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ip6tables -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ipt -t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ echo+ sed s/-A/-D/g
-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ d=-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ [ -t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff !=
-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff ]
+ echo+ sed s/-I/-D/g
-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ d=-t mangle -D PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ [ -t mangle -D PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff !=
-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff ]
+ iptables -t mangle -D PREROUTING -i vtun+ -p tcp -j MARK --set-mark
0x2/0xff
+ ip6tables -t mangle -D PREROUTING -i vtun+ -p tcp -j MARK --set-mark
0x2/0xff
+ iptables -t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark
0x2/0xff
+ ip6tables -t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark
0x2/0xff
+ ipt -t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ echo+ sed s/-A/-D/g
-t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ d=-t mangle -D OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ [ -t mangle -D OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42 != -t mangle -A OUTPUT -p udp -m multiport --ports
123,53 -j DSCP --set-dscp-class AF42 ]
+ iptables -t mangle -D OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ ip6tables -t mangle -D OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ echo+ sed s/-I/-D/g
-t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ d=-t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ [ -t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42 != -t mangle -A OUTPUT -p udp -m multiport --ports
123,53 -j DSCP --set-dscp-class AF42 ]
+ iptables -t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ ip6tables -t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ [ 50000 -ne 0 ]
+ egress
+ CEIL=50000
+ expr 50000 / 3
+ PRIO_RATE=16666
+ expr 50000 / 6
+ BE_RATE=8333
+ expr 50000 / 6
+ BK_RATE=8333
+ expr 50000 - 16
+ BE_CEIL=49984
+ get_mtu eth0 50000
+ BW=50000
+ cat /sys/class/net/eth0/mtu
+ F=1500
+ [ -z 1500 ]
+ [ 50000 -gt 20000 ]
+ F=3000
+ [ 50000 -gt 30000 ]
+ F=6000
+ [ 50000 -gt 40000 ]
+ F=12000
+ [ 50000 -gt 50000 ]
+ [ 50000 -gt 60000 ]
+ [ 50000 -gt 80000 ]
+ echo 12000
+ LQ=quantum 12000
+ /usr/sbin/tc qdisc del dev eth0 root
+ get_stab_string
+ STABSTRING=
+ [ cake = tc_stab -a ethernet != none ]
+ echo
+ get_cake_lla_string
+ STABSTRING=
+ [ cake = cake -a ethernet != none ]
+ [ ethernet = atm ]
+ STABSTRING= overhead 42
+ sqm_logger cake link layer adjustments: overhead 42
+ logger -t SQM -s cake link layer adjustments: overhead 42
SQM: cake link layer adjustments: overhead 42
+ sqm_logger SQM: overhead 42
+ logger -t SQM -s SQM: overhead 42
SQM: SQM: overhead 42
+ echo overhead 42
+ /usr/sbin/tc qdisc add dev eth0 root cake bandwidth 50000kbit overhead
42
+ sqm_logger egress shaping activated
+ logger -t SQM -s egress shaping activated
SQM: egress shaping activated
+ [ 50000 -ne 0 ]
+ ingress
+ CEIL=50000
+ expr 50000 / 3
+ PRIO_RATE=16666
+ expr 50000 / 6
+ BE_RATE=8333
+ expr 50000 / 6
+ BK_RATE=8333
+ expr 50000 - 16
+ BE_CEIL=49984
+ get_mtu eth0 50000
+ BW=50000
+ cat /sys/class/net/eth0/mtu
+ F=1500
+ [ -z 1500 ]
+ [ 50000 -gt 20000 ]
+ F=3000
+ [ 50000 -gt 30000 ]
+ F=6000
+ [ 50000 -gt 40000 ]
+ F=12000
+ e 50000 -gt 50000 ]
+ [ 50000 -gt 60000 ]
+ [ 50000 -gt 80000 ]
+ echo 12000
+ LQ=quantum 12000
+ /usr/sbin/tc qdisc del dev eth0 handle ffff: ingress
+ /usr/sbin/tc qdisc add dev eth0 handle ffff: ingress
+ /usr/sbin/tc qdisc del dev ifb4eth0 root
+ [ 0 = 1 ]
+ sqm_logger Perform DSCP based filtering on ingress. (3-tier
classification)
+ logger -t SQM -s Perform DSCP based filtering on ingress. (3-tier
classification)
SQM: Perform DSCP based filtering on ingress. (3-tier classification)
+ get_stab_string
+ STABSTRING=
+ [ cake = tc_stab -a ethernet != none ]
+ echo
+ get_cake_lla_string
+ STABSTRING=
+ [ cake = cake -a ethernet != none ]
+ [ ethernet = atm ]
+ STABSTRING= overhead 42
+ sqm_logger cake link layer adjustments: overhead 42
+ logger -t SQM -s cake link layer adjustments: overhead 42
SQM: cake link layer adjustments: overhead 42
+ sqm_logger SQM: overhead 42
+ logger -t SQM -s SQM: overhead 42
SQM: SQM: overhead 42
+ echo overhead 42
+ /usr/sbin/tc qdisc add dev eth0 root cake bandwidth 50000kbit overhead
42
RTNETLINK answers: File exists
+ ifconfig ifb4eth0 up
+ /usr/sbin/tc filter add dev eth0 parent ffff: protocol all prio 10 u32
match u32 0 0 flowid 1:1 action mirred egress redirect dev ifb4eth0
+ sqm_logger ingress shaping activated
+ logger -t SQM -s ingress shaping activated
SQM: ingress shaping activated
--
Mikael Abrahamsson email: swmike at swm.pp.se
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