Sqm drops speed[Solved]

Painnance · December 29, 2024, 8:13am

Good day. Question.Does the sqm drops the speed via wifi? It drops from 30mbps to 16 mbps. I have to restart. Is this normal? Thanks in advance

BusyBox v1.36.1 (2024-08-29 19:07:48 UTC) built-in shell (ash)

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 OpenWrt 23.05.4, r24012-d8dd03c46f
 ---------------------------------------------
--------------------------------------------------
ubus call system board
{
  "kernel": "5.15.162",
  "hostname": "OpenWrt",
  "system": "ARMv7 Processor rev 5 (v7l)",
  "model": "Linksys EA8300 (Dallas)",
  "board_name": "linksys,ea8300",
  "rootfs_type": "squashfs",
  "release": {
    "distribution": "OpenWrt",
    "version": "23.05.4",
    "revision": "r24012-d8dd03c46f",
    "target": "ipq40xx/generic",
    "description": "OpenWrt 23.05.4 r24012-d8dd03c46f"
  }
}
t /etc/config/network

config interface 'loopback'
  option device 'lo'
  option proto 'static'
  option ipaddr '127.0.0.1'
  option netmask '255.0.0.0'

config globals 'globals'
  option ula_prefix 'fd4e:53be:eb32::/48'

config device
  option name 'br-lan'
  option type 'bridge'
  list ports 'lan1'
  list ports 'lan2'
  list ports 'lan3'
  list ports 'lan4'

config device
  option name 'lan1'
  option macaddr 'e8:9f:80:a3:e7:e4'

config device
  option name 'lan2'
  option macaddr 'e8:9f:80:a3:e7:e4'

config device
  option name 'lan3'
  option macaddr 'e8:9f:80:a3:e7:e4'

config device
  option name 'lan4'
  option macaddr 'e8:9f:80:a3:e7:e4'

config interface 'lan'
  option device 'br-lan'
  option proto 'static'
  option ipaddr '192.168.10.1'
  option netmask '255.255.255.0'
  option delegate '0'

config device
  option name 'wan'
  option macaddr 'e8:9f:80:a3:e7:e3'

config interface 'wan'
  option device 'wan'
  option proto 'dhcp'
  option delegate '0'
  option peerdns '0'
  list dns '1.1.1.1'
  list dns '1.0.0.1'

brada4 · December 29, 2024, 8:59am

First things first:

replace all pictures with respective config files (config/sqm)
replace speedtest picture with link to waveform bufferbloat result
upgrade to a supported v23.05.5

moeller0 · December 29, 2024, 9:09am

Please post the output of:
tc -s qdisc
tc -d qdisc
so we can see how sqm configured its qdiscs.

Painnance · December 29, 2024, 9:41am



 
tc -s qdisc
qdisc noqueue 0: dev lo root refcnt 2 
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc mq 0: dev eth0 root 
 Sent 2409127690 bytes 4069710 pkt (dropped 0, overlimits 0 requeues 58) 
 backlog 0b 0p requeues 58
qdisc fq_codel 0: dev eth0 parent :4 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64 
 Sent 515038438 bytes 1229644 pkt (dropped 0, overlimits 0 requeues 16) 
 backlog 0b 0p requeues 16
  maxpacket 1274 drop_overlimit 0 new_flow_count 12 ecn_mark 0
  new_flows_len 0 old_flows_len 0
qdisc fq_codel 0: dev eth0 parent :3 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64 
 Sent 453620748 bytes 781982 pkt (dropped 0, overlimits 0 requeues 12) 
 backlog 0b 0p requeues 12
  maxpacket 12112 drop_overlimit 0 new_flow_count 12 ecn_mark 0
  new_flows_len 0 old_flows_len 0
qdisc fq_codel 0: dev eth0 parent :2 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64 
 Sent 668708760 bytes 1011797 pkt (dropped 0, overlimits 0 requeues 20) 
 backlog 0b 0p requeues 20
  maxpacket 23456 drop_overlimit 0 new_flow_count 21 ecn_mark 0
  new_flows_len 0 old_flows_len 0
qdisc fq_codel 0: dev eth0 parent :1 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64 
 Sent 771759744 bytes 1046287 pkt (dropped 0, overlimits 0 requeues 10) 
 backlog 0b 0p requeues 10
  maxpacket 13794 drop_overlimit 0 new_flow_count 15 ecn_mark 0
  new_flows_len 0 old_flows_len 0
qdisc noqueue 0: dev lan1 root refcnt 2 
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc noqueue 0: dev lan2 root refcnt 2 
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc noqueue 0: dev lan3 root refcnt 2 
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc noqueue 0: dev lan4 root refcnt 2 
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc cake 8011: dev wan root refcnt 2 bandwidth 116Mbit besteffort triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw overhead 0 
 Sent 156430002 bytes 470937 pkt (dropped 210, overlimits 47859 requeues 0) 
 backlog 0b 0p requeues 0
 memory used: 2193224b of 5800000b
 capacity estimate: 116Mbit
 min/max network layer size:           42 /    1514
 min/max overhead-adjusted size:       42 /    1514
 average network hdr offset:           14

                  Tin 0
  thresh        116Mbit
  target            5ms
  interval        100ms
  pk_delay         41us
  av_delay         12us
  sp_delay          8us
  backlog            0b
  pkts           471147
  bytes       156747942
  way_inds         5561
  way_miss         5254
  way_cols            0
  drops             210
  marks               0
  ack_drop            0
  sp_flows            3
  bk_flows            1
  un_flows            0
  max_len         68130
  quantum          1514

qdisc ingress ffff: dev wan parent ffff:fff1 ---------------- 
 Sent 929874423 bytes 885180 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc noqueue 0: dev br-lan root refcnt 2 
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc noqueue 0: dev phy1-ap0 root refcnt 2 
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc noqueue 0: dev phy0-ap0 root refcnt 2 
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc cake 8012: dev ifb4wan root refcnt 2 bandwidth 41Mbit besteffort triple-isolate nonat wash no-ack-filter split-gso rtt 100ms raw overhead 0 
 Sent 941103067 bytes 874854 pkt (dropped 10326, overlimits 996263 requeues 0) 
 backlog 0b 0p requeues 0
 memory used: 4090072b of 4Mb
 capacity estimate: 41Mbit
 min/max network layer size:           60 /    1514
 min/max overhead-adjusted size:       60 /    1514
 average network hdr offset:           14

                  Tin 0
  thresh         41Mbit
  target            5ms
  interval        100ms
  pk_delay        770us
  av_delay        252us
  sp_delay         14us
  backlog            0b
  pkts           885180
  bytes       955767391
  way_inds         3646
  way_miss         5107
  way_cols            0
  drops           10326
  marks               2
  ack_drop            0
  sp_flows            0
  bk_flows            1
  un_flows            0
  max_len         66770
  quantum          1251

c -d qdisc
qdisc noqueue 0: dev lo root refcnt 2 
qdisc mq 0: dev eth0 root 
qdisc fq_codel 0: dev eth0 parent :4 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64 
qdisc fq_codel 0: dev eth0 parent :3 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64 
qdisc fq_codel 0: dev eth0 parent :2 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64 
qdisc fq_codel 0: dev eth0 parent :1 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64 
qdisc noqueue 0: dev lan1 root refcnt 2 
qdisc noqueue 0: dev lan2 root refcnt 2 
qdisc noqueue 0: dev lan3 root refcnt 2 
qdisc noqueue 0: dev lan4 root refcnt 2 
qdisc cake 8011: dev wan root refcnt 2 bandwidth 116Mbit besteffort triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw overhead 0 
qdisc ingress ffff: dev wan parent ffff:fff1 ---------------- 
qdisc noqueue 0: dev br-lan root refcnt 2 
qdisc noqueue 0: dev phy1-ap0 root refcnt 2 
qdisc noqueue 0: dev phy0-ap0 root refcnt 2 
qdisc cake 8012: dev ifb4wan root refcnt 2 bandwidth 41Mbit besteffort triple-isolate nonat wash no-ack-filter split-gso rtt 100ms raw overhead 0

moeller0 · December 29, 2024, 10:24am

Mmmh, so let's talk about your download and upload rates first:
ifb4wan download (ingress): 41000 (41 Mbps)
wan upload (egress): 116000 (116 Mbps)
That is an unusual asymmetry, typically people get higher download rates than upload rates, so what are your contracted rates and why did you configure 41/116?

Painnance · December 29, 2024, 11:05am

My speed is just 53/139 only so i set it that way. On the main modem there is only 2 devices connected. And on this router there's about 8 to 10 devices connected. Could this be a cpu limit?

Painnance · December 29, 2024, 11:31am

cat /etc/config/sqm

config queue 'eth1'
  option enabled '1'
  option interface 'wan'
  option download '41000'
  option upload '116000'
  option qdisc 'cake'
  option script 'piece_of_cake.qos'
  option linklayer 'none'
  option debug_logging '0'
  option verbosity '0'

moeller0 · December 29, 2024, 12:16pm

Main modem? Please describe your network setup a bit....

brada4 · December 29, 2024, 12:43pm

Show the result (link) from https://www.waveform.com/tools/bufferbloat with al qos disabled and router rebooted.
And confirm you have up to date openwrt (ubus call system board)

Painnance · December 29, 2024, 1:28pm

The Isp modem in the living room and this linksys router as an extender on another house

Painnance · December 29, 2024, 1:33pm

ubus call system board
{
  "kernel": "5.15.162",
  "hostname": "OpenWrt",
  "system": "ARMv7 Processor rev 5 (v7l)",
  "model": "Linksys EA8300 (Dallas)",
  "board_name": "linksys,ea8300",
  "rootfs_type": "squashfs",
  "release": {
    "distribution": "OpenWrt",
    "version": "23.05.4",
    "revision": "r24012-d8dd03c46f",
    "target": "ipq40xx/generic",
    "description": "OpenWrt 23.05.4 r24012-d8dd03c46f"
  }
}

brada4 · December 29, 2024, 1:34pm

Am i talking to a wall? You think the people on the internets wave magic stick and your router repairs itself?

flygarn12 · December 29, 2024, 2:04pm

If possible don’t measure through wifi, measure trough ethernet ports instead.

brada4 · December 29, 2024, 2:54pm

Precisely, esp 23.05.4 has wifi "download" speed halved.

moeller0 · December 29, 2024, 4:34pm

Mmmh, that is generally a problematic set-up if the goal is to debloat the internet access link (sqm needs to be in control of all wan traffic). So what is the goal here, debloat wan or debloat WiFi?

Also, is the OpenWrt router connected to the ISP modem-router via ethernet cable or via WiFi?

Painnance · January 2, 2025, 11:00am

I just upgraded it to 23.05.5 and i think it's ok now. Thanks

system · January 12, 2025, 11:00am

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