# Software flow offloading implications

**URL:** <https://forum.openwrt.org/t/software-flow-offloading-implications/90957>\
**Category:** Installing and Using OpenWrt\
**Created:** [March 11, 2021, 2:26pm UTC](https://forum.openwrt.org/t/software-flow-offloading-implications/90957 "2021-03-11T14:26:02Z")\
**Posts on this page:** 1\
**Showing post:** 26

<div class="post-metadata">

**Author:** ![anon78773196](https://forum.openwrt.org/letter_avatar/anon78773196/32/5_5575768a8748004e209b776fc1b2916d.png) [@anon78773196](https://forum.openwrt.org/u/anon78773196)\
**Post date:** [June 17, 2021, 2:06am UTC](https://forum.openwrt.org/t/software-flow-offloading-implications/90957/26 "2021-06-17T02:06:23Z")

</div>

with sqm no sfo [http://www.dslreports.com/speedtest/68678992](http://www.dslreports.com/speedtest/68678992)

```
root@OpenWrt:~# tc -s -d 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 fq_codel 0: dev eth0 root refcnt 2 limit 10240p flows 1024 quantum 1518 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64
 Sent 144618747286 bytes 174506922 pkt (dropped 0, overlimits 0 requeues 27)
 backlog 0b 0p requeues 27
  maxpacket 9108 drop_overlimit 0 new_flow_count 54047 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 8009: dev wan root refcnt 2 bandwidth 16Mbit besteffort triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms noatm overhead 44
 Sent 5048846069 bytes 40710429 pkt (dropped 3345, overlimits 16534528 requeues 0)
 backlog 0b 0p requeues 0
 memory used: 918272b of 4Mb
 capacity estimate: 16Mbit
 min/max network layer size: 28 / 1500
 min/max overhead-adjusted size: 72 / 1544
 average network hdr offset: 14

                  Tin 0
  thresh 16Mbit
  target 5ms
  interval 100ms
  pk_delay 15.3ms
  av_delay 4.48ms
  sp_delay 3us
  backlog 0b
  pkts 40713774
  bytes 5053775579
  way_inds 564415
  way_miss 155112
  way_cols 0
  drops 3345
  marks 0
  ack_drop 0
  sp_flows 1
  bk_flows 1
  un_flows 0
  max_len 17054
  quantum 488

qdisc ingress ffff: dev wan parent ffff:fff1 ----------------
 Sent 72353669760 bytes 53590324 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 cake 800a: dev ifb4wan root refcnt 2 bandwidth 56Mbit besteffort triple-isolate nonat wash no-ack-filter split-gso rtt 100ms noatm overhead 44
 Sent 71833817021 bytes 52268548 pkt (dropped 1321776, overlimits 87391757 requeues 0)
 backlog 0b 0p requeues 0
 memory used: 1342536b of 4Mb
 capacity estimate: 56Mbit
 min/max network layer size: 46 / 1500
 min/max overhead-adjusted size: 90 / 1544
 average network hdr offset: 14

                  Tin 0
  thresh 56Mbit
  target 5ms
  interval 100ms
  pk_delay 667us
  av_delay 136us
  sp_delay 8us
  backlog 0b
  pkts 53590324
  bytes 73683624904
  way_inds 294724
  way_miss 109165
  way_cols 0
  drops 1321776
  marks 0
  ack_drop 0
  sp_flows 2
  bk_flows 1
  un_flows 0
  max_len 39364
  quantum 1514

qdisc noqueue 0: dev wlan0 root refcnt 2
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
 backlog 0b 0p requeues 0
root@OpenWrt:~#

```

with sqm with sfo

> **[Speed test result](http://www.dslreports.com/speedtest/68679020)**
>
> I tested my connection at DSLReports.com/speedtest ..

```
root@OpenWrt:~# tc -s -d 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 fq_codel 0: dev eth0 root refcnt 2 limit 10240p flows 1024 quantum 1518 target 5ms interval 100ms memory_limit 4Mb ecn drop_batch 64
 Sent 144832145622 bytes 174785566 pkt (dropped 0, overlimits 0 requeues 27)
 backlog 0b 0p requeues 27
  maxpacket 9108 drop_overlimit 0 new_flow_count 54088 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 8009: dev wan root refcnt 2 bandwidth 16Mbit besteffort triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms noatm overhead 44
 Sent 5095097320 bytes 40826079 pkt (dropped 4137, overlimits 16665515 requeues 0)
 backlog 0b 0p requeues 0
 memory used: 918272b of 4Mb
 capacity estimate: 16Mbit
 min/max network layer size: 28 / 1500
 min/max overhead-adjusted size: 72 / 1544
 average network hdr offset: 14

                  Tin 0
  thresh 16Mbit
  target 5ms
  interval 100ms
  pk_delay 550us
  av_delay 134us
  sp_delay 7us
  backlog 0b
  pkts 40830216
  bytes 5101225230
  way_inds 565065
  way_miss 155330
  way_cols 0
  drops 4137
  marks 0
  ack_drop 0
  sp_flows 0
  bk_flows 1
  un_flows 0
  max_len 17054
  quantum 488

qdisc ingress ffff: dev wan parent ffff:fff1 ----------------
 Sent 72435286656 bytes 53667803 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 cake 800a: dev ifb4wan root refcnt 2 bandwidth 56Mbit besteffort triple-isolate nonat wash no-ack-filter split-gso rtt 100ms noatm overhead 44
 Sent 71916206973 bytes 52345548 pkt (dropped 1322255, overlimits 87489041 requeues 0)
 backlog 0b 0p requeues 0
 memory used: 1342536b of 4Mb
 capacity estimate: 56Mbit
 min/max network layer size: 46 / 1500
 min/max overhead-adjusted size: 90 / 1544
 average network hdr offset: 14

                  Tin 0
  thresh 56Mbit
  target 5ms
  interval 100ms
  pk_delay 290us
  av_delay 72us
  sp_delay 3us
  backlog 0b
  pkts 53667803
  bytes 73766740042
  way_inds 298245
  way_miss 109318
  way_cols 0
  drops 1322255
  marks 0
  ack_drop 0
  sp_flows 1
  bk_flows 1
  un_flows 0
  max_len 39364
  quantum 1514

qdisc noqueue 0: dev wlan0 root refcnt 2
 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
 backlog 0b 0p requeues 0
root@OpenWrt:~#

```

test realized with rt3200 belkin

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