kmod-ipt-offload is for kernel 4.14, the fast path patch is
I use this patch on kernel 4.9 for my netgear wndr3800ch & wndr 3700v4 because ar71xx is on kernel 4.9 now.
@sotux
Hi,thanks for reply
Sorry I make a mistake,I should say"Netfilter Flow offload" instead of fast patch
So your custom build did not fit for kmod-ipt-offload ?
My custom build has included "netfilter flow offload" because the master branch include these commits. But I did not test it because I don't have these device relay on kernel 4.14. If you have the device that can run on kernel 4.14, then you can test it.
@nbd, @Mushoz, @Bartvz
I made another test today with & without the minstrel patch, my test environment is:
Router: Netgear wndr3700v2 with my custom build OpenWrt (mentioned above)
| Description | Net Device | IP | OS |
|---|---|---|---|
| notebook | Intel wireless 3160 | 192.168.3.170 | KDE neon base on ubuntu 16.04 |
| desktop | Realtek 1Gb eth | 192.168.3.38 | Windows 10 |
Test tool is iperf3.
First test is download from desktop with 2.4G wifi
| minstrel patched | desktop command | notebook command | bandwidth |
|---|---|---|---|
| yes | iperf3 -c 192.168.3.170 -i 1 -t 30 | iperf3 -s | 43.7 Mbits/sec |
| no | iperf3 -c 192.168.3.170 -i 1 -t 30 | iperf3 -s | 71.4 Mbits/sec |
Detail result:
with minstrel patched
Connecting to host 192.168.3.170, port 5201
[ 4] local 192.168.3.38 port 50107 connected to 192.168.3.170 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 5.12 MBytes 42.9 Mbits/sec
[ 4] 1.00-2.02 sec 4.88 MBytes 40.4 Mbits/sec
[ 4] 2.02-3.01 sec 2.12 MBytes 17.9 Mbits/sec
[ 4] 3.01-4.01 sec 4.50 MBytes 37.9 Mbits/sec
[ 4] 4.01-5.01 sec 4.75 MBytes 39.8 Mbits/sec
[ 4] 5.01-6.01 sec 4.62 MBytes 38.8 Mbits/sec
[ 4] 6.01-7.02 sec 4.62 MBytes 38.6 Mbits/sec
[ 4] 7.02-8.02 sec 5.00 MBytes 41.9 Mbits/sec
[ 4] 8.02-9.01 sec 9.88 MBytes 83.4 Mbits/sec
[ 4] 9.01-10.01 sec 6.25 MBytes 52.6 Mbits/sec
[ 4] 10.01-11.02 sec 5.25 MBytes 43.6 Mbits/sec
[ 4] 11.02-12.02 sec 5.00 MBytes 41.9 Mbits/sec
[ 4] 12.02-13.02 sec 5.12 MBytes 43.0 Mbits/sec
[ 4] 13.02-14.02 sec 4.88 MBytes 40.9 Mbits/sec
[ 4] 14.02-15.01 sec 5.12 MBytes 43.4 Mbits/sec
[ 4] 15.01-16.02 sec 4.88 MBytes 40.5 Mbits/sec
[ 4] 16.02-17.01 sec 4.62 MBytes 39.1 Mbits/sec
[ 4] 17.01-18.01 sec 4.62 MBytes 38.7 Mbits/sec
[ 4] 18.01-19.01 sec 5.00 MBytes 42.1 Mbits/sec
[ 4] 19.01-20.00 sec 5.38 MBytes 45.2 Mbits/sec
[ 4] 20.00-21.02 sec 5.00 MBytes 41.4 Mbits/sec
[ 4] 21.02-22.02 sec 5.00 MBytes 41.9 Mbits/sec
[ 4] 22.02-23.00 sec 5.25 MBytes 44.5 Mbits/sec
[ 4] 23.00-24.00 sec 5.88 MBytes 49.3 Mbits/sec
[ 4] 24.00-25.01 sec 9.00 MBytes 75.2 Mbits/sec
[ 4] 25.01-26.00 sec 5.12 MBytes 43.3 Mbits/sec
[ 4] 26.00-27.02 sec 4.88 MBytes 40.3 Mbits/sec
[ 4] 27.02-28.01 sec 5.00 MBytes 42.2 Mbits/sec
[ 4] 28.01-29.02 sec 4.88 MBytes 40.6 Mbits/sec
[ 4] 29.02-30.01 sec 4.88 MBytes 41.1 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-30.01 sec 156 MBytes 43.7 Mbits/sec sender
[ 4] 0.00-30.01 sec 156 MBytes 43.7 Mbits/sec receiver
iperf Done.
without minstrel patched
Connecting to host 192.168.3.170, port 5201
[ 4] local 192.168.3.38 port 50066 connected to 192.168.3.170 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.01 sec 8.62 MBytes 71.7 Mbits/sec
[ 4] 1.01-2.01 sec 9.38 MBytes 78.5 Mbits/sec
[ 4] 2.01-3.01 sec 9.50 MBytes 79.4 Mbits/sec
[ 4] 3.01-4.01 sec 7.62 MBytes 64.0 Mbits/sec
[ 4] 4.01-5.01 sec 4.25 MBytes 35.7 Mbits/sec
[ 4] 5.01-6.01 sec 3.88 MBytes 32.5 Mbits/sec
[ 4] 6.01-7.00 sec 6.38 MBytes 54.3 Mbits/sec
[ 4] 7.00-8.00 sec 10.4 MBytes 86.9 Mbits/sec
[ 4] 8.00-9.01 sec 10.2 MBytes 85.4 Mbits/sec
[ 4] 9.01-10.01 sec 9.12 MBytes 76.2 Mbits/sec
[ 4] 10.01-11.01 sec 8.88 MBytes 74.3 Mbits/sec
[ 4] 11.01-12.00 sec 8.88 MBytes 75.3 Mbits/sec
[ 4] 12.00-13.00 sec 9.00 MBytes 75.7 Mbits/sec
[ 4] 13.00-14.00 sec 9.25 MBytes 77.5 Mbits/sec
[ 4] 14.00-15.01 sec 8.62 MBytes 72.0 Mbits/sec
[ 4] 15.01-16.00 sec 8.62 MBytes 72.7 Mbits/sec
[ 4] 16.00-17.01 sec 10.0 MBytes 83.6 Mbits/sec
[ 4] 17.01-18.00 sec 10.4 MBytes 87.3 Mbits/sec
[ 4] 18.00-19.01 sec 8.38 MBytes 69.4 Mbits/sec
[ 4] 19.01-20.01 sec 3.88 MBytes 32.5 Mbits/sec
[ 4] 20.01-21.01 sec 4.38 MBytes 36.7 Mbits/sec
[ 4] 21.01-22.01 sec 6.00 MBytes 50.7 Mbits/sec
[ 4] 22.01-23.00 sec 10.1 MBytes 85.3 Mbits/sec
[ 4] 23.00-24.00 sec 10.8 MBytes 90.3 Mbits/sec
[ 4] 24.00-25.01 sec 10.6 MBytes 88.8 Mbits/sec
[ 4] 25.01-26.01 sec 10.8 MBytes 89.6 Mbits/sec
[ 4] 26.01-27.01 sec 9.62 MBytes 80.6 Mbits/sec
[ 4] 27.01-28.02 sec 8.38 MBytes 70.2 Mbits/sec
[ 4] 28.02-29.01 sec 9.38 MBytes 79.0 Mbits/sec
[ 4] 29.01-30.01 sec 10.1 MBytes 85.3 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-30.01 sec 255 MBytes 71.4 Mbits/sec sender
[ 4] 0.00-30.01 sec 255 MBytes 71.4 Mbits/sec receiver
iperf Done.
Second test is upload to desktop with 2.4G wifi
| minstrel patched | desktop command | notebook command | bandwidth |
|---|---|---|---|
| yes | iperf3 -s | iperf3 -c 192.168.3.38 -i 1 -t 30 | 53.1 Mbits/sec |
| no | iperf3 -s | iperf3 -c 192.168.3.38 -i 1 -t 30 | 52.3 Mbits/sec |
Detail result:
with minstrel patched
Connecting to host 192.168.3.38, port 5201
[ 4] local 192.168.3.170 port 39652 connected to 192.168.3.38 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 8.56 MBytes 71.8 Mbits/sec 0 48.5 KBytes
[ 4] 1.00-2.00 sec 6.13 MBytes 51.4 Mbits/sec 0 48.5 KBytes
[ 4] 2.00-3.00 sec 7.35 MBytes 61.7 Mbits/sec 0 48.5 KBytes
[ 4] 3.00-4.00 sec 6.74 MBytes 56.5 Mbits/sec 0 48.5 KBytes
[ 4] 4.00-5.00 sec 7.35 MBytes 61.7 Mbits/sec 0 51.3 KBytes
[ 4] 5.00-6.00 sec 6.74 MBytes 56.5 Mbits/sec 0 48.5 KBytes
[ 4] 6.00-7.00 sec 6.74 MBytes 56.5 Mbits/sec 0 62.7 KBytes
[ 4] 7.00-8.00 sec 3.68 MBytes 30.8 Mbits/sec 37 42.8 KBytes
[ 4] 8.00-9.00 sec 6.13 MBytes 51.4 Mbits/sec 0 57.0 KBytes
[ 4] 9.00-10.00 sec 6.74 MBytes 56.5 Mbits/sec 0 5.70 KBytes
[ 4] 10.00-11.00 sec 6.74 MBytes 56.5 Mbits/sec 0 48.5 KBytes
[ 4] 11.00-12.00 sec 7.35 MBytes 61.7 Mbits/sec 0 62.7 KBytes
[ 4] 12.00-13.00 sec 6.74 MBytes 56.5 Mbits/sec 0 42.8 KBytes
[ 4] 13.00-14.00 sec 7.96 MBytes 66.8 Mbits/sec 0 57.0 KBytes
[ 4] 14.00-15.00 sec 6.80 MBytes 57.0 Mbits/sec 0 51.3 KBytes
[ 4] 15.00-16.00 sec 6.13 MBytes 51.4 Mbits/sec 0 48.5 KBytes
[ 4] 16.00-17.00 sec 5.51 MBytes 46.3 Mbits/sec 0 42.8 KBytes
[ 4] 17.00-18.00 sec 6.13 MBytes 51.4 Mbits/sec 0 48.5 KBytes
[ 4] 18.00-19.00 sec 6.13 MBytes 51.4 Mbits/sec 0 57.0 KBytes
[ 4] 19.00-20.00 sec 6.74 MBytes 56.5 Mbits/sec 0 39.9 KBytes
[ 4] 20.00-21.00 sec 7.35 MBytes 61.7 Mbits/sec 0 54.2 KBytes
[ 4] 21.00-22.00 sec 6.13 MBytes 51.4 Mbits/sec 0 42.8 KBytes
[ 4] 22.00-23.00 sec 5.51 MBytes 46.3 Mbits/sec 0 42.8 KBytes
[ 4] 23.00-24.00 sec 4.29 MBytes 36.0 Mbits/sec 0 42.8 KBytes
[ 4] 24.00-25.00 sec 5.51 MBytes 46.3 Mbits/sec 0 39.9 KBytes
[ 4] 25.00-26.00 sec 4.90 MBytes 41.1 Mbits/sec 0 34.2 KBytes
[ 4] 26.00-27.00 sec 6.13 MBytes 51.4 Mbits/sec 0 31.4 KBytes
[ 4] 27.00-28.00 sec 5.51 MBytes 46.3 Mbits/sec 0 39.9 KBytes
[ 4] 28.00-29.00 sec 6.74 MBytes 56.5 Mbits/sec 0 45.6 KBytes
[ 4] 29.00-30.00 sec 5.51 MBytes 46.3 Mbits/sec 0 39.9 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-30.00 sec 190 MBytes 53.1 Mbits/sec 37 sender
[ 4] 0.00-30.00 sec 188 MBytes 52.7 Mbits/sec receiver
iperf Done.
without minstrel patched
Connecting to host 192.168.3.38, port 5201
[ 4] local 192.168.3.170 port 39862 connected to 192.168.3.38 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 9.27 MBytes 77.7 Mbits/sec 0 77.0 KBytes
[ 4] 1.00-2.00 sec 7.96 MBytes 66.8 Mbits/sec 0 57.0 KBytes
[ 4] 2.00-3.00 sec 4.29 MBytes 36.0 Mbits/sec 0 45.6 KBytes
[ 4] 3.00-4.00 sec 3.06 MBytes 25.7 Mbits/sec 0 71.3 KBytes
[ 4] 4.00-5.00 sec 3.06 MBytes 25.7 Mbits/sec 0 54.2 KBytes
[ 4] 5.00-6.00 sec 6.86 MBytes 57.6 Mbits/sec 0 68.4 KBytes
[ 4] 6.00-7.00 sec 7.96 MBytes 66.8 Mbits/sec 0 59.9 KBytes
[ 4] 7.00-8.00 sec 4.90 MBytes 41.1 Mbits/sec 35 54.2 KBytes
[ 4] 8.00-9.00 sec 7.35 MBytes 61.7 Mbits/sec 0 68.4 KBytes
[ 4] 9.00-10.00 sec 7.35 MBytes 61.7 Mbits/sec 0 59.9 KBytes
[ 4] 10.00-11.00 sec 7.35 MBytes 61.7 Mbits/sec 0 59.9 KBytes
[ 4] 11.00-12.00 sec 6.74 MBytes 56.5 Mbits/sec 0 42.8 KBytes
[ 4] 12.00-13.00 sec 6.13 MBytes 51.4 Mbits/sec 0 51.3 KBytes
[ 4] 13.00-14.00 sec 7.96 MBytes 66.8 Mbits/sec 0 51.3 KBytes
[ 4] 14.00-15.00 sec 7.35 MBytes 61.7 Mbits/sec 0 45.6 KBytes
[ 4] 15.00-16.00 sec 3.68 MBytes 30.8 Mbits/sec 0 39.9 KBytes
[ 4] 16.00-17.00 sec 5.51 MBytes 46.3 Mbits/sec 0 45.6 KBytes
[ 4] 17.00-18.00 sec 7.35 MBytes 61.7 Mbits/sec 0 59.9 KBytes
[ 4] 18.00-19.00 sec 7.35 MBytes 61.7 Mbits/sec 0 51.3 KBytes
[ 4] 19.00-20.00 sec 7.96 MBytes 66.8 Mbits/sec 0 51.3 KBytes
[ 4] 20.00-21.00 sec 3.74 MBytes 31.3 Mbits/sec 0 51.3 KBytes
[ 4] 21.00-22.00 sec 3.06 MBytes 25.7 Mbits/sec 0 54.2 KBytes
[ 4] 22.00-23.00 sec 2.45 MBytes 20.6 Mbits/sec 0 61.3 KBytes
[ 4] 23.00-24.00 sec 7.35 MBytes 61.7 Mbits/sec 0 48.5 KBytes
[ 4] 24.00-25.00 sec 7.41 MBytes 62.2 Mbits/sec 0 59.9 KBytes
[ 4] 25.00-26.00 sec 6.74 MBytes 56.5 Mbits/sec 0 59.9 KBytes
[ 4] 26.00-27.00 sec 6.74 MBytes 56.5 Mbits/sec 0 42.8 KBytes
[ 4] 27.00-28.00 sec 6.13 MBytes 51.4 Mbits/sec 0 57.0 KBytes
[ 4] 28.00-29.00 sec 7.35 MBytes 61.7 Mbits/sec 0 45.6 KBytes
[ 4] 29.00-30.00 sec 6.74 MBytes 56.5 Mbits/sec 0 39.9 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-30.00 sec 187 MBytes 52.3 Mbits/sec 35 sender
[ 4] 0.00-30.00 sec 186 MBytes 51.9 Mbits/sec receiver
iperf Done.
5G wifi seem's not affected no matter upload or download.
@sotux - is there any difference when targeting the router directly (there is already iperf3 there). This way will eliminate one of the computers.
OK. This time I ran iperf3 on the router directly and tested again.
Hardware Environment:
| Description | Net Device | IP | OS |
|---|---|---|---|
| notebook | Intel wireless 3160 | 192.168.3.170 | KDE neon base on Ubuntu 16.04 |
| wndr3700v2 | 1Gb eth | 192.168.3.254 | My custom build OpenWrt (mentioned above) |
Download test
| minstrel patched | router command | notebook command | bandwidth |
|---|---|---|---|
| yes | iperf3 -c 192.168.3.170 -i 1 -t 30 | iperf3 -s | 18.1 Mbits/sec |
| no | iperf3 -c 192.168.3.170 -i 1 -t 30 | iperf3 -s | 42.7 Mbits/sec |
Detail result:
with minstrel patched
Connecting to host 192.168.3.170, port 5201
[ 5] local 192.168.3.254 port 55516 connected to 192.168.3.170 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 2.66 MBytes 22.3 Mbits/sec 0 19.8 KBytes
[ 5] 1.00-2.00 sec 2.47 MBytes 20.7 Mbits/sec 0 19.8 KBytes
[ 5] 2.00-3.00 sec 2.34 MBytes 19.6 Mbits/sec 0 19.8 KBytes
[ 5] 3.00-4.00 sec 1.54 MBytes 12.9 Mbits/sec 0 17.0 KBytes
[ 5] 4.00-5.00 sec 1.77 MBytes 14.9 Mbits/sec 0 14.1 KBytes
[ 5] 5.00-6.00 sec 2.12 MBytes 17.8 Mbits/sec 0 19.8 KBytes
[ 5] 6.00-7.00 sec 2.15 MBytes 18.0 Mbits/sec 0 14.1 KBytes
[ 5] 7.00-8.00 sec 2.28 MBytes 19.1 Mbits/sec 0 17.0 KBytes
[ 5] 8.00-9.00 sec 2.27 MBytes 19.0 Mbits/sec 0 19.8 KBytes
[ 5] 9.00-10.00 sec 2.28 MBytes 19.1 Mbits/sec 0 14.1 KBytes
[ 5] 10.00-11.00 sec 2.33 MBytes 19.5 Mbits/sec 0 17.0 KBytes
[ 5] 11.00-12.00 sec 2.26 MBytes 19.0 Mbits/sec 0 17.0 KBytes
[ 5] 12.00-13.00 sec 2.94 MBytes 24.7 Mbits/sec 0 17.0 KBytes
[ 5] 13.00-14.00 sec 4.61 MBytes 38.6 Mbits/sec 0 22.6 KBytes
[ 5] 14.00-15.00 sec 2.33 MBytes 19.5 Mbits/sec 0 22.6 KBytes
[ 5] 15.00-16.00 sec 1.81 MBytes 15.2 Mbits/sec 0 19.8 KBytes
[ 5] 16.00-17.00 sec 1.97 MBytes 16.5 Mbits/sec 0 19.8 KBytes
[ 5] 17.00-18.00 sec 2.31 MBytes 19.4 Mbits/sec 0 19.8 KBytes
[ 5] 18.00-19.00 sec 1.92 MBytes 16.1 Mbits/sec 0 17.0 KBytes
[ 5] 19.00-20.00 sec 2.09 MBytes 17.5 Mbits/sec 0 17.0 KBytes
[ 5] 20.00-21.00 sec 1.01 MBytes 8.49 Mbits/sec 1 14.1 KBytes
[ 5] 21.00-22.00 sec 706 KBytes 5.78 Mbits/sec 0 17.0 KBytes
[ 5] 22.00-23.00 sec 745 KBytes 6.10 Mbits/sec 1 17.0 KBytes
[ 5] 23.00-24.00 sec 1.80 MBytes 15.1 Mbits/sec 0 17.0 KBytes
[ 5] 24.00-25.00 sec 2.22 MBytes 18.6 Mbits/sec 0 17.0 KBytes
[ 5] 25.00-26.00 sec 1.79 MBytes 15.0 Mbits/sec 0 14.1 KBytes
[ 5] 26.00-27.00 sec 1.99 MBytes 16.7 Mbits/sec 0 17.0 KBytes
[ 5] 27.00-28.00 sec 2.21 MBytes 18.5 Mbits/sec 0 22.6 KBytes
[ 5] 28.00-29.00 sec 2.02 MBytes 17.0 Mbits/sec 0 17.0 KBytes
[ 5] 29.00-30.00 sec 3.91 MBytes 32.8 Mbits/sec 0 19.8 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-30.00 sec 64.8 MBytes 18.1 Mbits/sec 2 sender
[ 5] 0.00-30.00 sec 64.7 MBytes 18.1 Mbits/sec receiver
iperf Done.
without minstrel patched
Connecting to host 192.168.3.170, port 5201
[ 5] local 192.168.3.254 port 52242 connected to 192.168.3.170 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 5.49 MBytes 46.1 Mbits/sec 0 17.0 KBytes
[ 5] 1.00-2.00 sec 3.87 MBytes 32.4 Mbits/sec 0 17.0 KBytes
[ 5] 2.00-3.00 sec 4.53 MBytes 38.0 Mbits/sec 0 14.1 KBytes
[ 5] 3.00-4.00 sec 4.33 MBytes 36.3 Mbits/sec 0 17.0 KBytes
[ 5] 4.00-5.00 sec 5.40 MBytes 45.3 Mbits/sec 0 17.0 KBytes
[ 5] 5.00-6.00 sec 4.88 MBytes 40.9 Mbits/sec 0 14.1 KBytes
[ 5] 6.00-7.00 sec 3.92 MBytes 32.9 Mbits/sec 0 17.0 KBytes
[ 5] 7.00-8.00 sec 4.99 MBytes 41.9 Mbits/sec 0 19.8 KBytes
[ 5] 8.00-9.00 sec 5.15 MBytes 43.2 Mbits/sec 0 17.0 KBytes
[ 5] 9.00-10.00 sec 5.21 MBytes 43.7 Mbits/sec 0 5.66 KBytes
[ 5] 10.00-11.00 sec 5.46 MBytes 45.8 Mbits/sec 0 17.0 KBytes
[ 5] 11.00-12.00 sec 4.80 MBytes 40.3 Mbits/sec 0 17.0 KBytes
[ 5] 12.00-13.00 sec 4.91 MBytes 41.2 Mbits/sec 0 17.0 KBytes
[ 5] 13.00-14.00 sec 4.86 MBytes 40.8 Mbits/sec 0 14.1 KBytes
[ 5] 14.00-15.00 sec 4.79 MBytes 40.2 Mbits/sec 0 14.1 KBytes
[ 5] 15.00-16.00 sec 5.40 MBytes 45.3 Mbits/sec 0 17.0 KBytes
[ 5] 16.00-17.00 sec 5.31 MBytes 44.5 Mbits/sec 0 19.8 KBytes
[ 5] 17.00-18.00 sec 5.32 MBytes 44.7 Mbits/sec 0 14.1 KBytes
[ 5] 18.00-19.00 sec 5.32 MBytes 44.6 Mbits/sec 0 17.0 KBytes
[ 5] 19.00-20.00 sec 5.05 MBytes 42.4 Mbits/sec 0 14.1 KBytes
[ 5] 20.00-21.00 sec 4.26 MBytes 35.8 Mbits/sec 0 19.8 KBytes
[ 5] 21.00-22.00 sec 6.17 MBytes 51.7 Mbits/sec 0 25.5 KBytes
[ 5] 22.00-23.00 sec 5.54 MBytes 46.5 Mbits/sec 0 22.6 KBytes
[ 5] 23.00-24.00 sec 3.26 MBytes 27.3 Mbits/sec 0 19.8 KBytes
[ 5] 24.00-25.00 sec 5.73 MBytes 48.0 Mbits/sec 0 19.8 KBytes
[ 5] 25.00-26.00 sec 4.82 MBytes 40.5 Mbits/sec 0 22.6 KBytes
[ 5] 26.00-27.00 sec 5.87 MBytes 49.3 Mbits/sec 0 22.6 KBytes
[ 5] 27.00-28.00 sec 5.84 MBytes 49.0 Mbits/sec 0 22.6 KBytes
[ 5] 28.00-29.00 sec 6.30 MBytes 52.9 Mbits/sec 0 19.8 KBytes
[ 5] 29.00-30.00 sec 6.04 MBytes 50.7 Mbits/sec 0 19.8 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-30.00 sec 153 MBytes 42.7 Mbits/sec 0 sender
[ 5] 0.00-30.00 sec 153 MBytes 42.7 Mbits/sec receiver
iperf Done.
Upload test
| minstrel patched | router command | notebook command | bandwidth |
|---|---|---|---|
| yes | iperf3 -s | iperf3 -c 192.168.3.254 -i 1 -t 30 | 55.8 Mbits/sec |
| no | iperf3 -s | iperf3 -c 192.168.3.254 -i 1 -t 30 | 68.2 Mbits/sec |
Detail result:
with minstrel patched
Connecting to host 192.168.3.254, port 5201
[ 4] local 192.168.3.170 port 49964 connected to 192.168.3.254 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 6.36 MBytes 53.4 Mbits/sec 0 36.8 KBytes
[ 4] 1.00-2.00 sec 5.22 MBytes 43.8 Mbits/sec 0 87.7 KBytes
[ 4] 2.00-3.00 sec 2.98 MBytes 25.0 Mbits/sec 0 56.6 KBytes
[ 4] 3.00-4.00 sec 2.98 MBytes 25.0 Mbits/sec 0 70.7 KBytes
[ 4] 4.00-5.00 sec 3.73 MBytes 31.3 Mbits/sec 0 59.4 KBytes
[ 4] 5.00-6.00 sec 8.20 MBytes 68.8 Mbits/sec 0 56.6 KBytes
[ 4] 6.00-7.00 sec 8.95 MBytes 75.1 Mbits/sec 0 70.7 KBytes
[ 4] 7.00-8.00 sec 8.95 MBytes 75.1 Mbits/sec 0 50.9 KBytes
[ 4] 8.00-9.00 sec 7.46 MBytes 62.6 Mbits/sec 0 56.6 KBytes
[ 4] 9.00-10.00 sec 8.20 MBytes 68.8 Mbits/sec 0 48.1 KBytes
[ 4] 10.00-11.00 sec 6.71 MBytes 56.3 Mbits/sec 0 59.4 KBytes
[ 4] 11.00-12.00 sec 8.95 MBytes 75.1 Mbits/sec 0 73.5 KBytes
[ 4] 12.00-13.00 sec 9.69 MBytes 81.3 Mbits/sec 0 73.5 KBytes
[ 4] 13.00-14.00 sec 8.20 MBytes 68.8 Mbits/sec 0 87.7 KBytes
[ 4] 14.00-15.00 sec 6.71 MBytes 56.3 Mbits/sec 0 45.2 KBytes
[ 4] 15.00-16.00 sec 6.71 MBytes 56.3 Mbits/sec 0 48.1 KBytes
[ 4] 16.00-17.00 sec 5.97 MBytes 50.0 Mbits/sec 0 50.9 KBytes
[ 4] 17.00-18.00 sec 2.98 MBytes 25.0 Mbits/sec 0 70.7 KBytes
[ 4] 18.00-19.00 sec 2.98 MBytes 25.0 Mbits/sec 0 70.7 KBytes
[ 4] 19.00-20.00 sec 5.22 MBytes 43.8 Mbits/sec 0 62.2 KBytes
[ 4] 20.00-21.00 sec 6.71 MBytes 56.3 Mbits/sec 0 52.3 KBytes
[ 4] 21.00-22.00 sec 2.98 MBytes 25.0 Mbits/sec 1 127 KBytes
[ 4] 22.00-23.00 sec 7.46 MBytes 62.6 Mbits/sec 0 56.6 KBytes
[ 4] 23.00-24.00 sec 8.20 MBytes 68.8 Mbits/sec 0 56.6 KBytes
[ 4] 24.00-25.00 sec 7.46 MBytes 62.5 Mbits/sec 0 65.0 KBytes
[ 4] 25.00-26.00 sec 8.20 MBytes 68.8 Mbits/sec 0 70.7 KBytes
[ 4] 26.00-27.00 sec 7.46 MBytes 62.6 Mbits/sec 0 62.2 KBytes
[ 4] 27.00-28.00 sec 7.46 MBytes 62.6 Mbits/sec 0 50.9 KBytes
[ 4] 28.00-29.00 sec 8.20 MBytes 68.8 Mbits/sec 0 53.7 KBytes
[ 4] 29.00-30.00 sec 8.20 MBytes 68.8 Mbits/sec 0 48.1 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-30.00 sec 199 MBytes 55.8 Mbits/sec 1 sender
[ 4] 0.00-30.00 sec 198 MBytes 55.2 Mbits/sec receiver
iperf Done.
without minstrel patched
Connecting to host 192.168.3.254, port 5201
[ 4] local 192.168.3.170 port 50144 connected to 192.168.3.254 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 8.41 MBytes 70.5 Mbits/sec 0 62.2 KBytes
[ 4] 1.00-2.00 sec 8.08 MBytes 67.8 Mbits/sec 0 67.9 KBytes
[ 4] 2.00-3.00 sec 7.46 MBytes 62.6 Mbits/sec 0 56.6 KBytes
[ 4] 3.00-4.00 sec 8.70 MBytes 73.0 Mbits/sec 0 65.0 KBytes
[ 4] 4.00-5.00 sec 7.46 MBytes 62.6 Mbits/sec 0 56.6 KBytes
[ 4] 5.00-6.00 sec 7.46 MBytes 62.6 Mbits/sec 1 56.6 KBytes
[ 4] 6.00-7.00 sec 6.84 MBytes 57.3 Mbits/sec 1 62.2 KBytes
[ 4] 7.00-8.00 sec 9.32 MBytes 78.2 Mbits/sec 0 70.7 KBytes
[ 4] 8.00-9.00 sec 8.70 MBytes 73.0 Mbits/sec 0 70.7 KBytes
[ 4] 9.00-10.00 sec 7.46 MBytes 62.6 Mbits/sec 0 5.66 KBytes
[ 4] 10.00-11.00 sec 6.21 MBytes 52.1 Mbits/sec 0 42.4 KBytes
[ 4] 11.00-12.00 sec 8.76 MBytes 73.5 Mbits/sec 0 53.7 KBytes
[ 4] 12.00-13.00 sec 9.32 MBytes 78.2 Mbits/sec 0 48.1 KBytes
[ 4] 13.00-14.00 sec 8.08 MBytes 67.8 Mbits/sec 0 53.7 KBytes
[ 4] 14.00-15.00 sec 6.21 MBytes 52.1 Mbits/sec 0 48.1 KBytes
[ 4] 15.00-16.00 sec 8.08 MBytes 67.8 Mbits/sec 0 67.9 KBytes
[ 4] 16.00-17.00 sec 9.32 MBytes 78.2 Mbits/sec 0 42.4 KBytes
[ 4] 17.00-18.00 sec 9.32 MBytes 78.2 Mbits/sec 0 62.2 KBytes
[ 4] 18.00-19.00 sec 8.70 MBytes 73.0 Mbits/sec 0 53.7 KBytes
[ 4] 19.00-20.00 sec 8.70 MBytes 73.0 Mbits/sec 0 73.5 KBytes
[ 4] 20.00-21.00 sec 6.21 MBytes 52.1 Mbits/sec 0 56.6 KBytes
[ 4] 21.00-22.00 sec 8.08 MBytes 67.8 Mbits/sec 0 73.5 KBytes
[ 4] 22.00-23.00 sec 9.94 MBytes 83.4 Mbits/sec 0 70.7 KBytes
[ 4] 23.00-24.00 sec 10.0 MBytes 83.9 Mbits/sec 0 56.6 KBytes
[ 4] 24.00-25.00 sec 6.84 MBytes 57.3 Mbits/sec 0 48.1 KBytes
[ 4] 25.00-26.00 sec 7.46 MBytes 62.6 Mbits/sec 0 82.0 KBytes
[ 4] 26.00-27.00 sec 6.84 MBytes 57.3 Mbits/sec 0 48.1 KBytes
[ 4] 27.00-28.00 sec 8.70 MBytes 73.0 Mbits/sec 0 62.2 KBytes
[ 4] 28.00-29.00 sec 8.70 MBytes 73.0 Mbits/sec 0 56.6 KBytes
[ 4] 29.00-30.00 sec 8.70 MBytes 73.0 Mbits/sec 0 70.7 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-30.00 sec 244 MBytes 68.2 Mbits/sec 2 sender
[ 4] 0.00-30.00 sec 243 MBytes 67.8 Mbits/sec receiver
iperf Done.
Thanks for testing. Could you please also do the same test that @Mushoz did and delete the minstrel patches one by one in reverse order to figure out which one is having this impact?
OK. I tested again with each patches, below is the result:
| Removed patch id | Download speed | Upload speed |
|---|---|---|
| 329 | 19.9 Mbits/sec | 66.3 Mbits/sec |
| 329, 328 | 18.9 Mbits/sec | 65.6 Mbits/sec |
| 329, 328, 327 | 43.3 Mbits/sec | 64.4 Mbits/sec |
| 329, 328, 327, 326 | 42.7 Mbits/sec | 68.2 Mbits/sec |
So, I think the patch "327-mac80211-minstrel-merge-with-minstrel_ht-always-enab.patch" cause the problem of 2.4g wifi download speed.
My router's info:
Netgear wndr3700v2, SoC Atheros AR7161, 64M ram, 16m flash, kernel 4.9.82, target ar71xx-generic, ath9k,
1 Like
@sotux Thank you very much for your testing. @nbd , It seems to be the same patch that's affecting me. The only difference is that in my case my upload speed is also affected, as can be seen here: Optimized build for the D-Link DIR-860L
If I can help testing with potential solutions for this regression, please let me know 
Thanks for testing. After some more careful code reading, I was able to find the bug. I've pushed a fix to master, please test.
Compiling now. Will edit this post and report back. Thank you very much for looking into it 
Ditto!
r6336 flashed fine and I have update my table with the values I have found in my quick and dirty testing. As you can see there is definitely some change in 2.4 GHz WiFi performance. My DIR860L hits the theoretical maximum throughput while connecting at 144 Mbps. Also there seems to be a slight bump in 5 GHz WiFi performance (99 vs 92 Mbit/sec on r6302)
| Build | Band (GHz) | Speed (Mbits/sec) |
|---|---|---|
| r6336 | 2.4 | 75.6 |
| r6336 | 5 | 99.1 |
| r6302 | 2.4 | 58.4 |
| r6302 | 5 | 91.8 |
| r6150 | 2.4 | 56.7 |
| r6150 | 5 | 107 |
| r6009 | 2.4 | 43.7 |
| r6009 | 5 | 40.7 |
| r5442 | 2.4 | 73.5 |
| r5442 | 5 | 57.4 |
And now I just pushed some more minstrel fixes that should help on 2.4 GHz as well.
My build environment was dirty and was running into compilation errors, so I cleaned it and started anew with compilation, hence it is taking a while. Should I let the current compilation continue (without the latest commits) and test versus my previous tests in which I noticed the regression? Or should I abort the current compilation and pull the latest changes in?
For troubleshooting whether the previous regression was fixed, the current compilation should be fine, right? Since the bug fix was in commit: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=55bd80f6d871d1c6c70101579524c42cdb73ed7d
So I guess we are a bit trigger happy in this thread 
Compiling again
//offtopic
It brings a smile on my face that there is such a great community.
The outcome of my quick and dirty testing is that the last 3 commits killed the 5GHz band WiFi performance. The 14.59 Mbits/sec number is an average number out of 3 test runs where I got the following numbers 4.75, 35.4 and 3.62 Mbits/sec. The 2.4 GHz performance is up a bit once again. While using the noscan '1' option, and connecting at 300 Mbps, I reach 105 Mbits/sec.
Updated numbers:
| Build | Band (GHz) | Speed (Mbits/sec) |
|---|---|---|
| r6339 | 2.4 | 105 |
| r6339 | 5 | 14.59 |
| r6336 | 2.4 | 75.6 |
| r6336 | 5 | 99.1 |
| r6302 | 2.4 | 58.4 |
| r6302 | 5 | 91.8 |
| r6150 | 2.4 | 56.7 |
| r6150 | 5 | 107 |
| r6009 | 2.4 | 43.7 |
| r6009 | 5 | 40.7 |
| r5442 | 2.4 | 73.5 |
| r5442 | 5 | 57.4 |
Channel 1 with 20mhz width: https://imgur.com/a/4U5D8
Channel 11 with 40mhz width: https://imgur.com/a/8OXFM
So it has definitely gotten a bit better, but I am still nowhere near the speed before the Minstrel patches. I will fetch the latest commits and redo my testing in a bit.
1 Like
Sorry about that, there was one more missing check that I needed to add. 5 GHz throughput should be back to normal now.