OpenWrt/LEDE Project

  • Status Unconfirmed
  • Percent Complete
    0%
  • Task Type Bug Report
  • Category Base system
  • Assigned To No-one
  • Operating System All
  • Severity High
  • Priority Very Low
  • Reported Version openwrt-18.06
  • Due in Version Undecided
  • Due Date Undecided
  • Private
Attached to Project: OpenWrt/LEDE Project
Opened by Phil John - 19.06.2018

FS#1598 - regression: network performance on IPQ806X (R7800) has degraded significantly since the 4.14 kernel

Device problem occurs on: Netgear R7800
oftware versions of OpenWrt/LEDE release: Latest 18.06 branch revision

I’ve run an iperf3 test, I have records of automated tests that I run every 2 hours that show the usual performance is 380Mbps to bouygues.iperf.fr, however on 18.06 the max attainable is just over 60Mbps in a single threaded test. I need to go to at least 10 threads to get close to 380Mbps.

I reverted to stock and a 17.01 build to verify that there was no issue with the internet connection here, and they all showed the old behaviour.

This speed is unnafected by flow offload being off or on.

 
root@router01:~# iperf3 -c bouygues.iperf.fr -p 5207 -R
Connecting to host bouygues.iperf.fr, port 5207
Reverse mode, remote host bouygues.iperf.fr is sending
[  5] local xxx.xxx.xxx.xxx port 45674 connected to 89.84.1.222 port 5207
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  7.45 MBytes  62.5 Mbits/sec
[  5]   1.00-2.00   sec  7.31 MBytes  61.3 Mbits/sec
[  5]   2.00-3.00   sec  7.63 MBytes  64.0 Mbits/sec
[  5]   3.00-4.00   sec  7.64 MBytes  64.1 Mbits/sec
[  5]   4.00-5.00   sec  7.57 MBytes  63.5 Mbits/sec
[  5]   5.00-6.00   sec  7.63 MBytes  64.0 Mbits/sec
[  5]   6.00-7.00   sec  7.47 MBytes  62.6 Mbits/sec
[  5]   7.00-8.00   sec  7.85 MBytes  65.8 Mbits/sec
[  5]   8.00-9.00   sec  7.77 MBytes  65.2 Mbits/sec
[  5]   9.00-10.00  sec  7.86 MBytes  65.9 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  77.7 MBytes  65.2 Mbits/sec    0             sender
[  5]   0.00-10.00  sec  76.2 MBytes  63.9 Mbits/sec                  receiver

iperf Done.


This task has the following sub-task
ID Project Summary Priority Severity Progress
1759 OpenWrt/LEDE Project FS#1759 - SQM fine in 17.01.4, can’t keep up with line speed in 18.06 (Ne Very Low Critical
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