Forgot to edit my sources list to remove stretch-devel. A recent update took place while I was away on a business trip and upon returning saw a reboot prompt to install one of the development updates. After the reboot, the network/streaming performance is very, very bad.
Hi,
that’s a somewhat vague description of your issue like “my car is broken”. 
So, could you give more details
- What you’re doing when you find the performance issue?
- With what measures/experiences you compare the current situation, so you think of a deteriorated performance?
- As first troubleshooting have you ckecked [How To] Check Network Performance with iperf3, so you can isolate the issue to a general issue of the underlying network stack or it is more related to higher protocols like NFS, etc.?
I am also on latest Strech-Devel Update, but my network performance is intact. Iperf3 test: 940Mbits/sec in all directions
Interesting, I will do additional trouble shooting.
Done. Will do additional testing.
osmc@Vero4K:~$ iperf3 -R -c 192.168.1.17
Connecting to host 192.168.1.17, port 5201
Reverse mode, remote host 192.168.1.17 is sending
[ 4] local 192.168.1.24 port 52486 connected to 192.168.1.17 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 3.92 MBytes 32.9 Mbits/sec
[ 4] 1.00-2.00 sec 3.49 MBytes 29.3 Mbits/sec
[ 4] 2.00-3.00 sec 3.23 MBytes 27.1 Mbits/sec
[ 4] 3.00-4.00 sec 3.26 MBytes 27.4 Mbits/sec
[ 4] 4.00-5.00 sec 3.34 MBytes 28.0 Mbits/sec
[ 4] 5.00-6.00 sec 3.28 MBytes 27.5 Mbits/sec
[ 4] 6.00-7.00 sec 3.14 MBytes 26.4 Mbits/sec
[ 4] 7.00-8.00 sec 3.02 MBytes 25.3 Mbits/sec
[ 4] 8.00-9.00 sec 3.10 MBytes 26.0 Mbits/sec
[ 4] 9.00-10.00 sec 3.09 MBytes 25.9 Mbits/sec
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 35.6 MBytes 29.9 Mbits/sec 0 sender
[ 4] 0.00-10.00 sec 33.4 MBytes 28.0 Mbits/sec receiveriperf Done.
osmc@Vero4K:~$ iperf3 -c 192.168.1.17
Connecting to host 192.168.1.17, port 5201
[ 4] local 192.168.1.24 port 52488 connected to 192.168.1.17 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 4.41 MBytes 37.0 Mbits/sec 0 181 KBytes
[ 4] 1.00-2.00 sec 5.52 MBytes 46.3 Mbits/sec 0 283 KBytes
[ 4] 2.00-3.00 sec 5.85 MBytes 49.1 Mbits/sec 0 393 KBytes
[ 4] 3.00-4.00 sec 6.19 MBytes 52.0 Mbits/sec 0 472 KBytes
[ 4] 4.00-5.00 sec 6.33 MBytes 53.0 Mbits/sec 4 385 KBytes
[ 4] 5.00-6.00 sec 5.94 MBytes 49.8 Mbits/sec 1 303 KBytes
[ 4] 6.00-7.00 sec 6.12 MBytes 51.4 Mbits/sec 0 331 KBytes
[ 4] 7.00-8.00 sec 5.65 MBytes 47.3 Mbits/sec 0 346 KBytes
[ 4] 8.00-9.00 sec 5.73 MBytes 48.1 Mbits/sec 0 354 KBytes
[ 4] 9.00-10.00 sec 5.60 MBytes 47.1 Mbits/sec 0 355 KBytes
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 57.3 MBytes 48.1 Mbits/sec 5 sender
[ 4] 0.00-10.00 sec 55.3 MBytes 46.3 Mbits/sec receiveriperf Done.
Is this over Ethernet?
This is extremely slow – are you using powerline or something?
Sam
Powerline ethernet. I’m going to try switching out the adapters.
Switched out the adapter that was connected to the server and ran the test again (I should have tested the adapters first, I had a gut feeling). Sorry for the false alarm and thank you for the help team!
osmc@Vero4K:~$ iperf3 -R -c 192.168.1.17
Connecting to host 192.168.1.17, port 5201
Reverse mode, remote host 192.168.1.17 is sending
[ 4] local 192.168.1.24 port 58536 connected to 192.168.1.17 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 10.4 MBytes 87.1 Mbits/sec
[ 4] 1.00-2.00 sec 10.9 MBytes 91.8 Mbits/sec
[ 4] 2.00-3.00 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 3.00-4.00 sec 11.2 MBytes 94.1 Mbits/sec
[ 4] 4.00-5.00 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 5.00-6.00 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 6.00-7.00 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 7.00-8.00 sec 11.2 MBytes 94.1 Mbits/sec
[ 4] 8.00-9.00 sec 11.2 MBytes 94.2 Mbits/sec
[ 4] 9.00-10.00 sec 11.1 MBytes 92.9 Mbits/sec
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 114 MBytes 95.9 Mbits/sec 0 sender
[ 4] 0.00-10.00 sec 112 MBytes 93.7 Mbits/sec receiveriperf Done.
osmc@Vero4K:~$ iperf3 -c 192.168.1.17
Connecting to host 192.168.1.17, port 5201
[ 4] local 192.168.1.24 port 58538 connected to 192.168.1.17 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 7.45 MBytes 62.5 Mbits/sec 0 276 KBytes
[ 4] 1.00-2.00 sec 7.88 MBytes 66.1 Mbits/sec 0 339 KBytes
[ 4] 2.00-3.00 sec 8.54 MBytes 71.5 Mbits/sec 0 413 KBytes
[ 4] 3.00-4.00 sec 8.71 MBytes 73.1 Mbits/sec 0 498 KBytes
[ 4] 4.00-5.00 sec 8.66 MBytes 72.7 Mbits/sec 17 397 KBytes
[ 4] 5.00-6.00 sec 9.12 MBytes 76.6 Mbits/sec 0 445 KBytes
[ 4] 6.00-7.00 sec 9.36 MBytes 78.5 Mbits/sec 0 478 KBytes
[ 4] 7.00-8.00 sec 9.17 MBytes 77.0 Mbits/sec 6 366 KBytes
[ 4] 8.00-9.00 sec 9.44 MBytes 79.1 Mbits/sec 0 389 KBytes
[ 4] 9.00-10.00 sec 9.55 MBytes 80.0 Mbits/sec 0 403 KBytes
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 87.9 MBytes 73.7 Mbits/sec 23 sender
[ 4] 0.00-10.00 sec 85.5 MBytes 71.7 Mbits/sec receiveriperf Done.
if you had gut feeling yet you went the other route…
Yes. The only variable that changed was the Vero 4K. Sometimes we opt for reason over intuition.
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