I am experiencing massive buffering issues with 4K movies from Synology NAS just after I have updated to June realese. I have Vero 4k + 1Gb ethernet to usb adapter + nfs via fstab.
The NAS to Vero performance before the update was excellent, now it is constantly buffering and is unwatchable.
My adapter (Realtek RTL8153 chipset):
And logs after opening 4K movie: https://paste.osmc.tv/sezugoyumo
Is the performance better with the internal adapter?
Just a moment, I will unplug tp link adapter and check without it.
I would suggest running an iperf test with the adapter as well
Ok, without adapter the performance is better, but scrolling through the movie is not as fluid and fast as before.
With the adapter the performance is very poor.
What happened?
I haven’t changed anything that would be specific to an adapter so I’d suggest doing some checks on your network.
Try reboot the NAS and any switches as a first step.
I have rebooted both the NAS and switch but sadly nothing changed.
And below iperf test from Vero (with adapter) to Synology:
*Client connecting to 192.168.1.4, TCP port 5001*
*TCP window size: 85.0 KByte (default)*
*------------------------------------------------------------*
*[ 3] local 192.168.1.90 port 44015 connected with 192.168.1.4 port 5001*
*[ ID] Interval Transfer Bandwidth*
*[ 3] 0.0-10.0 sec 222 MBytes 186 Mbits/sec*
*osmc@osmc:~$*
**osmc@osmc** : **~** $ iperf -c 192.168.1.4
------------------------------------------------------------
Client connecting to 192.168.1.4, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.1.90 port 58018 connected with 192.168.1.4 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 221 MBytes 185 Mbits/sec
**osmc@osmc** : **~** $Try in the other direction.
Sam
iperf3 -s on Vero
osmc@osmc:~$ iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.1.4, port 42844
[ 5] local 192.168.1.90 port 5201 connected to 192.168.1.4 port 42846
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 5] 0.00-1.00 sec 22.4 MBytes 188 Mbits/sec 0 576 KBytes
[ 5] 1.00-2.00 sec 21.3 MBytes 179 Mbits/sec 143 560 KBytes
[ 5] 2.00-3.00 sec 22.0 MBytes 185 Mbits/sec 0 639 KBytes
[ 5] 3.00-4.00 sec 21.5 MBytes 180 Mbits/sec 0 700 KBytes
[ 5] 4.00-5.00 sec 21.5 MBytes 180 Mbits/sec 142 518 KBytes
[ 5] 5.00-6.00 sec 21.9 MBytes 184 Mbits/sec 0 566 KBytes
[ 5] 6.00-7.00 sec 21.3 MBytes 179 Mbits/sec 91 427 KBytes
[ 5] 7.00-8.00 sec 22.6 MBytes 190 Mbits/sec 0 458 KBytes
[ 5] 8.00-9.00 sec 21.7 MBytes 182 Mbits/sec 0 477 KBytes
[ 5] 9.00-10.00 sec 22.0 MBytes 185 Mbits/sec 0 485 KBytes
[ 5] 10.00-10.05 sec 1001 KBytes 150 Mbits/sec 0 486 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 5] 0.00-10.05 sec 219 MBytes 183 Mbits/sec 376 sender
[ 5] 0.00-10.05 sec 0.00 Bytes 0.00 bits/sec receiver
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
iperf3 -s on Synology (looks bad):
osmc@osmc:~$ iperf3 -R -c 192.168.1.4
Connecting to host 192.168.1.4, port 5201
Reverse mode, remote host 192.168.1.4 is sending
[ 4] local 192.168.1.90 port 57412 connected to 192.168.1.4 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 2.42 MBytes 20.3 Mbits/sec
[ 4] 1.00-2.00 sec 1.74 MBytes 14.6 Mbits/sec
[ 4] 2.00-3.00 sec 1.69 MBytes 14.2 Mbits/sec
[ 4] 3.00-4.00 sec 3.36 MBytes 28.2 Mbits/sec
[ 4] 4.00-5.00 sec 2.91 MBytes 24.4 Mbits/sec
[ 4] 5.00-6.00 sec 2.69 MBytes 22.6 Mbits/sec
[ 4] 6.00-7.00 sec 1.95 MBytes 16.4 Mbits/sec
[ 4] 7.00-8.00 sec 1.93 MBytes 16.2 Mbits/sec
[ 4] 8.00-9.00 sec 4.37 MBytes 36.6 Mbits/sec
[ 4] 9.00-10.00 sec 1.95 MBytes 16.4 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 27.7 MBytes 23.2 Mbits/sec 4111 sender
[ 4] 0.00-10.00 sec 25.0 MBytes 21.0 Mbits/sec receiver
iperf Done.
osmc@osmc:~$
There’s a problem with your network there.
Can you check if flow control is enabled?
You should be picking up the r8152 kernel module but the Vero4K doesn’t have an alias for VID:PID 2357:0601 and therefore picks up cdc_ether, which will not work as well.
(By contrast, the Pi2/3 version of OSMC does have a correctly configured r8152 module.)
For a permanent solution, @sam_nazarko will need to add this to the kernel build. For now, you can make a temporary change. Unplug the device, then run:
sudo modprobe r8152
echo "2357 0601" | sudo tee /sys/bus/usb/drivers/r8152/new_id
Then plug the device back in and run some speed tests
That will be lost each reboot, so, if the above works, you might want to add this to the end of /etc/rc.local (before exit 0):
/sbin/modprobe r8152
/bin/echo "2357 0601" > /sys/bus/usb/drivers/r8152/new_idSadly it doesn’t work.
Speed after change (iperf3 -s running on Synology)
osmc@osmc:~$ iperf3 -R -c 192.168.1.4
Connecting to host 192.168.1.4, port 5201
Reverse mode, remote host 192.168.1.4 is sending
[ 4] local 192.168.1.90 port 39117 connected to 192.168.1.4 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 3.16 MBytes 26.5 Mbits/sec
[ 4] 1.00-2.00 sec 2.66 MBytes 22.3 Mbits/sec
[ 4] 2.00-3.00 sec 1.57 MBytes 13.2 Mbits/sec
[ 4] 3.00-4.00 sec 3.53 MBytes 29.6 Mbits/sec
[ 4] 4.00-5.00 sec 1.88 MBytes 15.8 Mbits/sec
[ 4] 5.00-6.00 sec 3.92 MBytes 32.9 Mbits/sec
[ 4] 6.00-7.00 sec 1.57 MBytes 13.2 Mbits/sec
[ 4] 7.00-8.00 sec 2.39 MBytes 20.1 Mbits/sec
[ 4] 8.00-9.00 sec 2.12 MBytes 17.8 Mbits/sec
[ 4] 9.00-10.00 sec 2.53 MBytes 21.2 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 27.8 MBytes 23.3 Mbits/sec 4103 sender
[ 4] 0.00-10.00 sec 25.3 MBytes 21.2 Mbits/sec receiver
iperf Done.
osmc@osmc:~$
No, I have been using it quite some time. Never have any problems with it until today.
New logs would be useful.
Please also describe your network configuration between the Vero and Synology.
And here is iperf test (iperf3 -s running on Vero)
Don’t understand why these speeds are ok?
sojer2005@Synology:~$ iperf3 -R -c 192.168.1.90
Connecting to host 192.168.1.90, port 5201
Reverse mode, remote host 192.168.1.90 is sending
[ 5] local 192.168.1.4 port 42876 connected to 192.168.1.90 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 22.2 MBytes 187 Mbits/sec
[ 5] 1.00-2.00 sec 22.1 MBytes 185 Mbits/sec
[ 5] 2.00-3.00 sec 22.1 MBytes 185 Mbits/sec
[ 5] 3.00-4.00 sec 22.1 MBytes 185 Mbits/sec
[ 5] 4.00-5.00 sec 22.1 MBytes 185 Mbits/sec
[ 5] 5.00-6.00 sec 22.0 MBytes 184 Mbits/sec
[ 5] 6.00-7.00 sec 21.9 MBytes 184 Mbits/sec
[ 5] 7.00-8.00 sec 21.9 MBytes 183 Mbits/sec
[ 5] 8.00-9.00 sec 21.8 MBytes 183 Mbits/sec
[ 5] 9.00-10.00 sec 21.8 MBytes 182 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 222 MBytes 187 Mbits/sec 0 sender
[ 5] 0.00-10.00 sec 220 MBytes 184 Mbits/sec receiver
iperf Done.Vero and Synology are connected to the same 1Gb switch.
New log uploaded (with “sudo modprobe r8152”)
https://paste.osmc.tv/renuyejetu
Looking at the log, it looks like you rebooted the system with the device attached, and then ran sudo modprobe r8152. That’s not going to work. The log shows that it’s still using cdc_ether.
You need to follow my instructions above, including unplugging the device.
BTW, did you add the commands to /etc/rc.local?
Here is my rc.local
/sbin/modprobe r8152
/bin/echo “2357 0601” > /sys/bus/usb/drivers/r8152/new_id
exit 0
So I just need to reboot now?