Slow Network Transfer Speeds

[KJB]

Hi all,

 

I'm having issues with my network speeds with over my LAN. I'm currently on the latest beta however this issue was present on all previous builds including stable.

Unraid seems to be capping any  network transfers at 100mbps. I am unable to read or write to my cache drive over LAN any faster that ~10MB/s.

iPerf3 results are reflecting this:

Quote

 

[ ID] Interval           Transfer     Bandwidth       Retr                                                              

[  4]   0.00-10.00  sec  46.0 MBytes  38.6 Mbits/sec  193             sender                                            

[  4]   0.00-10.00  sec  44.8 MBytes  37.6 Mbits/sec                  receiver                                          

[  6]   0.00-10.00  sec  76.2 MBytes  63.9 Mbits/sec  289             sender                                            

[  6]   0.00-10.00  sec  74.6 MBytes  62.5 Mbits/sec                  receiver                                          

[SUM]   0.00-10.00  sec   122 MBytes   102 Mbits/sec  482             sender                                            

[SUM]   0.00-10.00  sec   119 MBytes   100 Mbits/sec                  receiver

 

Network is showing correct at eth0: 1000 Mbps, full duplex, mtu 1500.

 

I have tried the following:

-Different CAT6 cables

-Different switch port

-Connecting directly to router

-A second intel NIC card

-Disabling NIC flow control and offload in tips and tweaks plugin

 

My WAN speed has a 100mbps limit which Unraid has no issue maximising so I can't really test if this is affected.

Any other advice or suggestions? I've living with this for awhile now but transferring large files locally is starting to become very tedious.

 

Cheers

 

 

unraid-diagnostics-20200723-1157.zip

Edited July 23, 2020 by qwijibo

[JorgeB]

Are you sure the problem in on Unraid side, i.e. have you tried with different source computers?

[ben2000de]

Hello there,

 

me having similar Problems. Also can't reach beyond ~10MB/s

Tried many different settings. No change.

Had FreeNas on the same machine with the full speed of my two disks.

 

Best regards

Ruben

unraid-diagnostics-20201108-2319.zip

[JorgeB]

Run a single stream iperf test.

[ben2000de]

6 hours ago, JorgeB said:

Run a single stream iperf test.

Server: iperf3 -s -f M

Client: iperf3 -c 192.168.178.57 -f K -w 500M 

Result: Connecting to host 192.168.178.57, port 5201
iperf3: error - socket buffer size not set correctly

[JorgeB]

No need for all those options, especially since something is incorrect, just:

iperf3 -s

iperf3 -c IP

 

 

[ben2000de]

Connecting to host 192.168.178.57, port 5201
[  5] local 192.168.178.49 port 36468 connected to 192.168.178.57 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  56.4 MBytes   473 Mbits/sec    0   2.66 MBytes       
[  5]   1.00-2.00   sec  67.5 MBytes   566 Mbits/sec    0   3.70 MBytes       
[  5]   2.00-3.00   sec  65.0 MBytes   545 Mbits/sec    0   3.79 MBytes       
[  5]   3.00-4.00   sec  67.5 MBytes   566 Mbits/sec    0   4.01 MBytes       
[  5]   4.00-5.00   sec  63.8 MBytes   535 Mbits/sec    0   4.01 MBytes       
[  5]   5.00-6.00   sec  66.2 MBytes   556 Mbits/sec    0   4.01 MBytes       
[  5]   6.00-7.00   sec  66.2 MBytes   556 Mbits/sec    0   4.01 MBytes       
[  5]   7.00-8.00   sec  66.2 MBytes   556 Mbits/sec    0   4.01 MBytes       
[  5]   8.00-9.00   sec  65.0 MBytes   545 Mbits/sec    0   4.01 MBytes       
[  5]   9.00-10.00  sec  65.0 MBytes   545 Mbits/sec    0   4.01 MBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   649 MBytes   544 Mbits/sec    0             sender
[  5]   0.00-10.04  sec   649 MBytes   542 Mbits/sec                  receiver

iperf Done.

In my current state, I get ~ 30MiB/s via smb using a manjaro client

shouldn't that be more? 

also made an updated diag file

 

 

tower-diagnostics-20201129-0210.zip

Edited November 29, 2020 by ben2000de

[JorgeB]

Iperf is showing low performance, but yes should be getting more than 30MB/s, though a first you mentioned 10MB/s? Try with another client if possible, like a WIndows PC.