How to Improve Read Speeds?

[c41cinema]

Hey all. New to Unraid. Long story short my Write speeds are 1000gbps but my read speeds are around 150mbps give or take. Is there any way to improve this? I have a 10gbe port and a 4tb SSD cache so that's why the read is pretty fast. I'm wanting to use this primarily for video editing so that's why the speed is important. Let me know. Thanks!

tower-diagnostics-20220320-1240.zip

[JorgeB]

Start by running an iperf single stream test to check that everything is performing normally with the LAN.

[Kubernetes]

Very interresting as I have the same problem. I have 1000gbps network and get 115MB/s for upload to unraid, but when I download the same file (or even others) I get only 80MB/s.

 

iperf shows that network is good in both directions:

 

➜ ~ iperf3 -c 192.168.1.254
Connecting to host 192.168.1.254, port 5201
[ 5] local 10.0.0.185 port 50514 connected to 192.168.1.254 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 112 MBytes 944 Mbits/sec
[ 5] 1.00-2.00 sec 112 MBytes 939 Mbits/sec
[ 5] 2.00-3.00 sec 112 MBytes 936 Mbits/sec
[ 5] 3.00-4.00 sec 111 MBytes 935 Mbits/sec
[ 5] 4.00-5.00 sec 110 MBytes 926 Mbits/sec
[ 5] 5.00-6.00 sec 111 MBytes 930 Mbits/sec
[ 5] 6.00-7.00 sec 112 MBytes 940 Mbits/sec
[ 5] 7.00-8.00 sec 112 MBytes 937 Mbits/sec
[ 5] 8.00-9.00 sec 111 MBytes 932 Mbits/sec
[ 5] 9.00-10.00 sec 111 MBytes 929 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 1.09 GBytes 935 Mbits/sec sender
[ 5] 0.00-10.01 sec 1.09 GBytes 931 Mbits/sec receiver

 

So I am also interrested in finding a solution for the slow read speed.

[c41cinema]

On 3/21/2022 at 1:10 PM, JorgeB said:

Start by running an iperf single stream test to check that everything is performing normally with the LAN.

Sorry can you point me in the right direction to do an iperf single stream test?

[ChatNoir]

7 hours ago, c41cinema said:

Sorry can you point me in the right direction to do an iperf single stream test?

 

[Kubernetes]

9 hours ago, c41cinema said:

Sorry can you point me in the right direction to do an iperf single stream test?

 

You can install iperf3 via the Nerd Pack App in Unraid

[Kubernetes]

I think it is related to the NIC. I did another iperf test with reverse mode, and this time I get exactly the same network speed when doing transfers from NAS to my computer

 

c:\> iperf3 -c 192.168.1.5 -R
Connecting to host 192.168.1.5, port 5201
Reverse mode, remote host 192.168.1.5 is sending
[  5] local 172.28.219.7 port 48698 connected to 192.168.1.5 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  84.9 MBytes   712 Mbits/sec
[  5]   1.00-2.00   sec  85.7 MBytes   719 Mbits/sec
[  5]   2.00-3.00   sec  85.8 MBytes   720 Mbits/sec
[  5]   3.00-4.00   sec  88.7 MBytes   744 Mbits/sec
[  5]   4.00-5.00   sec  86.6 MBytes   726 Mbits/sec
[  5]   5.00-6.00   sec  86.1 MBytes   723 Mbits/sec
[  5]   6.00-7.00   sec  87.4 MBytes   733 Mbits/sec
[  5]   7.00-8.00   sec  87.6 MBytes   735 Mbits/sec
[  5]   8.00-9.00   sec  87.1 MBytes   731 Mbits/sec
[  5]   9.00-10.00  sec  86.7 MBytes   727 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   869 MBytes   729 Mbits/sec    0             sender
[  5]   0.00-10.00  sec   867 MBytes   727 Mbits/sec                  receiver

iperf Done.

 

My NIC is a 

[10ec:8168]03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)

 

Could that be the issue? Any idea how to fix this? I would be willing to buy a USB Ethernet Adapter, but I don't know which one works best with unraid. A search in the forum was not a help.

 

Update:

 

I have the same NIC in another computer with debian 11 and with better speed.

I compared the drivers and it seems the one in unraid is much older. Any suggestion how to update for testing?

 

Upstream good/downstream bad:

ethtool -i eth0
driver: r8169
version: 5.15.30-Unraid
firmware-version: rtl8168g-2_0.0.1 02/06/13
expansion-rom-version: 
bus-info: 0000:03:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no

 

Up/Downstream are good:

sudo ethtool -i eno1
driver: r8169
version: 5.10.0-11-amd64
firmware-version: rtl8168h-2_0.0.2 02/26/15
expansion-rom-version: 
bus-info: 0000:02:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no

 

Edited March 23, 2022 by Kubernetes

[Kubernetes]

I have bought 2 USB Ethernet Adapters, one with another RTL Chipset (but not appearing in unraid) and one with AXIS Chipset. I have the same network experience as with the rtl8168 network card. Now I have not ideas anymore what the reason for this is.

Edited March 25, 2022 by Kubernetes