Odroid HC2 upload speed

Node Operators
1

Hi guys,
my node is running on Odroid HC2. My download speed is 140 Mbits, but upload is only 2.95 Mbits. My internet connection is 300/20 Mbits.
Any ideas why the upload speed is so low?

2

How fast is it on your desktop PC?

3

On the desktop is the speed OK. 295/20.

4

Strange… idk then. SD-Card might limit download,but not upload. and download seems fine. so… strange. the hc2 worked well for me so it’s not a device problem (it’s not even at lan speeds anyway). How are you testing the speed?

5

I used speedtest-cli.

6

I also have an Odroid HC2, what did you use to test the upload/download speed ?
I can give it a go and compare our results.

7

:wink: that’s what he used.

2 Likes
8

I have some RPIs but they are doing fine with speedtest-cli. Got 100/38 mbit so no such problem.

Your hc2 is directly connected by cable to the router facing the internet?

9

One device is directly connected to router and another device is connected to network switch.

10

I´ve found similar issue here: https://forum.odroid.com/viewtopic.php?t=40011
But I am not sure if it could be the same problem.

11

root@odroid:~# lsusb -t
/: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
|__ Port 1: Dev 2, If 0, Class=Vendor Specific Class, Driver=r8152, 5000M
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
|__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=uas, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=exynos-ohci/3p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=exynos-ehci/3p, 480M

12

Are you sure you’re not confusing Mbps and MBps? 20 Mbps is around 3 MBps.

13

No. Here is the result of the test.
root@odroid:~# speedtest-cli --simple
Ping: 24.017 ms
Download: 251.42 Mbit/s
Upload: 3.49 Mbit/s

This is another node on slower network (150/10), but with the same issue.
Ping: 25.705 ms
Download: 139.10 Mbit/s
Upload: 2.94 Mbit/s

14

Can you check to see if your cpu limited?

15

Download: 38.01 Mbps
Upload: 51.35 Mbps

man I didn’t expect to get such good speeds, I should a 425/100 Mbps connection soon though !

CPU was only at 30% with 3 nodes running, prometheus and grafana

16

CPU usage is less than 1%.

17

speedtest-cli has this bug on raspberry pi too, the upload speed is uncorrect.
there is a way to make it work properly but i don’t remember it

18

My node is running on HC2 too but I’ve no problem whatsoever with network speed, it runs at near the maximum allowed by my ISP (1000/100 FTTH). Below my results on my HC2:

    Latency:     3.79 ms   (0.28 ms jitter)
   Download:   933.60 Mbps (data used: 1.2 GB)
     Upload:    91.73 Mbps (data used: 74.9 MB)
Packet Loss:     0.0%

I’m using the Ookla version of speedtest and I’ve selected the nearest server hosted on the same ISP network.

19

Speedtest-cli is Ookla version too.

20

I didn’t try it, but that result URL in your post, most likely contains your public IP, which I’d advise against making public, especially on a forum like this where we run containers with open ports. I just watched a video the other day on keeping that type of info as private as possible. Better safe than sorry!

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