Samba Performance Orange Pi 3


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Hello,

 

I am using armbian now for some time as a smb server on my Orange Pi 3. It's working but I am not really happy with the performance. I only get write speeds up to 30-40 MB/s.

On netdata I saw that the cpu utilization is very unstable. The writing speed on the hdd is also not constant and oscillating like the cpu utilization.

Samba.png

 

Does anybody have a clue why I have this oscillating cpu utilization and the low samba performance?

Are there any tweaks to improve the performance?

 

Short infos about the used system

  • newest armbian version
  • all devices connected over Gigabit LAN
  • 2,5" USB 3.0 HDD connected on the blue USB port of the orange pi 3
  • HDD currently formatted as NTFS, but I already tried ext4 which made no improvement

 

Best Regards

Stephan

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I now made some tests with Armbian Focal.

Here is the log of this system: http://ix.io/3BR8

The samba performance is the same like with Armbian Buster.

Additionally I tested the perfomance with a USB3 SSD which is formatted as ext4. With a Windows PC and ntfs file system this SSD is capable to read and write about 300MB/s.

With samba i get write speeds of about 60MB/s (the first 2 seconds I have write speeds of 110MB/s). In netdata is the iowait value at about 30% and the SSD utilization constant at 100% while writing.

The read speed is about 90 MB/s.

After that I tested the write speed with the dd command. The SSD achieves 70MB/s and the HDD 77MB/s.

The HDD with ntfs is even faster than the SSD with ext4.

Why is my SSD so slow? I am doing something wrong or is that the performance to expect of the Orange Pi 3?   

 

 

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