I have two laptops, I’ll call them laptop 1 and laptop 2.
Laptop 1 is my gaming laptop, and laptop 2 is a very low-spec one that I use as a jellyfin server. Here’s the neofetch result for both of them:
Laptop 1
Laptop 2
The problem
On both of them, I copied a 5GB folder from the laptop to my 3.0 usb flash drive, I used this rsync command on each:
rsync -a --progress folder_path destination_folder_path
| Laptop | Average transfer speed |
|---|---|
| Laptop 1 | 9MB/s |
| Laptop 2 | 45MB/s |
How is this possible? The Laptop 1 is way superior than laptop 2. The laptop 1 has an nvme SSD while laptop 2 has an old 320GB HDD, yet the transfer speed difference is insane.
Does KDE affect the folder copying somehow? If I copy a file on the same SSD on laptop 1, the speed reaches more than 400MB/s.
What is going on here?
My guess is that laptop 1 is connected to the HD through USB2 not USB3. Or u r using USB hub
I’m not using a USB hub. How can I confirm that the usb port is indeed a 3.0 one? Is the color blue of the port enough?
It’s hard to be completely sure with USB. I think if you can identify the controller, you should be reasonably sure it’s actually USB 3 (but then you’ve got the various flavours of USB 3).
You can browse the output of lspci which should tell you the capabilities of your controllers. In theory.
No.
Why would the DE impact what rsync is doing?
The speed of file transfer operations can be affected by a variety of things, CPU load, storage device load, temperature, file system, device protocol (USB/PCIE/SATA).
I see. I read briefly about baloo and other kde related things and just started assuming anything I could to try and fix my problem.
But you’re right, KDE should not affect anything about a file transfer, I’ll try posting somewhere else later and remove KDE from my line of thought.
Thanks.
Oh yeah, Baloo can do wierd things. Shouldn’t be related tho.
I’m down to help. You should investigate whether the USB standard being used is different, though both those speeds should be possible whether it’s usb 3 or 2.
I assume the difference is consistent? Same files, same drive, same thing every time?
What’s it rated for? If you use something like hdparm to benchmark it on each laptop, are the results wildly different?
The gnome disks tool also has drive benchmarking if you prefer a GUI.
It’s almost definitely not KDE. But we can’t know what it is with the information you’ve given us. We can speculate, and that’s about it.
