A message for Linux.com registered users: We are in the process of making changes to the Linux forums. Starting Monday, 8/13/18 at 6:00 PM PT, you will be unable to access the forums. They will re-launch as soon as possible on Wednesday, 8/15/18 with new features and improved functionality. Thank you for your patience and stay tuned for the new improved forums.
Troubleshooting, limit speed of USB3 device on USB2 computer.
Since the USB3 memory sticks are really fast I expect they would maximize the speed of the USB2 port (480Mbit/s). I tried two sticks. With Disk Utility I got a sustained read speed of 40Mbyte/s but when I tried the write I only got around 10Mbyte/s. During write the speed frequently went down to very low after starting at 35Mbyte/s. I tried several of the latest distros and the result were the same.
The plan was to try to set a hard limit on the speed to and from the USB3 device. I didnt find any such commands. Could I tunnel the USB traffic trough a simulated network device I then can traffic shape?