We are faced with the problem that the transfer speeds of a hard disk connected via USB3.0 do not achieve sufficient results on the PX2.
nvidia drive PX2 AutoChauffeur (P2379)
Samsung MU-PA2T0B/EU Portable SSD T5 2TB + factory USB Typ C to A adapter
Ubtuntu 16.04 LTS
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
The following drivers
Class=root_hub, Driver=tegra-xusb/4p, 5000M
product: xHCI Host Controller
vensor: Linux 4.9.38-rt25-tegra xhci-hcd
The following Testsetup were tested:
Driveworks Release Notes:
https://developer.download.nvidia.com/driveworks/installers/driveinstall/secure/126.96.36.199aL/NVIDIA_DriveWorks_SDK_Release_Notes_0.6.67.pdf?3B9e5mvCpuZfoyvrHOB8_vcd3d668GmUsnsMSwtxnH4ID8YaDeDYKRQK5n1QlKGEkX3lKYPZ79GzST8s72UyjVWvUoPLGMmhv56sHJV7j6csVk-M0nqcYnh9jAqT-kYtwi8Uno0wnyZUD-9N6EEDNPO0UyO5363pUjnCSfDmsMfOBUL9JVYSrpwh5gs77ftGT2Df9zXUrNRXh935xttt0MY 2.18 NEW SETTINGS FOR MAXIMUM USB PERFORMANCE – Seite 22
The maximum transfer rate achieved was 240 MB/s for copying the driveworkssdk to the SSD, and 130MB/s for measuring with “dd”, with a minimum transfer rate of 400-500MB/s in each of these sources.
Several formatting formats were also tested and did not lead to any improvement.
On a USB3.0-enabled laptop with Ubtunu 16.04 LTS with the latest drivers/upgrades, however, the desired 500MB/s could be consistently achieved.
Please let us know if there are updates for new USB drivers, where they will be provided and how to install them. An apt-get update && upgrade was not executed at any time and should not be necessary.
Thank you and best regards