Question About Multi-Flash Performance on Jetson Xavier

Robotics & Edge Computing Jetson Systems Jetson Xavier NX
1

Hi,

I have been reviewing several discussions about multi-flash support on Jetson Xavier devices, and I would like to ask for some clarification.

I saw a topic where users mentioned flashing multiple Xavier boards in parallel, and I am trying to understand the real performance improvement

Currently, I am flashing 3 Xavier devices at the same time, but the total flashing time is essentially tripled. I haven’t been able to

So I would

  1. Does multi-flash actually reduce the flashing time per device in pra

  2. If yes, what flashing time are other users achie

  3. Are there recommended configurations (USB3 hubs, host PC specs, JetPack/L4T versions, etc.) to optimize parallel flash

  4. Are there any known limitations when flashing multiple Xavier bo

I want to ensure that I’m using the correct method and that multi-flash should indeed bring performance be

Thank you very much for your support!

3

Hi,

Please provide your multi flash commands for us to review.

Thanks

4

My multi-flash commands are as follows:

  1. Create massflash image (without flashing immediately, using USB0 network):
sudo ./tools/kernel_flash/l4t_initrd_flash.sh --no-flash --network usb0 --massflash 5 jetson-xavier-nx-devkit-emmc mmcblk0p1
  1. Flash devices with high I/O priority, keeping the current state:
sudo ionice -c 1 -n 0 ./tools/kernel_flash/l4t_initrd_flash.sh --network usb0 --flash-only --massflash 5 --keep
  1. Flash again or reset devices if needed:
sudo ionice -c 1 -n 0 ./tools/kernel_flash/l4t_initrd_flash.sh --network usb0 --flash-only --massflash 5 --reseu
5

Hi,

Please share the flashing and serial console logs for us to review.

Also, explain how you connected three devices to the host PC.

Thanks

6

Hi,

I connected all three devices on a single USB bus.

Attached is the flashing and serial console log for one of the devices. The other three devices are similar, but they flash very slowly compared to this one.

Please let me know if you need additional details.

Thanks,
Tuan

flash_1-9_0_20251203-155219.log (39.8 KB)

7

There is no update from you for a period, assuming this is not an issue anymore.
Hence, we are closing this topic. If need further support, please open a new one.
Thanks ~1217

Hi,

Please record the serial console log as below topic show:

Thanks