EMC frequency - Command line vs GUI

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin Nano
1

Hi,

I would like to ask about inconsistency between:

  • Jetson power GUI application,
  • and information that I can obtain from command line,
    • sudo cat /sys/kernel/nvpmodel_clk_cap/emc
    • sudo jetson_clocks --show
    • Tegra stats

Screenshot from 2024-12-08 08-33-53 - edited
Screenshot from 2024-12-08 08-33-53 - edited1920×1080 248 KB

I am using Jetson Nano Developer Kit, with JetPack 6.0. (before I was using Jetpack 5.1.3 or something, and EMC frequency in Jetson power GUI applications was shown correctly 2133MHz)

Which of those information would be trust worthy? Is it a bug in Jetson power GUI application?

Thank you in advance.

Best,
Bartek

3

Hi,
There is a known issue in Jetpack 6.0GA. Please apply this prebuilt lib:

Jetson/L4T/r36.3.x patches - eLinux.org
[Power] Segmentation fault of nvpmodel service

Or use Jetpack 6.1.

4

Hi DaneLLL,

I followed the link, and downloaded & upgraded nvpmodel. Unfortunately, Jetson power GUI application still shows 204MHz. Do you have other suggestions?

Also, I upgraded my unit to JetPack 6.1.1 and I can see boost on CPU/GPU clocks(Thank you Nvidia). But still EMC on Jetson power GUI is showing 204MHz.

sudo cat /sys/kernel/nvpmodel_clk_cap/emc is showing 3199000000 which seems to have a boost too.

Best,
Bartek