About Setting Xavier CPU/ISP/Encoder Frequency

Autonomous Vehicles DRIVE AGX Xavier DRIVE AGX Xavier General
1

Please provide the following info (check/uncheck the boxes after creating this topic):
Software Version
DRIVE OS Linux 5.2.6
DRIVE OS Linux 5.2.0
DRIVE OS Linux 5.2.0 and DriveWorks 3.5
NVIDIA DRIVE™ Software 10.0 (Linux)
NVIDIA DRIVE™ Software 9.0 (Linux)
other DRIVE OS version
other

Target Operating System
Linux
QNX
other

Hardware Platform
NVIDIA DRIVE™ AGX Xavier DevKit (E3550)
NVIDIA DRIVE™ AGX Pegasus DevKit (E3550)
other

SDK Manager Version
1.6.1.8175
1.6.0.8170
other

Host Machine Version
native Ubuntu 18.04
other

Hello,
About frequencies of chips on Xavier board such as CPU, ISP, Encoder, are they running at maximum frequency by default? Is there a way to let them run at higher freqency if not? Is there any documentation about device frequencies and how to set them?

Thanks

2

Dear @leqiang.wang,
Yes. They run at maximum frequency.

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3

Thanks Siva. Is there any documentation that shows exact max/max frequencies, and available frequencies of ISP and NVENC?
I found 3 tables in Jetson Xavier’s documentation about max frequencies, under " Supported Modes and Power Efficiency"
https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/power_management_jetson_xavier.html#wwpID0E0NS0HA
Is one of the tables same as the DRIVE AGX Xavier?
what are the paths under /sys/device that have the device information of ISP and NVENC?

4

Dear @leqiang.wang,
Jetson is different from Drive platform.
Please see /sys/kernel/debug/bpmp/debug/clk/<isp/vic/nvenc>/rate to know the frequency of each accelerator

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