[Nvidia Jetson Xavier] Ftrace plugin function_graph not exist

Hi guys,

I’m trying to find out the latency of the kernel (especially swap handling, such as do_page_fault).
To do that, I tried to use function_graph tracer inside ftrace, but unfortunately inside of xavier only “function nop” tracers are available.
Are there any other ways that I can measure the latency of a specific kernel?
How can I enable the function_graph plugin? (more specifically, I found that I have to change the configuration file to enable the function_graph tracer, but I can’t find where the configuration file is…)


you can find the config in kernel-5.10/arch/arm64/config/tegra_defconfig

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