jtop

Start

You can run the jtop simple using a simple command jtop

YES! Sudo is not more required!

nvidia@jetson-xavier-nx:~/$ jtop

Other options are available with -h option:

nvidia@jetson-xavier-nx:~/$ jtop -h
usage: jtop [-h] [--no-warnings] [--restore] [--loop] [-r REFRESH] [-p PAGE]
            [-v]

jtop is system monitoring utility and runs on terminal

optional arguments:
  -h, --help            show this help message and exit
  --no-warnings         Do not show warnings (default: False)
  --restore             Reset Jetson configuration (default: False)
  --loop                Automatically switch page every 5s (default: False)
  -r REFRESH, --refresh REFRESH
                        refresh interval (default: 500)
  -p PAGE, --page PAGE  Open fix page (default: 1)
  -v, --version         show program's version number and exit

Pages

jtop have four different pages to control your NVIDIA Jetson:

ALL Are collected all information about your board: CPUs status, Memory, GPU, disk, fan and all status about jetson_clocks, NVPmodel and other
GPU A real time GPU history about your NVIDIA Jetson
CPU A real time CPU plot of NVIDIA Jetson
MEM A real time Memory chart and swap monitor
CTRL Enable/Disable jetson_clocks, nvpmodel or fan directly from here
INFO All information about libraries, CUDA, Serial Number, interfaces, ...

Controls

To control the your NVIDIA Jetson are available this keyboard commands:

In page 3 MEM:

c Clear cache
h Enable/Disable extra swap
+ and - Increase and decrease swap size

In page 4 CTRL:

a Start/Stop jetson_clocks service (Note: jetson_clocks start only after 60s from up time)
e Enable/Disable jetson_clocks on board boot
+ and - Increase and decrease the NVPmodel
f Manual/jetson_clocks mode for your fan
p and m Increase and decrease the Fan speed