VideoBoard is my Local Qt-Qml application which displays the local video in the app. when running this localapp the cpu usage shown in top command is around156% and cpu usage in Jtop is around 96% and the cpu and gpu usage from jtop is 46% and 16.5 % respectively.(on top of image 1)
which one should i consider the output of the top or jtop for cpu utilization?
how to know the hwdecoder is being used or not?
I can’t answer everything on this, but in a multi-core system some applications add up the percent from each CPU, and thus if one core is at 60% and a second core is at 60%, then it goes above 100% and becomes 120% in the display. Other applications will consider the CPU pool as a whole to be 100%, and if you have a single core in a dual core system, and that one core of two possible cores is at 100%, then it will display 50%. So it might just be the “measurement stick” using different units.
Incidentally, I like htop (“sudo apt-get install htop”), which is a lot like ordinary top. jtop was basically built by one of the Jetson community to include a few things related specifically to Jetsons, and it is possible to consider different kinds of CPU use differently, and so I don’t know exactly what categories of CPU use are included for jtop.
