When you design and implement an application which need to allocate memory, create many threads and your process consume a lot of CPU resource at running time. If you don’t manage memory carefully while you are programming, your process will make whole program die or suspend without seeing any useful messages after running time. At that time, you perhaps dont think the reason come from your process because it will not happen immediately at running time, only happen after uncertain times (maybe take 1 hours/ days/ etc.). Therefore, to make sure that you already took care of memory well you use cpuloading utility to check it
bamboo@BBTECHLAB:~$ git clone https://github.com/bbtechlab/cpuloading.git bamboo@BBTECHLAB:~/cpuloading$ tree -L 1 ./ ./ ├── build_date.c ├── cpuloading.c ├── Makefile └── README.md
bamboo@BBTECHLAB:~$ cd ~/cpuloading bamboo@BBTECHLAB:~/cpuloading$ make
bamboo@BBTECHLAB:~/cpuloading$ ./cpuloading 10 ================================================ Start CPU Loading v1.0 application Copyright (c)BBTECH Lab. http://bbtechlab.com!! Build date : Wed Dec 12 18:11:16 +07 2018 Build user : bamboo@BBTECHLAB ================================================ Usage: ./cpu_loading [count] CPU LOAD RUNNING FOR COUNT: 10 COUNT: 1 CPU LOADING: 1 COUNT: 2 CPU LOADING: 1 COUNT: 3 CPU LOADING: 1 COUNT: 4 CPU LOADING: 1 COUNT: 5 CPU LOADING: 0 COUNT: 6 CPU LOADING: 1 COUNT: 7 CPU LOADING: 0 COUNT: 8 CPU LOADING: 1 COUNT: 9 CPU LOADING: 1 COUNT: 10 CPU LOADING: 0 AVERAGE:0.700 MAX:1
If the value of CPU LOADING always increase continuously causes whole program will die when your process running after certain times .