I don't know if there's any instruction that could make the CPU idle. And I also notice that there's a System Idle Process that use 99% of the CPU when the CPU usage is shown to be 0%. What is this System Idle Process? If it is using 99% of the CPU, why is the CPU temperature lower than other process taking 99% of CPU?
Allow me to put it a little further, how is the usage percentage of CPU is calculated?
Maybe this is a dumb question. Hope the geeks here won't feel tedious.... ;)
It means that all the processes are stuck waiting... they are "blocked" on thing like user input, network card, hard-drive data, or even ram.
Basically it means that the threads are all waiting for the operating system to let them run again. it does this using something called an interrupt. Some interupts are timed, which is why your clock changes every second or minute, but your computer doesn't have to keep track of it 100% of the time.