computer user who does not know what the words mean "CPU usage" does not control the processes taking place in the operating system.The meaning behind the term, is quite simple.A man who does not know what the CPU usage is like a sailor went on a long voyage, having learned only the rules helm.The slightest fault entailed stopping the engine, and the ship will be at the mercy of the waves, but the reason may be banal.
What does "CPU usage"?As you know, any program is a course of action, a kind of instruction that performs the central processing unit (CPU).The term "performing" means that the computing nodes are utilized, the inner blocks of this great chip transistors.That is, the processor does some work.The more complex the task set, the more units are connected to address it.If the use of all available blocks, we can say that at this time the CPU load is 100%, which, however, is obvious.That is, the value of 100 - this is the limit, as the lower boundary is limited to 1-5%.When the operating system is loaded 0% principle can not be, although the emergence of multi-core processor models enables a completely new way to look at the distribution of the load between the nuclei.If the CPU usage jumps, then worry about it not worth it - it should be changed periodically.
load amount depends on:
- complexity of the task.Here everything is clear: the more you want to make the action, the more computing power is used;
- CPU performance.People with experience remember that before watching the film, compressed in a simple format mpeg, processor loads by almost 100%.Now the same film, launched on the same player, but new models of the CPU will take no more than ten percent of the CPU time.This is easily explained by drawing an analogy: a child carrying a subject weighing 10 kg will apply to the task all his strength, but an adult will take the goods, "one left."That is, the loading depends on the power;
- optimization program.Any problem can be solved in different ways: the smaller the required intermediate steps, the less loading.
requires special attention CPU utilization 100. Windows 7 allows you to see the current value in several ways.The easiest - through an integrated system in the Task Manager.Moving the mouse over the taskbar (the strip at the bottom of the screen), press the right button and run the aforementioned manager.There are following in the "Processes" tab.In the column "image name" is displayed visible processes executed by a processor in reality.Opposite the column "Memory", "description", "User" and "CPU".Last just shows the amount of downloads for each process - it is evident that it is CPU-intensive work.For the current models 100% loading is possible with complex calculations, conversion of multimedia streams, archiving and so forth.
100% loading can also occur due to the abnormal situation.For example, sometimes running program for one reason or another "hang" - does not respond to button presses, and in Task Manager you can see that while it fully takes CPU resources.Carried out at the time the calculations are fixated, that is, they do not have a solution, hence the crash.It is necessary to highlight the process and complete it with the button.A more flexible program offers «procexp» - is a powerful analogue of the Task Manager.
If whenever the computer some program creates a 100% load, it must be removed.Some viruses behave this way, it is useful to check your computer anti-virus application.
