High CPU usage

A computer user who does not know what the words "CPU download" means, does not control the processes that occur in the installed operating system. The meaning behind this term is quite simple. A person who does not know what the CPU load is like a sailor who went on a long voyage, having learned only the steering wheel controls. The slightest malfunction, which caused the engine to stop, and the ship will be in the power of the waves, although the reason may be banal.

What does the word "CPU load" mean? As you know, any program is an order of actions, a kind of instruction that is performed by the central processor (CPU). The term "performs" means that the computing nodes, internal blocks of transistors of this large microcircuit are involved. That is, the processor does some work. The more complex the task is, the more units are connected to solve it. If all available blocks are involved, then we can say that at the moment the CPU load is 100%, which, however, is obvious. That is, the value of 100 is the limit, the lower limit is limited to 1-5%. With a loaded operating system, 0% can not be fundamentally, although the appearance of multi-core processor models allows a completely new look at the load distribution between the cores. If the CPU load downloads, then it's not worth worrying about - it should periodically change.

The amount of loading depends on:

• Complexity of the task. Here everything is clear: the more actions are required, the more computational power is used;
• CPU performance. Users with experience remember that earlier when watching a movie compressed into a simple mpeg format, processors were loaded almost under 100%. Now the same movie, launched on the same player, but on new CPU models, will take no more than a dozen percent of CPU time. This can be easily explained by resorting to analogy: a child carrying an object weighing 10 kg will apply all his forces to solve the task, but the adult will transfer the load "with one left". That is, the load depends on the power;
• Optimization of the program. Any problem can be solved in different ways: the less intermediate steps are required, the less loading.

Particular attention requires the CPU 100 load. Windows 7 allows you to see its current value in several ways. The simplest is through the task manager integrated in the system . We move the mouse cursor to the taskbar (the bar at the bottom of the screen), press the right button and start the above-mentioned dispatcher. Here we go to the "Processes" tab. The "Image Name" column displays the visible processes that the processor is currently running. Opposite the columns "Memory", "Description", "User" and "CPU." The latter just shows the amount of load for each process - it is clear what exactly the processor loads with work. For modern models, 100% download is possible with complex calculations, converting multimedia streams, archiving, etc.

A 100% load can also occur due to a freelance situation. For example, sometimes a running program for some reason "hangs up" - does not react to button pressures at all, and in the task manager it can be seen that while it completely takes CPU resources. The calculations performed at this time are looped, that is, there is no solution in them, hence the hanging. You need to select the process and complete it with the appropriate button. More flexible features are provided by the program "procexp" - this is a powerful analogue of the task manager.

If, at each boot of the computer, some program creates a 100% load, then it must be deleted. Some viruses behave in a similar manner, so it is useful to check your computer for an antivirus application.