How is a CPU cache used to increase performance of the Opera

How is a CPU cache used to increase performance of the Operating System? WHo controls the usage, the operating system or the CPU? Explain

Solution

A cpu cache requirs small amount of memory which it uses directly from central processing unit. this cpu cache is very fast when compared to ram because it equally runs with the cpu speed rather than bus speed. there is point behind the cache if once the data is requested with one request there are more chances to request again and again. placing the data in cpu cache makes it faster. soo this way performance can be improved.

The control unit (CU) is a component of a computer\'s central processing unit (CPU) that directs operation of the processor. It tells the computer\'s memory, arithmetic/logic unit and input and output devices how to respond to a program\'s instructions. It directs the operation of the other units by providing timing and control signals