What is the scaling of frequencies?
"Brain" computer is its central processing unit (CPU). During normal operation, the CPU processes all computer operations, allowing programs and operating system to operate. The CPU varies in their speed and efficiency. The primary determinant for the performance of the computer processor is the speed of the CPU unit, which measures the number of basic arithmetic operations - addition, subtraction, multiplication or division - can perform every second. Frequency scale is the most basic way to ECE more power from the processor; Increasing the clock frequency, which is the speed at which the CPU runs, will also increase the performance of the computer.
until recently, with the advent of multi -core processors, the scaling of frequencies was the most basic way to gain additional performance for new processor models. Older processors used speeds below 1.0 GHz to run. Now the processors normally run at a speed of more than 2.0 GHz, with some TOPPINEMG brand 3.0 GHz. The paper is the 3.0 GHz processor "looks" faster than the 2.0 GHz processor but in the actualThe world is determined by the computer's overall performance by an aggregate of all its parts. In other words, if computers of 2.0 GHz and 3.0 GHz contain the same type of memory, the same motherboard, and so on, the weakest link in the chain can "Promenout" computer and prevent it from optimizing all 3.0 GHz.
Although it may seem as if the frequency scaling did not have a ceiling, this is not the case. Increasing the speed of CPU hours increases heat production in the unit; Over time, this additional heat acts to degrade circuits, causing a processor failure or failure. This places a very real ceiling on the maximum speed of commercial processors, limiting the speeds at which processors can be built.
Increasing the performance of CPU in the absence of frequency scaling requires more innovative solutions; CPU manufacturers can no longer "change the volume" to cause more power. For processing these limits, they proposed to manufacturers C of CPU multi -core solutions CPU. Placing more than one CPU core on the chip will double the processor speed. However, unlike frequency scaling, which increases the performance equally across the board, it is built on computer software designers. Specifically, if software designers adjust the program for the use of two or more CPU cores, a special advantage is lost, so frequency scaling is one of the purest ways to increase the performance on the CPU chip.