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This article introduces to you what is the specific unit of computer computing speed, the content is very detailed, interested friends can refer to, hope to be helpful to you.

Operating environment: windows7 system, Dell G3 computer.

The unit of computer speed is "MIPS".

Operation speed: operation speed is an important index to measure the performance of computer. Commonly known as computer operation speed (average operation speed), acronym for average execution speed of single-word long fixed-point instructions MIPS (Million Instructions Per Second), millions of machine language instructions processed per second.

MIPS is an indicator of the speed of CPU. For example, an Intel80386 computer can process 3 to 5 million machine language instructions per second, that is, we can say that 80386 is 3 to 5MIPS CPU. MIPS is only a measure of CPU performance. Refers to the number of instructions that can be executed per second, which is generally described as "millions of instructions per second". Microcomputers generally use the main frequency to describe the operation speed, the higher the main frequency, the faster the operation speed.

Nowadays, the frequency of CPU is getting higher and higher, and it is pipelined, superscalar and multi-core. It is no longer scientific to measure computer speed by clock frequency, but it is relatively reasonable to use MIPS to measure computer speed. MIPS is the rate at which instructions are executed, which specifies that performance is inversely proportional to execution time. The faster the computer, the higher the MIPS value.

The recommended maximum operating frequency of S3C44B0X with ARM7 as its kernel is 66MHz. According to the technical data provided by ARM Company, the computing speed of Cortex A9 CPU can be calculated according to the following formula: MIPS=0.9 × MHz. From this, it can be obtained that the maximum operating speed of the old Arm 7 series S3C44B0X is about 0.9 × 66MHz=59.4MIPS. The 51 single chip microcomputer of 6m usually takes 12 or 24 clock cycles to complete one instruction, and the multiplication and division instructions need 48 clock cycles. In this way, I preliminarily estimate that the operation speed of 6m 51 single-chip microcomputer should be between 0.2~0.5MIPS. It can be seen that there is a huge difference in computing speed between 8-bit and 32-bit computers.

Taking AVR as an example, its data throughput can reach 1MIPS/MHz, that is, the oscillation frequency of 1MHz can reach 1MIPS.

To sum up, using MIPS to measure computer speed is very reasonable, for different cpu, its maximum working frequency is different, data throughput is also different, so it can not be generalized.

On the computer speed of the specific unit is shared here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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