synonymprocessing speed (Performance index of computer system) generally refers to operation speed
Computing speed;Operation speed: operation speed is a measureComputer performanceAn important indicator of.Generally speaking, computer operation speed (average operation speed)Word lengthAverage execution speed of fixed point instructionsMIPS(Million Instructions Per Second)machine languageNumber of instructions.This is an indicator of CPU speed.Like aIntelThe 80386 computer can process 3 million to 5 million machine language instructions per second, that is, we can say that the 80386 is 3 to 5 MIPSCPU。MIPS is only an indicator of CPU performance.It refers to the number of instructions that can be executed per second. It is generally described as "million instructions/second".microcomputerGenerally, the dominant frequency is used to describe the operation speed. The higher the dominant frequency, the faster the operation speed.
Chinese name
Operation speed
Foreign name
Computing speed
Status
measurecomputerAn important indicator of performance
Interpretation
Number of instructions that can be executed per second
Born in 1946ENIACIt can only perform 300 operations or 5000 additions per second, which is a real computing machine.Over the next 50 years,computer technologyThe level is changing with each passing day. The computing speed is getting faster and faster. The number of operations per second has exceeded one hundred million or one trillion times.One set built by NEC for the Japanese Earth Simulation Center in 2002“Earth simulator”, per secondFloating point operationThe number of times is close to 36 trillion.Ten years later, on June 18, 2012SupercomputerThe organization announced the latest list of the world's top 500 supercomputers, American supercomputers（Supercomputer "Sequoia"）Regain the No. 1 throne in the world.Sequoia's continuous computing test has reached 16324 trillion times per second, and its peak computing speed has reached 20132 trillion times per second, which is beyond the reach of other computers.
"Operation speed" is an evaluationComputer performanceThis is an important indicator of how many instructions are executed per second.The execution time of various instructions in the computer is different, and the use of various instructionsFrequencyThey are also different.The computing speed of a computer is related to many factors, and there are different ways to measure the computing speed.
In order to accurately describe the computing speed of the computer, the "equivalent command speed" is generally usedDescriptive method”。According to the frequency of different types of instructions in use, multiply by different coefficients to obtain statisticsaverage value, the operation speed is the average operation speed.
Overview of China
Announce
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On June 17, 2013, the international top 500 organization announced the latest globalSupercomputerTop 500 ranking list, ChinaNational University of Defense Science and TechnologyDeveloped“Tianhe No.2”With 3386 billion times per secondFloating point operationSpeed, becoming the fastest supercomputer in the world.Two and a half years later, China's supercomputer computing speed returned to the top of the world.
