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微处理器是计算机心脏CPU所用的器件,它的性能直接决定计算机的性能。因此需要有简单明了的指标用以表示其性能。80年代最常用的指标是MIPS,它表示每秒钟该微处理器能执行多少百万条指令。这是在一定条件下,运行一套名为“Dhrystone”的标准测试程序,根据其运行时间算出来的。由于计算机性能不断提高,系统配备发生巨大变化。到了90年代,用MIPS表示性能已经不够可靠,因此在不少情况下它成了没有多大 意义的性能指标。 90年代美国的厂家、大学、研究机构成立了SPEC(标准性能评价协会)。SPEC于1992年公布了
Microprocessor is the heart of the computer CPU used by the device, its performance directly determines the performance of the computer. Therefore, simple and clear indicators are needed to indicate their performance. The most commonly used metric of the 1980s was MIPS, which indicates how many million instructions the microprocessor can execute per second. This is under certain conditions, run a standard test program called “Dhrystone”, calculated according to its running time. Due to the continuous improvement of computer performance, great changes have taken place in system equipment. By the 1990s, performance was not reliable enough with MIPS, so in many cases it made little sense. 90’s American manufacturers, universities, research institutes set up SPEC (Standard Performance Evaluation Association). SPEC was released in 1992