dmips

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dmips

DMIPS:Dhrystone Million Instructions executed Per Second ：主要用于测整数计算能力。其中：MIPS: Million Instructions executed Per Second,每秒百万条指令,用来计算同一秒内系统的处理能力，即每秒执行了多少百万条指令。　　

 

D是Dhrystone的缩写，他表示了在Dhrystone这样一种测试方法下的MIPS，Dhrystone是一种整数运算测试程序。　　

下面是在FOLDOC上的解释：　　

 

Dhrystone　　

A short synthetic benchmark program by Reinhold Weicker [e-mail], [e-mail], intended to be representative of system (integer) programming. It is available in ADA, Pascal and C.The current version is Dhrystone 2.1. The author says, "Relying on MIPS V1.1 (the result of V1.1) numbers can be hazardous to your professional health." Due to its small size, the memory system outside the cache is not tested. Compilers can too easily optimise for Dhrystone. String operations are somewhat over-represented.

(2002-03-26)　　(c) Copyright 1993 by Denis Howe　　

 

例如：一个处理器达到 200 DMIPS的性能 是指：这个处理器测整数计算能力为(200*100万)条指令/秒。

 

 

Wikipedia：http://en.wikipedia.org/wiki/Dhrystone