一种评测应用程序实际性能开销的方法

Method for evaluating real performance costs of applications

为评测应用程序的性能开销,提出基序列时延度量法。通过选择合理的基准程序,在其中植入若干观察点,在待测应用程序运行前及运行时,分别评测基准程序各观察点的运行时延,可以测量待测应用程序在各种负载下运行时的相对性能开销。现已在Linux上通过可装入内核模块和系统调用截获技术验证了该方法。

A method to evaluate performance cost of applications was Presented based on execution delay of benchmarking-sequence. With well-chosen benchmark programs and well-designed viewpoints planted in them, the real costs of performance of a certain application can be evaluated relatively by calculating the delay of the characteristic viewpoints before and during executing the application under test. Such method was implemented on Linux with techniques of loadable kernel module and system call interception.