程序性能

Doing the Needful Pub Date : 2021-09-23 DOI:10.4324/9780429041280-5

G. Narayana, J. Kantner

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引用次数: 1

摘要

•性能:运行程序所需的内存量和时间。•空间复杂度:运行程序所需的内存量。为什么重要?—在多用户环境下运行—内存是否足够?-估计我们可以运行的最大的程序•时间复杂度:运行一个程序所需的时间。为什么重要?-可能需要提供时间限制。-可能需要提供实时响应-当存在多个替代方案时，使用适当的程序。

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Program Performance

• Performance: Amount of memory and time to run a program. • Space Complexity: amount of memory needed to run a program. Why important? – Running in multiuser environment – Is there enough memory? – Smaller programs can be run with other programs – Estimate the largest program we can run • Time Complexity: Amount of time needed to run a program. Why important? – May need to provide a time limit. – May need to provide a real time response – Use appropriate program when several alternatives exist.

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Doing the Needful

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