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来自「浙江大学计算机学院数据结构课程的教学课件」· HTM 代码 · 共 54 行

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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="4"><b>
<font size="5">1.4</font><font color="#FF0033" size="5"> Performance analysis</font>

<font color="#ff0033"><i> criteria</i></font>
   (1) Does the program meet the original specifications of the task?
   (2) Does it work correctly?
   (3) Does the program contain documentation that shows how  to
         use it and how it work?
   (4) Does the program effectively use functions to create  logical 
         units?
   (5) Is program's code readable?

<i><font color="#ff0033">more concrete criteria</font> </i>  (space, running time)
   (6) Does the program effectively use primary and secondary
         storage?
   (7) Is program's running time acceptable for the task?
<br><font color="#996633"><i>performance</i></font><font color="#6666FF"> </font>   
    performance <font color="#ff0033">analysis</font>          ( complexity theory )
    performance <font color="#ff0033">measurement</font> ( machine--dependence running times )
                                            
<i><font color="#996633">complexity</font></i>  (<font color="#ff0033">space</font>, <font color="#ff0033">time</font>)

【<font color="#0000FF">definition</font>】the space complexity of a program is the amount of 
memory that it needs to run to completion.The time complexity of 
 program is the amount of computer time that is need to run to 
completion.

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