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代码优化,有效使用内存,透视优化技术,对比优化方法,如果你在追求代码效率的最大化,该资源你不能不读.

Fig01_01.doc This diagram illustrates total execution time of each function. 
             At first glance, it might seem that there are three hotspots here.
             In practice, however, this is not the case.
Fig01_02.doc This diagram illustrates net execution time of each function
             (i.e., minus execution time of child functions). As is clearly seen
             from this diagram, the program has only one hotspot. However, it is 
             really very "hot".
Fig01_03.tif VTune profiler Logo
Fig01_04.tif AMD Code Analyst profiler Logo
Fig01_05.tif Help screen with Copyright information displayed by Microsoft Profile.exe 		             profiler supplied along with Visual C++ compiler
Fig01_06.tif Contents of the window displayed by VTune immediately after analyzing 
             an application. In first place, we are interested in the
             contents of the topmost pane, displaying hotspots,
             according to their addresses. The bottom window contains 
             information on relative execution time of all modules
             of the system. Notice that the pswd.exe module
             (labeled by an arrow) doesn't take the leading position, and
             it seems that the lion's share of the execution time is consumed by
             some other module. At first glance, it seems that it doesn't make any sense
             to optimize the pswd.exe module. In practice, however, this
             is not so...
Fig01_07.tif Hierarchy of "hot" functions built by the Call Graph Wizard.
             The color symbolizes the function's "temperature", 
             and the number beside it specifies how many times this function was called
Fig01_08.tif "Temperature" distribution within the Calculate_CRC function
Fig01_09.tif Dynamic analysis of the program allows to determine the "temperature"
             of each machine instruction and explains the reasons of "heating".
Fig01_10.tif The usage of Assembly Coach for optimizing machine command scheduling
Fig01_11.tif Chronology of password cracker optimization
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