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In the Windows Server 2008 R2 Enterprise, are there any restrictions for the CPU usage of the process ? RRS feed

  • Question

  • Hello! I have the follow question to ask.

    In the operate system ,I write a multithread program, in order to test the highest CPU usage when the certain number of the thread are concurrent.
    The experimental data is as follow:
    the thread number    the highest usage of CPU  
    5                               16            
    25                              32             
    50                              28          
    55                              32         
    60                              28             
    61                              30        
    62                              32             
    63                              30           
    64                              31  
    100                            30
    500                            29
    1000                          29  

    conclusion:The number of thread is from 25 to 1000, the highest usage of CPU fluctuates between 28 and 32.
    Qusetion: Why not the usage of CPU is higher than 32%?
              In the Windows Server 2008 R2 Enterprise, are there any restrictions for the CPU usage of the process ?
    Tuesday, February 28, 2012 12:59 AM