获取WMI信息的C代码

Question

您如何在c sharp中使用“性能计数器”获取总内存，CPU使用率等WMI信息。

Answer 1

private static PerformanceCounter cpuCounter; 
private static PerformanceCounter memoryCounter; 

[...] 

cpuCounter = new PerformanceCounter 
{ 
    CategoryName = "Processor", 
    CounterName = "% Processor Time", 
    InstanceName = "_Total" 
}; 


memoryCounter = new PerformanceCounter 
{ 
    CategoryName = "Memory", 
    CounterName = "Available Bytes" 
}; 

[...] 

public double CpuUsage 
{ 
    get 
    { 
     lock (lockToken) 
     { 
      return Math.Round(cpuCounter.NextValue(), 2); 
     } 
    } 
} 

public double MemoryUsage 
{ 
    get 
    { 
     lock (lockToken) 
     { 
      return Math.Round(memoryCounter.NextValue()/totalMemory * 100, 2); 
     } 
    } 
    } 

总内存：

using (var searcher = new ManagementObjectSearcher("SELECT totalphysicalmemory FROM Win32_ComputerSystem")) 
     { 
      using (var wmiData = searcher.Get()) 
      { 
       foreach (var mo in wmiData) 
       { 
        totalMemory = long.Parse(mo["totalphysicalmemory"].ToString()); 
       } 
      } 
     } 

为了让你必须自己做一些研究的虚拟内存。