如何检测Windows 64位上的CPU速度？

Question

我从这里找到下面的代码“http://www.boyet.com/Articles/CodeFromInternet.html”。
它以GHz为单位返回CPU的速度，但仅适用于32位Windows。

using System; 
using System.Management; 

namespace CpuSpeed 
{ 
    class Program 
    { 
     static double? GetCpuSpeedInGHz() 
     { 
      double? GHz = null; 
      using (ManagementClass mc = new ManagementClass("Win32_Processor")) 
      { 
       foreach (ManagementObject mo in mc.GetInstances()) 
       { 
        GHz = 0.001 * (UInt32) mo.Properties["CurrentClockSpeed"].Value; 
        break; 
       } 
      } 
      return GHz; 
     } 

     static void Main(string[] args) 
     { 
      Console.WriteLine("The current CPU speed is {0}", (GetCpuSpeedInGHz() ?? -1.0).ToString()); 
      Console.ReadLine(); 
     } 
    } 
} 

我搜索过的64位管理类，但没有成功。
有没有其他方法可以在64位Windows下获得CPU速度？下面

Answer 1

我已经使用基于由Binoj安东尼的回答不仅是第一个将下面的代码返回的速度为每个CPU /核心：

Microsoft.Win32.RegistryKey registrykeyHKLM = Microsoft.Win32.Registry.LocalMachine; 
string cpuPath = @"HARDWARE\DESCRIPTION\System\CentralProcessor"; 
Microsoft.Win32.RegistryKey registrykeyCPUs = registrykeyHKLM.OpenSubKey(cpuPath, false); 
StringBuilder sbCPUDetails = new StringBuilder(); 
int iCPUCount; 
for (iCPUCount = 0; iCPUCount < registrykeyCPUs.SubKeyCount; iCPUCount++) 
{ 
    Microsoft.Win32.RegistryKey registrykeyCPUDetail = registrykeyHKLM.OpenSubKey(cpuPath + "\\" + iCPUCount, false); 
    string sMHz = registrykeyCPUDetail.GetValue("~MHz").ToString(); 
    string sProcessorNameString = registrykeyCPUDetail.GetValue("ProcessorNameString").ToString(); 
    sbCPUDetails.Append(Environment.NewLine + "\t" + string.Format("CPU{0}: {1} MHz for {2}", new object[] { iCPUCount, sMHz, sProcessorNameString })); 
    registrykeyCPUDetail.Close(); 
} 
registrykeyCPUs.Close(); 
registrykeyHKLM.Close(); 
sCPUSpeed = iCPUCount++ + " core(s) found:" + sbCPUDetails.ToString(); 

随时根据您的需求定制它。

Answer 2

代码应该做的伎俩

RegistryKey registrykeyHKLM = Registry.LocalMachine; 
    string keyPath = @"HARDWARE\DESCRIPTION\System\CentralProcessor\0"; 
    RegistryKey registrykeyCPU = registrykeyHKLM.OpenSubKey(keyPath, false); 
    string MHz = registrykeyCPU.GetValue("~MHz").ToString(); 
    string ProcessorNameString = (string)registrykeyCPU.GetValue("ProcessorNameString"); 
    registrykeyCPU.Close(); 
    registrykeyHKLM.Close(); 
    Console.WriteLine("{0} MHz for {1}", MHz, ProcessorNameString); 

Answer 3

Binoj提供的答案的简单版本如下。这将返回CPU的最大时钟速度。请注意，如果您希望机器上的总可用周期数，请将此值乘以Environment.ProcessorCount。

private float GetCpuClockSpeed() 
{ 
    return (int) Registry.GetValue(@"HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0", "~MHz", 0); 
}