Question

我尝试将我的程序CPU使用率除以核心。现在我使用PerformanceCounter 并且在0到1之间更改InstanceName我有来自2个核心的数据。

PerformanceCounter pc0 = new PerformanceCounter("Processor", "% Processor Time", "0");
PerformanceCounter pc1 = new PerformanceCounter("Processor", "% Processor Time", "1");

如何获得第3，第4核等的核心使用？

有人可以帮助我吗？

由于

Answer 1

我怀疑你真正问的是“How do I count the number of cores？”。此代码将计算内核数量，然后根据该代码创建性能计数器。

        int coreCount = 0;
        foreach (var item in new System.Management.ManagementObjectSearcher("Select * from Win32_Processor").Get())
        {
            coreCount += int.Parse(item["NumberOfCores"].ToString());
        }

        PerformanceCounter[] pc = new PerformanceCounter[coreCount];

        for (int i = 0; i < coreCount; i++)
        {
            pc[i] = new PerformanceCounter("Processor", "% Processor Time", i.ToString());
            Console.WriteLine(pc[i].CounterName);
        }

Answer 2

之前我没有使用过PerformanceCounter，但这样做有什么问题吗？

PerformanceCounter pc0 = new PerformanceCounter("Processor", "% Processor Time", "0");
PerformanceCounter pc1 = new PerformanceCounter("Processor", "% Processor Time", "1");
PerformanceCounter pc2 = new PerformanceCounter("Processor", "% Processor Time", "2");
PerformanceCounter pc3 = new PerformanceCounter("Processor", "% Processor Time", "3");

Answer 3

这可能是一个老问题，但对于寻找不同解决方案的其他人来说，为什么不使用System.Environment？

    public static List<System.Diagnostics.PerformanceCounter> GetPerformanceCounters()
    {
        List<System.Diagnostics.PerformanceCounter> performanceCounters = new List<System.Diagnostics.PerformanceCounter>();
        int procCount = System.Environment.ProcessorCount;
        for (int i = 0; i < procCount; i++)
        {
            System.Diagnostics.PerformanceCounter pc = new System.Diagnostics.PerformanceCounter("Processor", "% Processor Time", i.ToString());
            performanceCounters.Add(pc);
        }
        return performanceCounters;
    }

编辑：我注意到这只返回逻辑处理器的数量，而不是实际的核心数。

Answer 4

这样的事情也应该适合你的要求

  public List<string> GetServerStatus()
   {
        List<string> cpuStatus = new List<string>();
        ObjectQuery wmicpus = new WqlObjectQuery("SELECT * FROM Win32_Processor");
        ManagementObjectSearcher cpus = new ManagementObjectSearcher(wmicpus);
        try
        {
            int coreCount = 0;
            int totusage = 0;               
            foreach (ManagementObject cpu in cpus.Get())
            {
                //cpuStatus.Add(cpu["DeviceId"] + " = " + cpu["LoadPercentage"]);
                coreCount += 1;
                totusage += Convert.ToInt32(cpu["LoadPercentage"]);
            }
            if (coreCount > 1)
            {
                double ActUtiFloat = totusage / coreCount;
                int ActUti = Convert.ToInt32(Math.Round(ActUtiFloat));
                //Utilisation = ActUti + "%";
                cpuStatus.Add("CPU = " + ActUti);
            }
            else
            {
                cpuStatus.Add("CPU = " + totusage);
            }



        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            cpus.Dispose();
        }            

        return cpuStatus;
    }

Answer 5

foreach (var item in new System.Management.ManagementObjectSearcher("Select NumberOfLogicalProcessors from Win32_Processor").Get())
                {
                    coreCount += int.Parse(item["NumberOfLogicalProcessors"].ToString());
                }

                PerformanceCounter[] pc = new PerformanceCounter[coreCount];

                for (int i = 0; i < coreCount; i++)
                {
                    pc[i] = new PerformanceCounter("Processor", "% Processor Time", i.ToString());

                }

如何获得超过2个内核的CPU使用率？

5 个答案: