Get RAM and CPU usage in C#

Tweet

Get Cpu and Ram Usage by kernel132.dll in c# How to get CPU percentage ?

1. Step 1: include namespace in class file

    using System;
    using System.Diagnostics;
    using System.Runtime.InteropServices;
    using System.IO;
   

2. Step 2: Declare performance counter and other variables and we just get average of cpu 5 times with difference of 5 seconds

    Public string GetCpuPercentage()
     {
      PerformanceCounter cpuCounter;
      double cpuUsage = 0;
      int totalCpuUsage = 0;
      double returnLoopCount = 0;
   
      cpuCounter = new PerformanceCounter();
      cpuCounter.CategoryName = "Processor";
      cpuCounter.CounterName = "% Processor Time";
      cpuCounter.InstanceName = "_Total";
      for (int i = 0; i < 5; i++)
      {
      cpuUsage += cpuCounter.NextValue();
      System.Threading.Thread.Sleep(1000);
      }
      totalCpuUsage = Convert.ToInt32(Math.Ceiling(cpuUsage / 5));
      return totalCpuUsage;
     }
   

3. Step 3:Declare performance counter and other variables and we just get average of RAM memory usage by using 'Kernel32.dll'

    public string GetRamPercentage()
     {
         PerformanceCounter ramCounter;
              double ramUsage = 0;
              int TotalRamMemory = 0;
              int AvailableRamMemory = 0;
              int UsedRamMemory = 0;
              int RamUsagePercentage = 0;
              double returnLoopCount = 0;
              MEMORYSTATUSEX statEX = new MEMORYSTATUSEX();
              statEX.dwLength = (uint)Marshal.SizeOf(typeof(MEMORYSTATUSEX));
              GlobalMemoryStatusEx(ref statEX);
   
              double ram = (double)statEX.ullTotalPhys;
              //float ram = (float)stat.TotalPhysical;
              ram /= 1024;
              ram /= 1024;
   
              TotalRamMemory = Convert.ToInt32(Math.Round(ram, 0));
              ramCounter = new PerformanceCounter("Memory", "Available MBytes");
              for (int i = 0; i < 5; i++)
              {
                  ramUsage += ramCounter.NextValue();
                  System.Threading.Thread.Sleep(1000);
              }
              AvailableRamMemory = Convert.ToInt32(Math.Round((ramUsage / 5), 0));
              UsedRamMemory = TotalRamMemory - AvailableRamMemory;
              RamUsagePercentage = ((UsedRamMemory * 100) / TotalRamMemory);
   
      return RamUsagePercentage;
           
     }
   
        [return: MarshalAs(UnmanagedType.Bool)]
        [DllImport("Kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        internal static extern bool GlobalMemoryStatusEx(ref MEMORYSTATUSEX lpBuffer);
   
    [StructLayout(LayoutKind.Sequential)]
    internal struct MEMORYSTATUSEX
     {
          internal uint dwLength;
          internal uint dwMemoryLoad;
          internal ulong ullTotalPhys;
          internal ulong ullAvailPhys;
          internal ulong ullTotalPageFile;
          internal ulong ullAvailPageFile;
          internal ulong ullTotalVirtual;
          internal ulong ullAvailVirtual;
          internal ulong ullAvailExtendedVirtual;
     }
   
   

Download