Hi Friends,

Today I will tell you about how you can see CPU usage using c#.

For this, we will use System.Diagnostics;

The CPU Usage will include CPU usage(in %) and RAM usage(in MB)

I have written code in a thread and I am executing the thread with 1 second of the interval so that we can get latest CPU and RAM usage.

I have written the following code to get the CPU Usage.

class Program
    {
        //Declare the thread timer.
        private static Timer threadtimer;

        //Declare the PerformanceCounter for CPU and RAM
        private static PerformanceCounter cpuCount;
        private static PerformanceCounter memoryCount;

        static void Main(string[] args)
        {
            //Create the instance of CPU Count
            cpuCount = new PerformanceCounter();

            //Intialize the categoryname,countername and instancename as per format. Don't change the format strings name
            cpuCount.CategoryName = "Processor";
            cpuCount.CounterName = "% Processor Time";
            cpuCount.InstanceName = "_Total";

            //Create the instance of memory count
            memoryCount = new PerformanceCounter("Memory", "Available MBytes");

            //Set up thread to execute the function to get CPU and RAM Usage
            threadtimer = new Timer(x => { GetUsage(); }, null, Timeout.Infinite, Timeout.Infinite);
            //Setup the thread timer
            SetupTimer();

            Console.ReadKey();
        }

        /// <summary>
        /// Get the CPU and RAM Usage
        /// </summary>
        private static void GetUsage()
        {
            Console.WriteLine("Cpu Usage = " + getCpuUsage()+ " RAM Usage = "+ getRAMUsage());
        }

        /// <summary>
        /// Get the latest values for CPU usage everytime thread executes.
        /// </summary>
        /// <returns></returns>
        public static string getCpuUsage()
        {
            return cpuCount.NextValue() + "%";
        }

        /// <summary>
        /// Get RAM usage everytime thread executes
        /// </summary>
        /// <returns></returns>
        public static string getRAMUsage()
        {
            return memoryCount.NextValue() + "MB";
        }

        /// <summary>
        /// Setup thread timer.
        /// </summary>
        private static void SetupTimer()
        {
            DateTime timerRunningTime = DateTime.Now.AddSeconds(1);
            double tickTime = (timerRunningTime - DateTime.Now).TotalSeconds;
            threadtimer.Change(TimeSpan.FromSeconds(tickTime), TimeSpan.FromSeconds(tickTime));
        }
    }

If you have any query. Please mention in comments.

Thanks For Reading

Happy Coding!!!