How to get my machine CPU, RAM & disk details?

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How to get my machine CPU, RAM & Disk details.

Example:

CPU - 50% Used,
RAM - 80% Used,
DISK - 80% Used.

What I have tried:

C#

public static string GetUsedDisk() // This one working fine
        {
            double TotalDiskSize = 0;
            double AvailableDiskSize = 0;
            double UsedDiskSize = 0;
            double UsedDiskSizePercent = 0;
            DriveInfo[] drives = DriveInfo.GetDrives();

            foreach (DriveInfo drive in drives)
            {
                if (drive.IsReady)
                {
                    TotalDiskSize += drive.TotalSize;
                    AvailableDiskSize += drive.AvailableFreeSpace;
                }
            }
            UsedDiskSize = TotalDiskSize - AvailableDiskSize;
            UsedDiskSizePercent = (UsedDiskSize / TotalDiskSize) * 100;
            return String.Format("{0:0.00}", UsedDiskSizePercent);
        }

 public static string GetUsedRAM()// This one working fine
        {
            PerformanceCounter RAMCounter;
            RAMCounter = new PerformanceCounter();
            RAMCounter.CategoryName = "Memory";
            RAMCounter.CounterName = "% Committed Bytes In Use";
            return String.Format("{0:0.00}", RAMCounter.NextValue());
        }

// This one not working It always gives 0% Please Help 
  public static string GetUsedCPU()        {
            PerformanceCounter CPUCounter;
            CPUCounter = new PerformanceCounter();
            CPUCounter.CategoryName = "Processor";
            CPUCounter.CounterName = "% Processor Time";
            CPUCounter.InstanceName = "_Total";
            return String.Format("{0:0.00}", CPUCounter.NextValue());
        }

Please Help This Method GetUsedCPU()

Posted 16-Jan-18 19:21pm

Ramesh Balasubramani

Updated 17-Jan-18 17:21pm

v3

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debasish mishra · Accepted Answer · 2018-01-16T19:42:00

For CPU Usage, use PerformanceCounter CLass from System.Diagnostics.

For example.

PerformanceCounter cpu;
PerformanceCounter ramr;

cpu = new PerformanceCounter();
cpu.CategoryName = "Processor";
cpu.CounterName = "% Processor Time";
cpu.InstanceName = "_Total";

ram = new PerformanceCounter("Memory", "Available MBytes");


public string getCurrentCpuUsage()
{
            cpu.NextValue()+"%";
}

public string getAvailableRAM()
{
            ramCounter.NextValue()+"MB";
}


For Disk usage here is a sample program.

Using System.IO;
using System;

class Info {
    public static void Main() {
        DriveInfo[] drives = DriveInfo.GetDrives();
        foreach (DriveInfo drive in drives) {
            //There are more attributes you can use.
            //Check the MSDN link for a complete example.
            Console.WriteLine(drive.Name);
            if (drive.IsReady) Console.WriteLine(drive.TotalSize);
        }
    }
}

This code may give a compilation issues,So don't copy paste directly.This is an approach written here.You can vote for this solution if it answers your doubt.

Jochen Arndt · Accepted Answer · 2018-01-17T02:40:00

This is an anwser for the updated question where the CPU usage is always zero.

Many PerformanceCounter Class (System.Diagnostics)[^] values depend on two reads. That means after a PerformanceCounter instance has been created, PerformanceCounter.NextValue Method (System.Diagnostics)[^] should be called once after creation ignoring the returned value. Following calls will then return the value for the time between the calls.

So you have to make your CPUCounter a static member of a class (e.g. your app class), initialise it, and call NextValue() once. Then further NextValue() calls should return non zero.

See also the example code of the above MSDN links and this note in the NextValue() documentation:

Quote:
If the calculated value of a counter depends on two counter reads, the first read operation returns 0.0. Resetting the performance counter properties to specify a different counter is equivalent to creating a new performance counter, and the first read operation using the new properties returns 0.0. The recommended delay time between calls to the NextValue method is one second, to allow the counter to perform the next incremental read.

Ramesh Balasubramani · Accepted Answer · 2018-01-17T17:21:00

C#

public static string GetUsedDisk() 
        {
            double TotalDiskSize = 0;
            double AvailableDiskSize = 0;
            double UsedDiskSize = 0;
            double UsedDiskSizePercent = 0;
            DriveInfo[] drives = DriveInfo.GetDrives();

            foreach (DriveInfo drive in drives)
            {
                if (drive.IsReady)
                {
                    TotalDiskSize += drive.TotalSize;
                    AvailableDiskSize += drive.AvailableFreeSpace;
                }
            }
            UsedDiskSize = TotalDiskSize - AvailableDiskSize;
            UsedDiskSizePercent = (UsedDiskSize / TotalDiskSize) * 100;
            return String.Format("{0:0.00}", UsedDiskSizePercent);
        }

 public static string GetUsedRAM()
        {
            PerformanceCounter RAMCounter;
            RAMCounter = new PerformanceCounter();
            RAMCounter.CategoryName = "Memory";
            RAMCounter.CounterName = "% Committed Bytes In Use";
            return String.Format("{0:0.00}", RAMCounter.NextValue());
        }


  public static string GetUsedCPU()        {
            PerformanceCounter CPUCounter;
            CPUCounter = new PerformanceCounter();
            CPUCounter.CategoryName = "Processor";
            CPUCounter.CounterName = "% Processor Time";
            CPUCounter.InstanceName = "_Total";
            CPUCounter.NextValue()
            System.Threading.Thread.Sleep(1000);
            return String.Format("{0:0.00}", CPUCounter.NextValue());
        }

How to get my machine CPU, RAM & disk details?

3 solutions

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