C# - how to get cpu, memory and disk usage in % as seen in task manager - c#-4.0

Question

Those parameters can be seen in a Task Manager.

Answer 1

The answer maybe a bit huge but it will answer the entire question except for the DISK USAGE part.
Getting the CPU utilization in percentage(%)
Not sure if WMI can be used for this case but i prefer not to use WMI because not all the machines support WMI.I will try to use other classes such as PerformanceCounter or so for the solutions.Here's a sample code that will return the CPU utilization in %
public FinalResult as float;
public async void GetCPUCounter()
{
CounterSample firstValue = cpuCounter.NextSample();
await Task.Delay(900); //delay is required because first call will always return 0
CounterSample secondValue = cpuCounter.NextSample();
FinalResult = CounterSample.Calculate(firstValue, secondValue);
await Task.Delay(900);
GetCPUCounter(); //calling again to get repeated values
}
Now, just use a Windows.Forms.Timer to repeatedly get the cpu utilization.Before that, just call GetCPUCounter() once from anywhere in your code, let's say from Form_load event :
private void Form_load(...)
{
GetCPUCounter();
}
private void mytimer_Tick(....)
{
string cpuUsage = finalresult.ToString() + "%"
}
Getting the memory utilization in percentage(%)
Here's a full class with 2 async methods that will return both memory usage and total memory:
using System;
using System.Diagnostics;
using System.Threading.Tasks;
using Microsoft.VisualBasic.Devices;
public class Memory
{
public int TotalRamInMb;
public int TotalRamInGb;
public double UsedRam;
public int UsedRamPercentage;
public string GetTotalRam()
{
var CI = new ComputerInfo();
var mem = ulong.Parse(CI.TotalPhysicalMemory.ToString());
int Mb = Convert.ToInt16(mem / (double)(1024 * 1024));
TotalRamInMb = Mb;
if (Mb.ToString().Length <= 3)
return Mb.ToString() + " MB physical memory";
else
{
return (Convert.ToInt16(Mb / (double)1024)).ToString() + " GB physical memory";
TotalRamInGb = Convert.ToInt16(Mb / (double)1024);
}
}
public async void GetUsedRam()
{
double URam;
Process[] allProc = Process.GetProcesses();
foreach (var proc in allProc)
URam += ((proc.PrivateMemorySize64) / (double)(1024 * 1024));
UsedRam = URam;
UsedRamPercentage = (UsedRam * 100) / TotalRamInMb;
await Task.Delay(900);
GetUsedRam();
}
}
Get the values from the variables such as UsedRam, UsedRamPercentage,TotalRamInMb and so... And make sure to call GetUsedRam() once like we did with GetCPUCounter and then use a Forms.Timer to repeatedly get the values from the above variables.
I will update the answer soon by adding Disk usage retrieval process . Cheers!