Get specific application memory usage

Question

I need to get the memory and CPU usage of an application in c#, with the code below (using PerformanceCounter) did not get the same Task Manager value from Windows.

PerformanceCounter cpu;
PerformanceCounter ram;

cpu = new PerformanceCounter("Process", "% Processor Time", "Servidor - estoque", true);
ram = new PerformanceCounter("Process", "Private Bytes", "Servidor - estoque", true);

int Cpu = Convert.ToInt32(cpu.NextValue());
int Ram = Convert.ToInt32(ram.NextValue());


CPU.Value = Cpu;
RAM.Value = (Ram/1024/1024);

How do I make the spent value of memory and CPU of a given application to be the same demonstrated in Task Manager?

Answer 1

If you want to get the memory of another process, of which you know the PID, you can use GetProcessById:

var mem = System.Diagnostics.Process.GetProcessById(1234).PrivateMemorySize64; // valor em bytes

On the other hand, if you know the name of the process, you can use GetProcessesByName. Bear in mind that GetProcessByName returns a array of processes (several different processes can share the same name (e.g Chrome)). That said, you can print the memory of the different processes so:

foreach(var proc in System.Diagnostics.Process.GetProcessesByName("nome")) 
{
    Console.WriteLine(proc.PrivateMemorySize64);
}

For the values you want to obtain, see here a complete list of properties made available by the object Process.

Answer 2

I’m not sure, but I believe you should use "Processor Information" instead of "Process" in the first parameter:

cpu = new PerformanceCounter("Processor Information", "% Processor Time", "Servidor - estoque", true);
ram = new PerformanceCounter("Processor Information", "Private Bytes", "Servidor - estoque", true);

Answer 3

For private memory consumption use the method GetCurrentProcess() to reference the current process; the property value PrivateMemorySize64 will indicate the size in bytes.

A oneliner would be so:

var tamanhoEmBytes = System.Diagnostics.Process.GetCurrentProcess().PrivateMemorySize64;