Process.WorkingSet Property

Definition

Namespace:

System.Diagnostics

Assemblies:

netstandard.dll, System.Diagnostics.Process.dll

Source:

Process.cs

Caution

Process.WorkingSet has been deprecated because the type of the property can't represent all valid results. Use System.Diagnostics.Process.WorkingSet64 instead.

Gets the associated process's physical memory usage, in bytes.

C#

[System.Obsolete("Process.WorkingSet has been deprecated because the type of the property can't represent all valid results. Use System.Diagnostics.Process.WorkingSet64 instead.")]
public int WorkingSet { get; }

Property Value

Int32

The total amount of physical memory the associated process is using, in bytes.

Attributes

ObsoleteAttribute

Examples

The following example starts an instance of Notepad. The example then retrieves and displays various properties of the associated process. The example detects when the process exits, and displays the process' exit code.

C#

using System;
using System.Diagnostics;
using System.Threading;

namespace ProcessSample
{
    class MyProcessClass
    {
        public static void Main()
        {
            try
            {
                using (Process myProcess = Process.Start("NotePad.exe"))
                {
                    while (!myProcess.HasExited)
                    {
                        Console.WriteLine();

                        Console.WriteLine($"Physical memory usage     : {myProcess.WorkingSet}");
                        Console.WriteLine($"Base priority             : {myProcess.BasePriority}");
                        Console.WriteLine($"Priority class            : {myProcess.PriorityClass}");
                        Console.WriteLine($"User processor time       : {myProcess.UserProcessorTime}");
                        Console.WriteLine($"Privileged processor time : {myProcess.PrivilegedProcessorTime}");
                        Console.WriteLine($"Total processor time      : {myProcess.TotalProcessorTime}");
                        Console.WriteLine($"Process's Name            : {myProcess}");
                        Console.WriteLine("-------------------------------------");

                        if (myProcess.Responding)
                        {
                            Console.WriteLine("Status:  Responding to user interface");
                            myProcess.Refresh();
                        }
                        else
                        {
                            Console.WriteLine("Status:  Not Responding");
                        }

                        Thread.Sleep(1000);
                    }

                    Console.WriteLine();
                    Console.WriteLine($"Process exit code: {myProcess.ExitCode}");
                }
            }
            catch (Exception e)
            {
                Console.WriteLine($"The following exception was raised: {e.Message}");
            }
        }
    }
}

Remarks

The value returned by this property represents the most recently refreshed size of working set memory used by the process, in bytes. To get the most up to date size, you need to call Refresh() method first.

The working set of a process is the set of memory pages currently visible to the process in physical RAM memory. These pages are resident and available for an application to use without triggering a page fault.

The working set includes both shared and private data. The shared data includes the pages that contain all the instructions that the process executes, including the process modules and the system libraries.

Applies to

See also

• MinWorkingSet
• MaxWorkingSet
• PeakWorkingSet
• PeakWorkingSet64
• WorkingSet64