[RESOLVED] 70KB app takes 10MB of RAM?

Was just wondering, why would a 70KB application takes almost 10MB of RAM? All the application does is that it shows the amount fo FREE RAM my computer has. It has 2 pictures, an icon and 2 labels. The amount remains the same, it doesn't increase with the passing of time, I just think such a small application shouldn't eat that much memory.

All code is below:

vb.net Code:

Public Class Form1
 
    Dim drag As Boolean
    Dim mousex, mousey As Integer
 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
 
        Me.SetDesktopLocation(My.Computer.Screen.Bounds.Width * 0.869, My.Computer.Screen.Bounds.Height * 0.5)
 
        My.Computer.Registry.LocalMachine.OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\Run", True).SetValue(Application.ProductName, Application.ExecutablePath)
 
        Timer1.Start()
 
    End Sub
 
    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
 
        Label1.Text = My.Computer.Info.AvailablePhysicalMemory / (1024 * 1024)
 
        Dim FreeRAM As Double = Val(Label1.Text)
        FreeRAM = Math.Round(FreeRAM, 0)
        Label1.Text = FreeRAM & " MB"
 
    End Sub
 
    Private Sub Form1_MouseMove(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseMove
 
        If drag Then
 
            Me.Top = Windows.Forms.Cursor.Position.Y - mousey
 
            Me.Left = Windows.Forms.Cursor.Position.X - mousex
 
        End If
    End Sub
 
    Private Sub Form1_MouseDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseDown
 
        drag = True
 
        mousex = Windows.Forms.Cursor.Position.X - Me.Left
 
        mousey = Windows.Forms.Cursor.Position.Y - Me.Top
 
    End Sub
 
    Private Sub Form1_MouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseClick
     
   drag = False
     
   If e.Button = MouseButtons.Right Then
          
  Form2.Show()
      
  End If
 
    End Sub
 
    Private Sub PictureBox1_MouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseClick
     
   Me.Close()
 
    End Sub
 
End Class

The size of your app has nothing to do with how much memory it will take up. Really though, 10K isn't all that bad. I have an app, which has thousands of lines of code and perform a bunch of operations during startup and takes up 15K. But, it runs perfectly.

Even during heavy operation, it doesn't top 25K. So, for an app that is constantly querying data like yours is to only take up 10K, is not that big of a deal.

That 10MB will also include any parts of the .NET framework that are loaded. Memory consumption really isn't as simple as a single number any more (and hasn't been for a looong time)

What you can't see is the thousands of lines of framework code it takes to load a teeny old .NET application. It's irrelevant on modern machines. 10MB is barely a decimal point of a percentage of most peoples' RAM. The rule of thumb these days is don't worry about memory until you've measured a performance problem. Premature optimization is a great evil.

Besides, your method of measuring memory usage isn't very good. You're just looking at the system's free physical memory; if some system service (like Windows Update) starts running, you'll see a drop that has nothing to do with your application.

@Sitten Spynne, I don't want to check my application's RAM, I want to check the overall free RAM in my computer periodically, and it's not like 10MB is too much to me, as I think 4 GB of RAM that I have is more than enough to handle it, but I've seen .Net applications take like 300KB of RAM, and I wonder why mine would take this much, but I guess those lines of framework eat most of the memory as you said.

Some info:

100% clean Forms application: 8,875 mb RAM
Forms application with 256x256 white background BMP image: 9,724 mb RAM
Doublebuffered Forms application with 256x256 white background BMP image: 9,764 mb RAM (almost the same)

Console apps with a do loop
100% clean Console application: 7,424 mb
100% clean Console application w/o references: 4,888 mb

Even the minimalist of apps take up too much memory, since the system has lots of free memory to spend anyways. See it as the OS paying everyone a lot since it has lots to spend, but when in an economical crisis it will scarcely give everyone some.