Memory usage during update label with System.Windows.Forms.Timer control

Question

I have a form with label that is updating by System.Windows.Forms.Timer control every 2 seconds. In task manager i see that memory usage is growing even if program is doing nothing(but label is still updating with latest info, that is memory usage for example) Example code for label text:

tlblRam.Text = string.Format("Ram: {0} MB", ConvertBytesToMegabytes(System.Diagnostics.Process.GetCurrentProcess().PrivateMemorySize64).ToString("0.00"));

But if i do force GC to collect the generations- it returns all the memory to some lower state. Also it is done automatically after ~5 minutes of inactive program's work. Does that mean that GC is waiting for its 2 gen cycle and only then collects all the strings that were tlblRam.Text's values?

Answer 1

Does that mean that GC is waiting for its 2 gen cycle and only then collects all the strings that were tlblRam.Text's values?

Basically, Yes. There will probably be some more things claiming and releasing memory in a running Windows app.

More important: Don't worry, there is no problem here. Don't try to 'help' by starting y=the GC manually, you'll only make it worse.