While working with VS2005 the other day, I started to notice that things were running a little bit slow. All I had in my solution was 8 projects (4 code projects and 4 unit tests projects. 2 of these projects have 200+ classes), and needless to say, the VB.NET background compiler was going a little bit nuts...
I decided to kill devenv.exe to restore "peace" to my PC. Here's what the graph of memory usage looks like when you kill an application that takes 842 MB of RAM.