I have a 13-inch MacBook Pro with Intel Core 2 Duo 2.4 GHz and 4 GB 1067 Mhz DDR3 RAM. Thanks to its 10h battery life, I usually do not shut it down. I just grab it and go.
However, I have to restart it every couple of days because of memory issues. After a restart, Activity Monitor reports 3GB free memory which is quite enough for me start a VirtualBox image with 2GB memory, which I need for work. With the remaining 1GB, I usually keep Mail and Chrome open all the time. After using it a couple of days, even though I quit all applications, Activity Monitor reports 2GB free memory which is not enough to start my VBox image anymore. Where did 1GB go? Looking at the open processes, there isn't a single process that I can blame.
I have recently upgraded to 10.6.7
and but I do not expect to see a difference. Does anyone have a similar issue? Is there a tool to compare current memory usage of processes with respect to their memory usage after a restart?