Trying to understand Task Manager's PF Usage Graph
Posted on 2006-06-23
In Windows Task Manager, I had always thought, or assumed, that the graphs under the "Performance" tab were for Processor and Memory usage. However, yesterday I noticed that graph for memory usage actually says PF or Page File Usage. My understanding of the page file is that Windows creates a page file on the hard disk to act as virtual memory once the physical memory is all used up. The graph doesn't say "memory usage history", so am I to understand that this graph is actually showing how much virtual memory/page file/hard disk memory is being used? The strange thing is, I have 1 GB of RAM on my machine, and even when I boot up the computer and have nothing running, the graph shows a few hundred MB's of usage in the page file. Does that mean my 1GB of physical memory is completely used up and the computer is already tapping into the page file for extra memory???
Is there a way to see a graph of the PHYSICAL memory somewhere? I can't beleive that just running windows, and nothing else, will eat up my entire 1GB of physical memory. Since that is probably not the case, why would windows not use the physical memory first? Since physical memory is so fast, and hard drive/page file is so slow, I don't want my computer to ever touch the page file. I would like to evaluate my physical memory usage better so if the computer does access the page file, I would rather just add more physical memory.