I have noticed an application I use quite often (Android Studio) is hogging my RAM and making my system slow if I dont close it. I have read up and see there is some kind of bug with it, this is fine I guess.
But when I look at Task Manager its saying 77% of my RAM is used. But Android Studio is using around 1GB and everything else combined looks like less than 2GB to me. So how is that 77%?
Here is screenshot showing the Task Manager, and the System specs. I'm not really great at maths, but I am sure that doesn't add up.
Best Answer
The numbers shown in the Process tab are not the full memory usage of the process. This shows only the private working set which is only a part of the total. You need to see the details tab to see the full working set. But due to memory sharing there will be some double counting and these numbers will be somewhat high.
There are also some substantial users of memory that are not processes, not all of which are shown in Task Manager. This includes the resident portions of the Paged pool, the Non-paged pool, the file cache, and more. The file cache, which can be 500 MB or more, is not shown at all.
Memory usage in any modern operating system is far too complex to be fully accounted for by adding up a column of numbers.