I have 1GB of RAM, and when I run NetBeans and Firefox, they get about 300MB of RAM. At some point, the system becomes very slow, probably 100 times slower than normal, switching windows (Alt+Tab) becomes a huge task and the computer is practically useless. This is probably the moment when it starts to swap.
- According to images provided, where has all the RAM gone? When I calculate all the processes memory, it is far smaller then 1GB.
- Is it normal for system to become 100 times slower when the RAM is full and using swap space?
On another computer with 4GB of RAM I have no problems.
Update: I added 2GB of RAM, now I have 3GB. Anyone who wants to use heavy apps with 1GB on Unity, I don't think it's going to work. Works fine on an empty desktop :)