I also have this problem, Ubuntu 14.04 64-bit, Unity, under a VirtualBox instance. Most of the time it runs acceptable, but when another process is running (which updates the screen, like a simple timer on PgAdmin3 while running a query), the memory+cpu usage goes through the roof.
I also have this problem, Ubuntu 14.04 64-bit, Unity, under a VirtualBox instance. Most of the time it runs acceptable, but when another process is running (which updates the screen, like a simple timer on PgAdmin3 while running a query), the memory+cpu usage goes through the roof.