Whether Opera does it or not I don't know, but in Windows at least you can lock pages in physical memory [1]. It's not really a good general purpose technique,

Whether Opera does it or not I don't know, but in Windows at least you can lock pages in physical memory [1]. It's not really a good general purpose technique, however. [1] http://msdn.microsoft.com/en-us/library/windows/desktop/aa366895(v=vs.85).aspx http://msdn.microsoft.com/en-us/library/windows/desktop/aa36...