why do we need to set swap space as twice big as our physical memory?
I have been working on computers for quite some time now and realize the importance of virtual memory. I have been assuming that setting this to twice the amount of RAM installed is what is necessary. However, as memory has been growing over the years, I am wondering if this is still true. For example, on my 6 GB RAM system is it best practice to set the virtual memory size to 12 GB? For smaller ram systems, is it worthwhile in performance to set the virtual ram to something even more (i.e. 1GB physical ram and 3GB virtual)?