Linux: Should You Use Twice the Amount of Ram as Swap Space?

see :- http://www.cyberciti.biz/tips/linux-swap-space.html


see:-

http://www.softpanorama.org/Internals/Filesystems/linux_swap_filesystem.shtml
http://www.linux.com/news/software/applications/8208-all-about-linux-swap-space?theme=print