to swap or not to swap ?

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https://bbs.archlinux.org – Without a swap partition if your computer runs out of RAM then the kernel will begin to randomly kill process' to free RAM.  As long as every application, especially when all loaded at the same time, will stay within the 4GB RAM of your computer then you do not need a swap partition.  However, if you have a larger hard drive then having one wouldn't hurt at all.  The possible issue is that if you do not set up one when you initially install Arch then it may be complicated to do so later on it you find out that your 4GB RAM is inadequate.I have 4GB of RAM and a 1TB hard (HowTos)