Again: as long as you do not run out of RAM and never hibernates the system, the swap makes no difference. No advantage and no drawback (it does not slow the system, if vm.swappiness is small enough), except the related disk space consumption, typically one or two GB (maybe more if you want to hibernate). It is when you run out out of RAM, for some reason (any reason, e.g., a bug in a program that makes it leak memory in rare circumstances), that you are happy to have a swap.

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