Swap space is used for many other things than just running out of memory. Given the huge number of comments on this post that get it wrong so badly, I'm not goi

Swap space is used for many other things than just running out of memory. Given the huge number of comments on this post that get it wrong so badly, I'm not going to respond to all of them, so please do your own research. The short answer is that not having swap causes the system to run with one hand tied behind its back, since it’s forced to store unused/rarely used stuff in RAM, taking up space that could be used more productively (like disk cache).