In defence of swap: common misconceptions
In defence of swap: common misconceptions This post is also available in Japanese, Chinese, and Russian. tl;dr: Having swap is a reasonably important part of a well functioning system. Without it, sane memory management becomes harder to achieve. Swap is not generally about getting emergency memory, it's about making memory reclamation egalitarian and efficient. In fact, using it as "emergency memory" is generally actively harmful. Disabling swap does not prevent disk I/O from becoming a prob