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Linux: *Almost* Always Add Swap Space
- TwoNineFive 8y agoYes it's a tech advert blog post, don't bother. My personal experience is that there are situations where you want to completely disable swap on Linux. Workstations/desktops with large RAM (16GB or more) can see awful swapping when it comes time to close/restart Chromium/Firefox after long periods of use, and I've seen more than one instance where some large-RAM server application which needed to be completely restarted every 24-hours or more. Swap is usually good, but not always.
- LinuxBender 8y agoCounter-point, why swap is almost never required. [1] We don't have swap on over 30k servers. If you must use it, ensure it is encrypted. [1] - https://github.com/ohdns/sysctl_and_thp_test https://github.com/ohdns/sysctl_and_thp_test
- sevensor 8y agoI don't configure my desktop machines with swap. They have a ton of memory relative to my needs. I rarely crack 10%. I could fit all of /usr in ram with gigabytes to spare. If the OOM reaper hits, it's because I really screwed up. That's the kind of thing I want to know right away anyhow.