@qwertydotplus@mastodon.social
2026-09-20 08:41 UTC
@buckfiftyseven@mastodon.social sure, but if you have applications in the background that aren't actively using the data they have in memory (think, for example, the browser with tabs you haven't touched in the last few minutes, or the webserver that hasn't received any proper requests in the past hour), you want those pages to go into swap, so you can provide more memory to the things you're actually doing at the moment.
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@qwertydotplus@mastodon.social 2026-09-20 08:51
i'm pretty liberal with my swap usage, since i do large scale testing with VMs and run several services in containers. it ends up being much more efficient to let things start up and have them ready to load out of swap, rather than start them from scratch on demand. for my particular use case, this warrants having 64 GiB of SSD swap space in addition to the 64 GiB of RAM in my system, because having any of that RAM wasted on VMs that aren't running ends up making a given run take ~40% longer.