this post was submitted on 20 Mar 2024
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    Don't run out of memory (lemmy.dbzer0.com)
    submitted 7 months ago by Sonotsugipaa@lemmy.dbzer0.com to c/linuxmemes@lemmy.world
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    [โ€“] Telodzrum@lemmy.world 13 points 7 months ago (1 children)

    Because it's not what what you think it is and doesn't do what you think it does. https://chrisdown.name/2018/01/02/in-defence-of-swap.html

    [โ€“] Sonotsugipaa@lemmy.dbzer0.com 5 points 7 months ago

    Disabling swap does not prevent disk I/O from becoming a problem under memory contention, it simply shifts the disk I/O thrashing from anonymous pages to file pages

    While the rest of that post matches my understanding of swap (I still think 1GB is next to useless in this case), that summarized point perplexes me.

    What non-special file(s) does the kernel write to and read from, and how does it know how much space to use?