In defence of swap: common misconceptions https://chrisdown.name/2018/01/02/in-defence-of-swap.html
@feld @jpmens Thanks; this is good news. However, even with recent versions of the kernel, I still find swap off to be more usable; ironically, with greatest impact on resource constrained systems, like Raspberry Pi.
I think shoddy memory management practices need to be called out. As the article writes no fewer than twice in bold letters, memory contention is the primary cause for poor performance on both swap-enabled and swap-disabled systems.
@jpmens I tend to set up a 1GB or less swapfile and set zswap.enabled=1 on the kernel command line. lzo/lz4 are quite fast in RAM, and this reduces disk I/O if you ever do have to use it.
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