Almost Always Add Swap Space

haydenjames.io

Don't forget Part 2: https://haydenjames.io/linux-performance-almost-always-add-s...

zram is cool, and I've noticed Fedora uses it out of the box. Much better than regular swap space on a disk.

https://wiki.archlinux.org/title/Improving_performance#zram_...

Interestingly, my 64GB desktop has 50GB available between free and caches, yet has 95MB of swap space used (out of 8GB zram). How can I tell which process is swapped out? Probably something which I haven't ever needed since I've booted the PC.

Some services expect to find swap enabled but normally don't use it (like mysql around 2010), so I wouldn't worry about the 95 MB.

But you can take a look at the smem command:

smem -s swap -r

https://www.cyberciti.biz/faq/linux-which-process-is-using-s...

Modern software are just ridiculously hungry for memory that even many GB is not enough. This is just bad considering that we used to work with only GB of disk. I wish all software designs are frugal in resources.

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