20gb ram, 10gb zram, 10gb swap, default values. What should I change?

ExplodeyWolf@lemmy.world to Linux@lemmy.ml – 24 points –

I assume I should get rid of most of the swap. I also read somewhere to increase... swappiness of zram?

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Should I lower swap? How do I change the swappiness?

Have a look at this for info on swappiness. As for your swap, if it's not causing you problems, it can't hurt to have it.

There's some instructions here but basically:

  1. sudo apt install zram-config

  2. append to end of /etc/sysctl.conf:

    vm.swappiness = 180
# disable swap readahead (since using zram swap)
vm.page-cluster = 0

    Can check these have been applied with cat /proc/sys/vm/page-cluster or .../swappiness

Would these settings be the same if I used the same amount of swap?