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submitted 10 months ago by ExplodeyWolf@lemmy.world to c/linux@lemmy.ml

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

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[-] 7ai@sh.itjust.works 2 points 10 months ago* (last edited 10 months ago)

Zram usually has a very high compression ratio - around 4:1 for lz4 and 6:1 for zstd. You can set zram to 40-50 GB. It will still use less than 1/2 of your ram.

Zram has an option to write poorly compressible data to the disk instead of storing it in the ram. I would split the swap partition - 3 GB for zram writeback and rest for ordinary swap.

[-] ExplodeyWolf@lemmy.world 1 points 10 months ago

Oh, I think I might have thought zram was similar to swap, I didn't realize it takes up ram. Is there a way to see how much ram it's using? What do you think I should set my zram amount to(and how do I change the zram amount, I'm using zram-config)

[-] 7ai@sh.itjust.works 2 points 10 months ago

Zram is basically a compressed swap device located in your ram. You can check the usage by running zramctl.

I would recommend setting mem_limit to 10 GB or disk_size to 40GB and algorithm to lz4.

https://github.com/ecdye/zram-config#example-configuration

[-] ExplodeyWolf@lemmy.world 1 points 10 months ago

Which part is the usage?

[-] ExplodeyWolf@lemmy.world 1 points 10 months ago

https://github.com/ecdye/zram-config#example-configuration

This link says that configuration is stored in a file that doesn't exist, should I make it?

this post was submitted on 02 Sep 2023
24 points (85.3% liked)

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