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New Patches For Linux's Zswap Show Major Improvements (www.phoronix.com)
submitted 6 days ago* (last edited 6 days ago) by Die4Ever@retrolemmy.com to c/linux@programming.dev
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The graph is on a logarithmic scale btw

Configuration Before series (ms) With series (ms)
1 vCPU 22.3 (21.6-22.6) 0.97 (0.72-1.4)
8 vCPUs 314 (97-2542) 7.0 (5.0-98)
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[-] victorz@lemmy.world 1 points 5 days ago

Ah, okay. I get it, I think. You're still using the same amount of RAM but you're spending some CPU cycles compressing its contents to make more room.

Can you combine zswap with regular swap, like a swap device or swap file?

[-] Die4Ever@retrolemmy.com 2 points 5 days ago* (last edited 5 days ago)

Zswap always(?) uses a swap file or disk partition. It does a smart job using both compressed memory and disk space as swap

zRam does not use disk. Do not attempt combining zRam with any kind of swap on disk, it's a horrible combination

[-] victorz@lemmy.world 1 points 5 days ago

Oh okay, so zswap actually requires a swap file or device? Or just uses it if available?

[-] Die4Ever@retrolemmy.com 2 points 4 days ago

I think it might require it, but I've never tried it without.

[-] victorz@lemmy.world 1 points 4 days ago

Thanks for all your info, friend. I appreciate it.

this post was submitted on 07 Oct 2026
114 points (100.0% liked)

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