[kwlug-disc] zRAM on older machines?

[William Park]

Yes, my desktop is i3-4170 (Haswell, 4th gen) and 16GB (DDR3).  I have 
entire RAM as zRAM, which I think is the default for CachyOS, because I 
don't remember modifying this setting.

- Never had  OOM.
- No issue with "sleep".  It wakes up on keyboard activity, but not on 
mouse activity.


On 2026-05-25 14:51, Charles M wrote:
> I'm wondering if anyone on the list has been using zRAM on older
> hardware (Intel 3rd to 6th gen)? I was looking into it recently
> thinking it might be beneficial for some of the older systems we
> rebuild in CR. The pitch for it seems to be that it:
>
> Helps reduce wear on SSDs
> Reduces lag & freezing on older systems
> Can improve performance on slower devices (I didn't notice a
> difference in boot times on a 3rd gen with 8GB and a 2.5" SSD in my
> testing)
>
> I was a bit confused when it came to the claims around out of memory
> situations, I saw info that suggested it helped with OOM, and info
> that suggested it contributed to OOM (which seems to be the more
> likely since it's in RAM)
>
> Does enabling zRAM cause issues with systems that are put to sleep?
> What about conflicts with tools like tlp (ThinkPad)?
>
> Does anyone have zRAM configured on their laptop/desktop?
>
> Cheers,
>
> Charles
>
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