Reinstall the os and forgot to install zram and I paid for it
this post was submitted on 15 Aug 2026
253 points (99.2% liked)
linuxmemes
32537 readers
565 users here now
Hint: :q!
Sister communities:
Community rules (click to expand)
1. Follow the site-wide rules
- Instance-wide TOS: https://legal.lemmy.world/tos/
- Lemmy code of conduct: https://join-lemmy.org/docs/code_of_conduct.html
2. Be civil
- Understand the difference between a joke and an insult.
- Do not harrass or attack users for any reason. This includes using blanket terms, like "every user of thing".
- Don't get baited into back-and-forth insults. We are not animals.
- Leave remarks of "peasantry" to the PCMR community. If you dislike an OS/service/application, attack the thing you dislike, not the individuals who use it. Some people may not have a choice.
- Bigotry of any kind will not be tolerated. This is an LGBTQ+-friendly community -- if that is a problem for you, you should leave.
3. Post Linux-related content
- Including Unix and BSD.
- Non-Linux content is acceptable as long as it makes a reference to Linux. For example, the poorly made mockery of
sudoin Windows. - No porn, no politics, no trolling or ragebaiting.
- Don't come looking for advice, this is not the right community.
4. No recent reposts
- Everybody uses Arch btw, can't quit Vim, <loves / tolerates / hates> systemd, and wants to interject for a moment. You can stop now.
5. π¬π§ Language/ΡΠ·ΡΠΊ/Sprache
- This is primarily an English-speaking community. π¬π§π¦πΊπΊπΈ
- Comments written in other languages are allowed.
- The substance of a post should be comprehensible for people who only speak English.
- Titles and post bodies written in other languages will be allowed, but only as long as the above rule is observed.
6. (NEW!) Regarding public figures
We all have our opinions, and certain public figures can be divisive. Keep in mind that this is a community for memes and light-hearted fun, not for airing grievances or leveling accusations. - Keep discussions polite and free of disparagement.
- We are never in possession of all of the facts. Defamatory comments will not be tolerated.
- Discussions that get too heated will be locked and offending comments removed. Β
Please report posts and comments that break these rules!
Important: never execute code or follow advice that you don't understand or can't verify, especially here. The word of the day is credibility. This is a meme community -- even the most helpful comments might just be shitposts that can damage your system. Be aware, be smart, don't remove France.
founded 3 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
But.. Why? If ZRam uses RAM as compressed swap, what advantage does it have over just leaving that RAM available as shared memory? Do you have a specific process that is eating up non-shared? This might be of interest: https://chrisdown.name/2026/03/24/zswap-vs-zram-when-to-use-what.html
You get more ram for very little slow down, that also, would rarely be the bottleneck. For the servers, ram is a constraint, and it's all just selfhosting. I have a Raspberry Pi that I selfhost with, as well as a couple 10 dollar compute instances in the cloud. More ram is much better than the tiny slow down that might occur during compression or decompression. All my services are all still very snappy, even the mailserver. For my work, I bring up large docker sandboxes of services that I need running to test entire systems. In the past, I would just allocate 32GB to a swapfile. ZRam is way faster.
But you also get that with shared memory in zswap, with all the other advantages. I'd really recommend reading the "Architectural differences" in the linked article from Chris Down, as he's way deeper into the kernel code than me, but the biggest problem in a setup like a small memory server is:
If you have a ZRAM device, and it fills up, more recently needed pages end up on the backup disk swap, because ZRAM has no way to move between swaps
Where zswap is built into the kernel memory management layer, so it can automatically decide which pages are cold and put them on disk, while keeping fresh ones in compressed RAM.
I.E. in your use case, zswap is better, not even taking into account all the other details from Chris' article.