this post was submitted on 06 Jun 2025
395 points (97.4% liked)

linuxmemes

25623 readers
1349 users here now

Hint: :q!


Sister communities:


Community rules (click to expand)

1. Follow the site-wide rules

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 will not be tolerated.
  • 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 sudo in Windows.
  • No porn, no politics, no trolling or ragebaiting.
  • 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. πŸ‡¬πŸ‡§ Language/язык/Sprache
  • This is primarily an English-speaking community. πŸ‡¬πŸ‡§πŸ‡¦πŸ‡ΊπŸ‡ΊπŸ‡Έ
  • 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 figuresWe 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 2 years ago
    MODERATORS
     

    Possibly related:

    screen shot of memory usage by app, showing Firefox using over 18GB of RAM

    I also don't understand why every chat app needs 1GB of RAM to itself.

    top 50 comments
    sorted by: hot top controversial new old
    [–] Obnomus@lemmy.ml 5 points 6 days ago (1 children)

    You can really download more ram if you use cloud storage as swap

    [–] Dave@lemmy.nz 2 points 6 days ago (1 children)

    That sounds like a performant way to run a system!

    [–] Obnomus@lemmy.ml 2 points 5 days ago (1 children)
    [–] Dave@lemmy.nz 1 points 5 days ago (1 children)
    [–] Obnomus@lemmy.ml 2 points 5 days ago
    [–] simop_jo@lemmy.world 2 points 5 days ago (1 children)

    I was running mint with 4gb with steam and signal on background as well as Firefox with 2 tabs open. Not perfect but definitely usable

    [–] Dave@lemmy.nz 2 points 5 days ago

    I traced this back to a particular rogue website. But yeah I think GNOME uses more RAM anyway, then having everything containerised in Bazzite is extra RAM I'm sure. Then having like 5 chat apps, Steam Firefox, etc open was easily eating up my 16GB RAM. Of course more RAM means more is used because unused RAM is wasted RAM, so it's hard to judge one system against another.

    [–] bigboismith@lemmy.world 168 points 1 week ago (2 children)

    Hey, unused memory is wasted memory

    [–] Albbi@lemmy.ca 11 points 1 week ago

    If you got it, flaunt it.

    load more comments (1 replies)
    [–] crt0o@lemm.ee 114 points 1 week ago (4 children)

    Solution: if you only have 4GB ram, nothing can use more than 4GB

    [–] truthfultemporarily@feddit.org 57 points 1 week ago (10 children)

    It absolutely will try, it just gets killed by the oom reaper.

    load more comments (10 replies)
    [–] Dave@lemmy.nz 8 points 1 week ago (5 children)

    I had one stick of 16GB and it was not enough. I was going to get a second stick, but said screw it and got two 32GB (it's a laptop and only has two slots).

    [–] malware@lemmy.zip 8 points 1 week ago (1 children)

    How does that even happen πŸ’€πŸ’€ I have 2x8gb, usually have teams open, Firefox, telegram, a virtual machine with windows 10, a few IDEs and it usually only takes 10-12gb max mostly due to the vm requiring flat 8 gigs

    load more comments (1 replies)
    load more comments (4 replies)
    [–] bobo1900@sopuli.xyz 7 points 1 week ago

    /swapfile joined the chat

    load more comments (1 replies)
    [–] Ozonowsky@lemmy.world 89 points 1 week ago* (last edited 1 week ago) (2 children)

    every chat app might use ~1GB because most of them are electron apps, which all spawn their own instance of chromium

    [–] Jankatarch@lemmy.world 8 points 1 week ago* (last edited 1 week ago)

    I love how out of every single graphics backend option they chose the chromium Chrome is known for not slowing down after 3 tabs.

    load more comments (1 replies)
    [–] miss_demeanour@lemmy.dbzer0.com 82 points 1 week ago* (last edited 1 week ago) (1 children)

    It's already been explained elsewhere, but the cache can be free, as needed - that's how linux works.
    There's 57+ GB available ram, yet.

    [–] Dave@lemmy.nz 27 points 1 week ago (2 children)

    Yip, got that now. I misunderstood, as it's different to Windows, which shows cached memory as free since it's available to apps as needed.

    load more comments (2 replies)
    [–] Jhex@lemmy.world 42 points 1 week ago (9 children)

    many Linux distros are optimized to use as much available RAM as possible, free RAM is wasted RAM

    Most would still run with a lot less anyway

    load more comments (9 replies)
    [–] cloudless@piefed.social 37 points 1 week ago (3 children)

    Does it mean 35.1 GB out of the 44.3 GB is actually cached? Then you have quite low actual RAM usage considering you have 67 GB.

    load more comments (3 replies)
    [–] irelephant@lemmy.dbzer0.com 32 points 1 week ago (13 children)
    load more comments (13 replies)
    [–] Oinks@lemmy.blahaj.zone 29 points 1 week ago* (last edited 1 week ago) (1 children)

    Many people who don't know what they're talking about in this thread. No, used memory does not include cached memory. You can confirm this trivially by running free -m and adding up the numbers (used + cached + free = total). Used memory can not be reclaimed until the process holding it frees it or dies. Not all cached memory can be reclaimed either, which is why the kernel reports an estimate of available memory. That's the number that really matters, because aside from some edges cases that's the number that determines whether you're out of memory or not.

    Anyway the fact that you can't run Linux with 16GB is weird and indicates that some software you are using has a RAM leak (a Firefox extension perhaps?). Firefox will use memory if it's there but it's designed to cope with low memory as well, it just unloads tabs quicker so you have to reload often. There are also extensions that make tab unloading more aggressive, maybe that would help - especially if there's memory pressure from other processes too.

    load more comments (1 replies)
    [–] mvirts@lemmy.world 26 points 1 week ago (2 children)

    Don't be confused by cached ram, be confused by the oom killer activating while you have plenty of swap and for some reason it kills the shell you ran Firefox from.

    If you want to go on a memory allocation adventure try disabling memory overcommit πŸ₯²

    [–] Fizz@lemmy.nz 7 points 1 week ago (2 children)

    If you're out of ram and using swap thats when the oom killer should be killing. Swap is not ram.

    load more comments (2 replies)
    load more comments (1 replies)
    [–] SuperSpruce@lemmy.zip 15 points 1 week ago (6 children)

    I have a memory consumption issue with Ubuntu, because I stupidly set up the system to have 0 swap. This means under high memory pressure, the entire system could suddenly crash.

    To be fair, Windows isn't a shining beacon either because whenever I attempt something very GPU intensive like running local LLMs the GPU overheats in a split second before the fans have time to spin up and the entire system shuts down.

    load more comments (6 replies)
    [–] BuboScandiacus@mander.xyz 14 points 1 week ago (2 children)

    ~19 Gb firefox

    Tf you doing

    [–] Dave@lemmy.nz 7 points 1 week ago (1 children)

    The about:processes page doesn't even add up close to that:

    a screenshot of only the memory column in firefox's about:processes page. This shows firefox's main process using 7GB RAM, a 400MB, a 300MB, and a 200MB process, then other smaller ones under 100MB each. Adding up to perhaps 8 or 9 GB

    [–] BuboScandiacus@mander.xyz 11 points 1 week ago (1 children)

    Then it's just a bug I guess

    Or someone is getting very rich in bitcoin right now

    [–] Dave@lemmy.nz 13 points 1 week ago

    Someone else pointed out cached RAM is shown as used in Linux, so Firefox is probably showing actual usage and the process list probably includes the RAM cached for Firefox.

    load more comments (1 replies)

    oh i see you're also using a single tab for youtube and no other tabs

    [–] Treczoks@lemmy.world 11 points 1 week ago (5 children)

    Most RAM Linux reports as in used is actually used as disc cache to speed up the IO.

    load more comments (5 replies)
    [–] Killer57@lemmy.ca 7 points 1 week ago* (last edited 1 week ago) (8 children)

    18gb is nothing, my Firefox regularly eats 70gb (30gb is the normal load I see after browser restart) 18gb is nothing, my Firefox regularly eats 70gb

    [–] possiblylinux127@lemmy.zip 12 points 1 week ago (1 children)

    What are you doing to poor Firefox?

    load more comments (1 replies)
    [–] Sivecano@lemmy.dbzer0.com 8 points 1 week ago

    How do you do this? I usually have about 2k open tabs and my firefox uses a fraction of that.

    load more comments (6 replies)
    [–] confusedwiseman@lemmy.dbzer0.com 7 points 1 week ago (1 children)

    My first thought was that it was running a windows vm…

    load more comments (1 replies)
    [–] vrighter@discuss.tchncs.de 7 points 1 week ago

    every chat app needs over a gig of ram to itself for "developer productivity"

    load more comments
    view more: next β€Ί