I am too. Why not use your ram, you paid for it. Else you're writing to slow files and and caching things. I'd gladly have everything I need in ram if it fits.
What I'm more concerned about is applications releasing ram when I need it back. If I start a game will the browser give back the ram? That's my only concern though
What processes were using all the ram? I'm curious if there was one huge one or if nothing seemed to be the culprit specifically.
yea, absolutely DO NOT combine Zram with regular swap, in fact don't combine any different types of swap, they don't mix
Someone posted this earlier and it’s a good explanation
https://www.linuxatemyram.com/
Here is an Ug level explanation if you want something shorter:
Disk slow, memory fast (even compared to an SSD)
If memory fast, why no use memory
Some things load from disk often but slow to wait. Load from disk in advance and keep in memory so fast. Now use memory better.
If not enough memory we let go of other thing to run program.
How work? Magic.
Use something like ps to list out what is using the RAM
You mention you closed Firefox and it didn’t change but you did not say how you actually measured it.
Start the system up fresh and run this command.
ps faux --sort=-%mem
Or
ps faux --sort=-rss
That will help you track down what is actually using it.
Note: browsers will soak up a ton of memory on modern systems as almost all of them sandbox tabs at this point. If you open a ton of tabs, that will be half your problem.
That saying is because “unused RAM” is RAM that is not being used for buffers or cache.
That RAM is quickly freed for applications when it’s requested.
Specs?
Terraria is hardly resource friendly. What were you doing on FF, livestreaming?
Installing zram seems to me you have low end specs. You need a lightweight DE
I'm in the unused RAM is wasted RAM camp. Unless I run into problems I don't care about memory usage. So in your case I would've kept playing unless I got constant stutters.
And I think KDE is surprisingly light. Especially compared to older versions.
"Unused ram is wasted ram" is the worst argument I ever heard because that ram is so I can run MORE THAN ONE PROGRAM instead of some SHITASS WEB BROWSER taking all of it.
If I wanted to go back to the days before multitasking OSes when all ram was taken up by one program cuz you could only run one I'd install FreeDOS. Sick of this shit.
You should use zwap with swappiness 100 if you want zram + swap. You can also enable and configure systemd-oomd (out of memory demon) if you actually run out of memory at times - it goes about things smarter than the kernel (for example killing processes that wait on memory all the time).
Memory free
Memory free? I'll take a half dozen!
Sounds like a memory leak. Is it really KDE? Maybe its the browser or some kind of service running in the background. If memory got leaked out of the app, that it doesn't matter if you close the app or not, because those are ghost memory now. I had this issue with a local Ai program just yesterday. It doesn't matter if I close everything, somehow the memory usage shows high amount; because a software leaked and it was not KDE, as this was reproducable.
My point is. you might not know where this leak come from without careful analyzing it. You can't just conclude its KDEs fault because you don't know why this happens. You should investigate which program does that.
I think my buffer/cache fell 8GB and my available rose 0.8gb
Oh, it doesn't bother me. Unused RAM is wasted RAM after all. LMAO.
That's just because ZFS's disc cache shows up as application-used memory, instead of disc cache memory. (Disc cache memory is often reported in system monitor tools as 'free' memory, because it can be freed up as soon as you need it. ZFS's disc cache works the same way, but it's not reported separately to the OS, so that makes it look like ZFS is using a shitload of RAM.) If it bothers you, you can set a maximum amount of RAM for ZFS to use, and that will clear it up. It will mean that your performance is slightly worse, though, because ZFS won't be able to use disc caching optimally.
Thanks for confirming. Here is a blog technical post about it
I agree, it makes much more sense
Ok. Can you tell me more about what you are using? Are you on KDE and using Dolphin for the file manager? If Dolphin, do you see anything at all under removable devices? What file system is the card formatted as?
Can you also try running: sudo journalctl --follow in a terminal, plug in the reader, and check if you see something like "kernel: sd 12:0:0:1: [sdc] Attached SCSI removable disk".
buffered/cached memory shows separately
Some of it does. Let's try an experiment: does the reported amount of used memory drop if you run the following command?
sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches'
(obligatory don't blindly trust commands from strangers, type them out instead of copy/pasting, yaddayadda)
don't use Zram, use Zswap
If you have a trillion tabs open it's a trillion applications, not one.
Try using ZFS. My RAM is often ~53 GB idle.
I would kill all Firefox processes and see if it's a memory leak, also free -mh will show you what's in use. Most nix systems will have a load of memory in caches