KDE Will Nicely Notify You When Apps Are Being Killed Due To Out-Of-Memory

[ahrs]

How much are you willing to bet KDE6 has become more frugal now that it's using Qt6?

It's so fucking easy to dismiss someone's work without providing any counter arguments.

"Qt6 is better, case closed", Linux fans strike again.

You could try it yourself. On a Core2Duo laptop with 8 GB of RAM. I'm currently using 900 MB of RAM at idle. I closed Chrome, but this is still with KDE Connect and other services running in the background. It was using 700 MB but then I opened Spectacle to take a screenshot.

Obviously, I am just one data point though. Screenshot_20241102_113724.png

[primary]

Maybe consider optimizing/rewriting Plasma first:

https://itvision.altervista.org/linux-desktop-environments-system-usage.html

The absolute worst DE in terms of RAM consumption on Linux. I can redo the comparison but so far no one has been interested.

thanks. this was completely necessary and important post from you. I will definately bookmark this so that I can look it up when ever I need to see this. Thanks again.

[mrg666]

Maybe consider optimizing/rewriting Plasma first:

https://itvision.altervista.org/linux-desktop-environments-system-usage.html

The absolute worst DE in terms of RAM consumption on Linux. I can redo the comparison but so far no one has been interested.

You are so wrong. Plasma uses only ~700MB on my computer.

This is FC41 KDE spin with 32GB RAM and a GTX1650 GPU

"free -h" with SSH logon from network, only SDDM running, no other users

               total        used        free      shared  buff/cache   available
Mem:            31Gi       1.1Gi        28Gi       9.0Mi       1.9Gi        30Gi
Swap:          8.0Gi          0B       8.0Gi
​

"free -h" on the Plasma 6.2.2 session, only Konsole running

               total        used        free      shared  buff/cache   available
Mem:            31Gi       1.8Gi        27Gi        21Mi       2.1Gi        29Gi
Swap:          8.0Gi          0B       8.0Gi

Don't reply, no discussion necessary.

[mrg666]

thanks. this was completely necessary and important post from you. I will definately bookmark this so that I can look it up when ever I need to see this. Thanks again.

Only if it was correct. I don't know what he was doing (I doubt he knows either) but see the correct numbers above

[primary]

Only if it was correct. I don't know what he was doing (I doubt he knows either) but see the correct numbers above

yeah, also I kinda find that these comparisons, while fun, are kinda pointless and expecually dumb to randomly throw around like it is any meaningful data.

[Firnefex]

Maybe consider optimizing/rewriting Plasma first:

https://itvision.altervista.org/linux-desktop-environments-system-usage.html

The absolute worst DE in terms of RAM consumption on Linux. I can redo the comparison but so far no one has been interested.

Your test is old, and even older tests showed Gnome using much more RAM, so you need to be up to date if you want to criticise!
On Ubuntu, KDE also uses less, so maybe it's Fedora?

I'll give you a hint, there are different components in a system that are not always installed by default.
Gnome has stripped out so many things that it's barely usable without extensions for many users, so it's no wonder it could win against KDE.
But for KDE, I can say that Akonadi is the application that wastes the most RAM. You can uninstall it and win against Gnome no matter what.

Last but not least, the RAM consumption of any DE is "quite low" when compared to browsers. If you somehow still manage to have a wooden PC, you won't take one of these nicely looking and well integrated DE's.

[cend]

And we've got shit only by #2...

A quick code skim seems to indicate that the OOM notifications are delivered, ultimately, by systemd-oomd, which...might not be started on some customized setups. Not sure if there is a kernel uevent interface for OOM.

[NotMine999]

So it's not even KDE 6?
You seem to be interested since you're using almost 2 year old measurements of a different major version of KDE running on a different major version of Qt to argue about current KDE.

Numa ... you are speaking logic & reason to a long-term resident Moronix whiner named Avis / Birdie / Artem S. Tashnikov (any perhaps other unknown nyms & sockpuppet names) who will bang their drum as loudly and as long as they want ... because they can.

I simply ignore that person's posts.

[uid313]

Very nice!

I hope this comes to GNOME too.

I don't have a swap file or a swap partition, my experience when my system runs out of RAM is that everything freezes, then if I wait a minute or two then some process gets killed and things work again.

[varikonniemi]

Maybe consider optimizing/rewriting Plasma first:

https://itvision.altervista.org/linux-desktop-environments-system-usage.html

The absolute worst DE in terms of RAM consumption on Linux. I can redo the comparison but so far no one has been interested.

This is what RAM is there for. So that when you do some interaction, it happens immediately instead of it having to load the new resource first.