this post was submitted on 11 Mar 2026
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What?
I use OSX for work and Linux on my personal laptop, that hasn't been my experience at all
MacOS doesn't shove the system UI components into swap when Firefox uses too much memory.
To clarify, some versions of Linux are lighter weight with resources, and macOS does tend to take up more RAM at rest to make things pull up snappier, if you have it to spare. But their compression algorithm is better, and if you are using near the limit, it will be more efficient with the use of the RAM you have available before lagging. With Windows and Linux, it feels more like if you're out of RAM you're out if RAM. It's less likely to happen at all on Linux though.
There are some advantages macOS can have but it depends on usage patterns and user knowledge:
Dynamic swap and zswap aren't really the same as efficient ram usage it's just good ways to mitigate when you run out. But when your using actual swap it's in my experience more noticable on OSX than Linux, which at least for me remains responsive until you're using a lot of swap.
Maybe Arch & Flatpak users hit this, but avoiding multiple versions of the same library is what distros exist for and avoiding loading different frameworks is what Desktop Environments are for. Although the ability to restore apps after closing them is pretty sweet and built in to OSX in a way that lets me safely kill apps to reduce the memory I'm using.
I think the main reason my Linux setup consumes less memory is probably because I used Kate for most file editing instead of vscode, which is probably an unfair advantage to Linux.
I disagree. If the OS automatically identifies unneeded pages and compresses them or swaps them out, it’s certainly using the physical memory more efficiently than if it wasn’t doing these things.
But they can’t if the applications they want to ship don’t all use the same version. E.g. Ubuntu ships GTK 2, 3, and 4. Arch even still ships GTK 1 in addition to these three.
What happens is you run KDE but then you still want to run Firefox so you still need GTK.