(Gentoo)Help me reduce my boot up memory usage
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This is from a fresh boot of the system, except sshd I have not started anything else.
ram consumption used to be just 126-200 mb now it has jumped so significantly that I am concerned I might have unnecessarily bloated my system:I intend to use the system as a local server with an optional fully featured WM(Hyprland which is installed, but this screenshot was taken before it was loaded) for occasional use.
Ram conservation is a top priority and I would like to know if such a big jump in usage is normal or are there is something wrong with my system config
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L [email protected] shared this topic
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If you can live without Networkmanager, I'd disable it and move your network setup to a static ip. Networkmanager can hog resources.
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free -mandslabtopoutput.I don't know when you had a clean boot using only 200MB, but it wasn't in the past few years with what you're running there.
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total used free shared buff/cache availableMem: 3354 350 3032 1 171 3004Swap: 8191 0 8191
on another reboot the memory dropped back down?
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Why do you care so much about memory usage?
Unused RAM is wasted RAM.
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It's just allocated in buff/cache. Only 354MB hard commit. You're fine.
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It's allocated memory in the cache. It's not used, it's earmarked for first usage.
This is standard memory management.
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Just download more RAM lol
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It’s apparently jumped by almost a third of all of their available RAM. That’s pretty significant.
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I’m pretty sure only the yellow bar on the right of that indicator is cache. Green is actually being used by processes.
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When you want to turn it on, instead unplug it and go start a farm. Problem solved, requires zero ram
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We joke but zram swap works wonders on low resource systems sometimes
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I meant like in general..
I do agree it's worth investigating if it happens again. My best guess so far would be some kind of data written to a tmpfs. That'd explain it not being associated with a particular process, yet counting towards actual used RAM.
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You can also drop cache for debugging by running something like
echo 3 | sudo tee /proc/sys/vm/drop-cachesBut remember that the kernel knows best --- this RAM will be automatically be freed up when needed and you should never run this except for debugging (or maybe benchmarking).
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Are you having performance problems? If not, what do you care?
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Time for the classic https://www.linuxatemyram.com/
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Although you may eventually want a ram
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The buff/cache will free automatically when an application needs ram, until then it's useful for speeding up the system.
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It just fucks your CPU usage
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I don't see anything wrong here. Ram is supposed to be always as full as possible.
What is not needed by running programs should be full of disk pages cached. A system with lots of free ram is oversized or abnormal.
Also, today's kernels require swap space. On disk is a must for a server, and maybe consider even zram.
Having swap will allow the kernel to organize it's memory usage even better.
Don't over think ram as that is a field in which you will be wrong and the kernel will be right 99%.
