LL Uses all ram but not swap

[Robert Junior]

Im using Linux Lite in a old notebook to play Minecraft with my little boy.

I made one machine install and every thing works fine, but second machine I suffer with a strange swap problem.

As I know Minecraft Java Edition uses a lot of ram and I can set the amount to reserve for java while starting game.

When I reserve 2GB for java the game loads and I can start play almost all Ram in use and only few mb used in swap.

Swap usage


Different from another machine that swaps grow im a way that seems normal to me like 600, 700, 900MB and keeps a secure amount of ram free. Already tried others swapiness combinations like 10 20 50 70 90, but nothing changes. A see a curious thing in Gparted the swap partition still off and I must enable it with swapon command

Partition boots like this: Swap off when boot


And then after right click swapon the swap is mounted and appears available in htop.

Noticed another strange info at Disks app. the swap allways show as unknow. mounted or umounted state. Unknow Partition


Btw I read something about this distro using a swap file instead partition, but I guess indifferent of type they should appears in use at htop.

Someone can guide me a direction. Im newby in linux but Im not give up a good fight. I really like that in linux.

Thanks you all.

[Valtam]

Personally, I wouldn't go anywhere near Minecraft without a mid to high end system and with at the very least 8gb of memory on any platform. 4gb leaves little room. Others may choose to guide you.

[Robert Junior]

Personally, I wouldn't go anywhere near Minecraft without a mid to high end system and with at the very least 8gb of memory on any platform. 4gb leaves little room. Others may choose to guide you.

Tks for advice Jerry. But I have an similar notebook with LL 4.4 installed two days ago and running fine. Of course that fps stay at 25/30. but is enough for me see my little having some joy with me.

I just noticed that problem occurs with any program.. Ram fill up and Swap stay at 5Mb.

I need to find why swapiness setting is not working.This solve my problem

Regards

[m654321]

What CPU do you have? Looking at Htop in your first post, you seem to have either a dual-core machine (without hyperthreading), or a single-core machine (with hyperthreading): from my experience neither of these types of CPU will be powerful enough to run Minecraft.

We tried Minecraft on the hardware listed below in my signature (except the Pi of course). The only set-up on which it worked satisfactorily, with a decent frame rate, was the Lenovo laptop - this machine has an i3-3110M chip, 4GB RAM (no swap) and an SSD. Though the CPU is a dual-core one, it is hyperthreaded and so it creates two further virtual cores, behaving a bit like a quad-core machine. Even if you upgraded your machine from HDD to SSD, I think the main weakness would still be the CPU: if you have less than an i3 chip, then the machine probably won't run fast enough for Minecraft.

Hope this helps.

[Artim]

This might be helpful:
Help! Linux Ate my RAM!

[bernard stafford]

These are the system requirements for the video game.
    •CPU: Intel Pentium D or AMD Athlon 64 (K8) 2.6 GHz.
    •RAM: 2GB.
    •GPU (Integrated): Intel HD Graphics or AMD (formerly ATI) Radeon HD Graphics with OpenGL 2.1.
    •GPU (Discrete): Nvidia GeForce 9600 GT or AMD Radeon HD 2400 with OpenGL 3.1.
    •HDD: At least 200MB for Game Core and Other Files.
    •Java 6 Release 45. 
:o 
Increasing the size of your swap, to 6 or 8 GB  may help. 
or installing CPU limit. In TERMINAL:

Code:

$ sudo apt-get install cpulimit

 
The same package is in the synaptic package manager.
Then after it reaches the preset limit it will go to the swap.
I completely agree with JERRY....8 GB of RAM or more..
I have 8 GB of ram .. my mother board is capable of 32GB of RAM..
Every thing works better with the right coffee..Update your JAVA..