Questions tagged [ram]

Random-access memory (RAM) is a form of computer data storage. Today, it takes the form of integrated circuits that allow stored data to be accessed in any order with a worst case performance of constant time.

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what is ideal swap size for a process?

Context: My process is almost hogging all 16 GB of available memory When I check for swap size it is increasing to 6GB then decreasing 3GB and stabilizing to 3GB Swap size trend for one hour 1 GB, 2 ...
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Removing Windows from dual-boot of HP Zbook Studio G3 to create some extra memory

I am new to Ubuntu Linux and for my full-year project, I just installed version 20.04 on my computer alongside Windows in dual-boot mode, which I need for ROS. However, I have faced many problems so ...
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Cannot install pytorch on AWS Ubuntu 18.04 even with 3 GiB of ram

I'm trying to install torch for an ML model on an 18.04 Ubuntu t2 medium instance, and it gives me the following error: pip3 install torch Collecting torch Downloading https://files.pythonhosted.org/...
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why is my memory cache so big?

right now I have only a browser tab running on my laptop, but when I open system monitor, in memory section, It shows: 3.2 GiB (23.2%) of 13.7 Cache 6.1 GiB why is my Cache so big? is it usual?, and I ...
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System memory is lower than installed

I have a relatively old laptop, Dell Inspiron 5559 with 16 GiB of RAM. It had Windows 10 installed and it showed the whole amount of RAM but I decided to install ubuntu 64 bit on it. I installed 20.04,...
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Can we clear memory cache in Ubuntu

In my Ubuntu 20.04 I see 8.7 GB Memory cache in system monitor. Can I clear this, what is the best way to do so?
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18.04 Swap Size Large than RAM

Something happened after a recent update. I have 5GB RAM installed (one 4GB card, one 1GB) on a Toshiba L750D. After a recent update, it started running super slow. I noticed it is only seeing 708....
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41 views

Help in increasing swap file size

I have an existing virtual storage but it is not enough and I cannot find a solution to this problem. I want to increase my existing virtual memory size. Any help is appreciated.
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Many segmentation faults in applications after RAM upgrade

I have a Lenovo IdeaCentre 510A-15ARR on which I replaced Windows 10 Home with Kubuntu. Here is some basic info: System: Kernel: 5.8.0-48-generic x86_64 bits: 64 Desktop: KDE Plasma 5.18.5 ...
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How to check RAM channel?

How to check if my ram is dual channel or not? Is there a piece of software similar to CPU Z to check this?
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Loading Ubuntu on to old netbook running Windows XP [duplicate]

I am new to Ubuntu. I have an old Samsung netbook with a 1.6GHtz processor and only 0.99GB RAM. Can I run last desktop version on this machine?
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Lubuntu 20.04 not detecting my ram

I had 4gb ram on a old desktop pc, I just installed 4gb extra ram. Bios detects 8gb, windows detects it. But linux only sees 4gb. uname -a: Linux appie-imedia-S2185 5.4.0-70-generic #78-Ubuntu SMP Fri ...
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How to test memory advance pattern?

I am new learner in Ubuntu. I want know about how to execute memory advance pattern test? Is there any ubuntu command or c++ program?
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Hi i am using ubuntu 20.04 LTS Focal my pc was freezing and crashing so i looked up on google and found a solution

This is the link to it So i just copy pasted it whole but what it did was make the computer think i have more ram(thats what I think). My pc specs: intel core 2 duo E8400 Ram 2gb 80gb hard disk ...
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How to extend ROM memory with USB stick / install apps on USB stick

I found thousands of tutorials on how to install Ubuntu on USB stick but I have got a different problem. I have created small 20 GB partition for Ubuntu on my SSD and because it has disrupted all my ...
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kfd kfd: kgd2kfd_probe failed

I am new to Ubuntu . I just cleaned up the computer and when I wanted to start it , it won’t start .when I checked , one of the rams was not in his place, but it’s not working .Takes forever to boot , ...
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Pre boot Memtest 86+ crashing

I've been experiencing some instability when configuring my RAM through DOCP (using the supported settings). The instability forms itself via total system crashes. When removing the DOCP "...
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DOCP RAM configuration unstable - advice

I've just built a new machine and newly embarked on the Linux Ubuntu journey. As part of this build, I have installed some 3,200MHz RAM (used in my previous system). I naturally configured within BIOS,...
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dconf-service using 11.5GB RAM on Kubuntu 20.04

Running Kubuntu 20.04.on Samsung Ultrabook, 12Gb RAM, 32GB Ssd, 500GB HDD. The OS is installed on the SSD and all my files are on the HDD.  After latest update, the fan run high and  the Computer ...
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On a desktop with 16 GB swap is being used slowly to eventually fill up and then system frozes

I Installed Ubuntu 20.04 some days ago, on a system with a 500GB SSD and 16GB of ram. It runs incredibely fast. I used mainly for web development with docker and 2 browsers opened. After 2 - 3 days ...
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33 views

Difference between free and available RAM

What is the difference between free and avaible RAM when I use the command free -m? If I have several virtual machines running on my host it shows me that I have just 200MB free and 3.8GB available.
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1answer
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Unable to free up disk space

I used Kazam to record a 12-minute screen recording and it somehow managed to create a 40 GB file. This caused my computer (really the computer on a Husky robot) to run out of memory. I tried to ...
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RAM Allocation for Ubuntu running in VM on windows 10

I want to use Ubuntu on an Oracle VM on Windows 10. However, I am stuck on the RAM allocation screen when setting up Ubuntu on the VM. My computer has a core i5 processor, 8gb ram, 500gb ssd and 2....
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Various applications crashing with SIGSEGV, diagnosed memory issues

Issue description For several months I am experiencing crashes of many different applications with SIGSEGV error. Applications are: browsers (Firefox, Brave, Chrome, Vivaldi) JetBrains IDEs (Pycharm, ...
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20.10: Frequent crashes (browser tabs & gnome-shell), seemingly related to memory

I'm running into fairly frequent process crashes on Ubuntu 20.10, some reproducible and some random. This has been going on for at least two months already. The most noticable crashes are in web ...
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Why does virtual memory (in system monitor) grow to such high levels?

When I run an OpenCL-based data storage app that allocates a total of 1GB buffer, the virtual memory tab in system monitor grows to inexplicably high levels while resident memory shows the true ...
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How to temporarily free RAM and restore it later?

I sometimes have a memory and CPU hungry app running (for example MediathekView) and want to start another (for example FlightGear) (both from terminal, if that matters). If I just start both, my PC ...
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96 views

Ubuntu freezes when RAM usage spikes

This issue persisted for a while, but it feels like it became extremely frequent (instead of once in a while, it happens almost every day) once I upgraded from 18.04 to 20.04. Whenever stuff happens - ...
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How much swappiness I need with 4GB ram [closed]

I am a bit confused because everyone says to reduce the swappiness to about 10; but if I have only 4GB RAM than how much swappiness would be the best? and also If I had 8 and 16GB ram? and also I am ...
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Ubuntu goes to a black screen after grub after a ram upgrade

Ubuntu works fine with my old ram stick but whenever I put in this new ram stick I bought it just shows a black screen after the grub menu, regardless of configuration(including just having the new ...
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Swap being consumed despite ram being empty

I was heavy tasking a while ago which probably lead to swap being used, probably the first time. But now there is still data in swap even though ram is free.
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What am I really missing with Lubuntu compared to the regular Ubuntu?

I was reading this article comparing different flavors of Ubuntu: https://itsfoss.com/which-ubuntu-install/ It seems that Lubuntu is extremely lightweight with very low RAM requirements which fits ...
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Ubuntu server reports incorrect RAM

Just yesterday I installed new RAM modules to my home server with Ubuntu server 20.04.1 I was changing drives as well so I installed fresh copy of Ubuntu server but unfortunatelly Ubuntu now reports ...
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Why free shows less memory than I have installed

I have two 2 Gb sticks installed but it shows I have only 3 Gb of memory. Here is free -h output total used free shared buff/cache available Mem: 3.0Gi ...
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1answer
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Out of memory: Killed process

i got Out of memory: Killed process 24502 (python) total-vm:19568804kB, anon-rss:14542148kB, file-rss:4kB, shmem-rss:0kB, UID:1000 pgtables:31232kB oom_score_adj:0 used this command dmesg how can I ...
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53 views

Can I use my swap memory to increase storage for Ubuntu 20.04? [duplicate]

I have accidentally (well actually carelessly) provided 11gb swap memory for my dual boot Ubuntu 20.04 installation with Windows 10. I have allocated 25gb to the root partition, which I would like to ...
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73 views

lxd host shows high memory usage not equal to the sum of lxc guest usage

I just want to understand with my lxd host shows high memory usage (more than 80%) while the sum of all guest container memory is way less than that? host:~$ free -h total used ...
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35 views

Ubuntu Memory disappears after long up-time

I've been having this problem for a few versions of Ubuntu now. Had 18.04 and upgraded to 20.04 on my Asus X552cl laptop. The laptop is running 24/7 and only needs a restart because of this issue ...
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Conky: a gap between lines: how to remove the space

I have this in conky.conf: ${voffset -10}Memory» $hr${color} ${color1}${goto 35}RAM : ${color}${execi 2 free --si -m|awk '/^Mem/{printf "%.2fGiB",$3/1024}'}/$memmax ${alignr}${execi 2 ...
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119 views

Linux stops responding when too much memory is consumed by running programs [duplicate]

I am using Lubuntu 20.04 on laptop with 4 GB of RAM. The problem is outlined in the title. I need to work with a few programs running simultaneously and one of them is known to be a memory hog. ...
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1answer
88 views

Conky $mem/$memmax RAM report differs from free -m command

I have this Conky report on my desktop screen: This is a relevant part of the conky.conf file: ${color1}${font ConkySymbols:size=16}J${font} ${voffset -10}Memory» $hr${color} ${color1}${goto 35}RAM : ...
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145 views

My system only see 8Gb instead of 12Gb memory, can you help me please?

Help me please! I have a MSI H55M-P31 motherboard with an i7 870 @ 2.93 GHz processor. Both of them supports memory up to 16Gb. I have installed 2x4Gb and 2x2Gb. My system only see 8Gb total, the ...
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How can I run Ubuntu server 20.10 in RAM?

I would like to run my Ubuntu server in ram, is that possible? If so how do i get started? I have 64 GB of RAM 1TB pcie gen 4 nvme m2 with Linux Ubuntu 20.10 server 1tb SSD not yet setup 2x2tb hdd not ...
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71 views

Meaning of the 'Memory' column in the System Monitor

This answer explains the meaning of the columns Shared Memory, Virtual Memory and Resident Memory in the System Monitor. However, the interface seems to have changed since that answer was written. I ...
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Is it possible to calculate how much memory ubuntu will need to boot?

Upgrading ubuntu 16.04 (server, not gui) to 4.4.0-194 kernel resulted in out of memory errors on a number of my servers, they'd been minimal purpose-built customized ubuntu vm's that had worked well ...
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BIOS detects RAM but Linux is not using all of it

I have 2x 4gb RAM modules installed in slot 1 & 2 on my mobo, with the server running Ubuntu 20.04.1 LTS. It looks like BIOS is seeing both modules: sudo dmidecode --type 17 Handle 0x0011, DMI ...
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How do I make ubuntu server as lightweight as possible. (Im trying to use the os for hosting something)

incase your wondering, lightweight means taking the least amount of ram as possible. If anyone knows how to do this, please answer Thanks in advanced (:
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Swap size on ubuntu server [closed]

I manage a VPS and I was surprised that there are less than 200Mo of SWAP for 4Go RAM, and all swap memory seems used (Swap usage: 100% at ssh login) After searches, I found answers like 62073, useful ...
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1answer
114 views

Ubuntu 20.04 is only recognizing 64Gb of 128Gb installed RAM

How can I get it to recognize my full memory block? My bios is correctly reporting that the 128Gb is installed, and my Windows dual-boot is working likewise [update: Windows is actually reporting ...
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1answer
516 views

Ubuntu 20.04 high memory usage when all apps are closed

All my apps (except terminator that runs htop) are closed. OS is taking more than 6GB of memory. Crazy how high this is!!! See screencap showing sudo htop. Before the screencap, I've killed a bunch of ...

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