Questions tagged [memory-usage]

Questions related to memory usage related to RAM, swap; issues expansion, in Ubuntu.

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Ubuntu running slow: buying another storage device for 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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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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2answers
75 views

How to investigate ext4.vhdx file and see what's inside while using wsl2

currently I am using wsl2 and I notice a significant amount of disk space is required for ext4.vhdx, like I know it's Ubuntu's file management system, but I don't deeply understand what's inside, that'...
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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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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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1answer
61 views

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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Ubuntu 18.04 OOM Killer keeps getting invoked, but I can't find any sign of out of memory

I have a fresh install of Ubuntu 18.04 Server. I am trying to build it up to replace a server that has died. I am having a lot of trouble with OOM Killer killing my logins, my rsync's, and lots of ...
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1answer
123 views

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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How to show actual memory usage instead of “%MEM”

In Linux, when using top to see how much memory a process is using, how do you force the thing to actually tell you how much memory things are using (instead of having it obfuscate the actual value by ...
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How do I increase my internal Kubuntu partition size? (in dual boot with windows) [duplicate]

My internal memory (I'm not good at English so i don't know exactly what we say it) is full for know. Look at this image 👇🏻👇🏻👇🏻 This sentence is in my dolphin (Home folder) How I can increase ...
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Prevent system freeze when out of memory

So the problem is that I sometimes get memory leaks, and they sometimes leak very fast, making the system unresponsive before I can react. However, in other operating systems, even when swap is on, ...
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/sbin/zsysd using extreme amount of CPU+memory

I'm running Ubuntu 20.10 Groovy with full-disk encryption, on a Thinkpad T490. I did a fully clean install (moving from Debian) of Ubuntu about a month ago. After boot /sbin/zsysd starts using large ...
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GNOME Software Memory Leak

GNOME Software is memory hog GNOME 3.38.1 GNOME Software 3.38.0 Ubuntu 20.10 Linux Kernel 5.8.0-40-generic How can I solve this? Thanks!
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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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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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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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Fresh instal Ubuntu server takes lots of memory

I just installed Ubuntu Server 18.04.5 on a VM with 4 VCPU and 8 GB RAM. Except for the SSH server, I didn't install anything else. I noticed the RAM usage on this server is standing around 6.77 GB ...
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Can I make Ubuntu leave enough memory to be able to keep running Gnome?

I've had it happen a few times -- e.g. while running a python program that parses a large file in memory, or using Firefox to share a screen while a lot of docker containers were running -- that Gnome ...
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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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Can switching to Ubuntu free up disk space? [duplicate]

I have a budget sized hp laptop that has a small hard drive (not upgradable) and windows use 90%. When my cache gets even a little filled it slows down to a crawl. I understand ubuntu takes up less ...
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Different memory allocation on GTX 1080 ti, Tesla k80, Tesla v100 for the same pytorch model

I have tried loading a distilbert model in pytorch over 3 different GPUs (GeForce GTX 1080 ti, tesla k80, tesla v100). According to the pytorch cuda profiler, the memory consumption is identical in ...
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44 views

Optimal RAM use to be made use in compiling

How do we make sure RAM will be made use of as big/much size as possible for caching, etc process for optimization when compiliing C/C++? though ccache is basically installed on Linux, no definitive ...
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Ubuntu 20.04 taking way too much ram

Some time ago I noticed a lot of ram(1.8/8GB) being used when my system was idle with only a day of uptime. I had to reinstall my Ubuntu because of some reason and now the ram usage has risen up much ...
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501 views

Ubuntu using a lot of ram when idle

I recently started to notice that ubuntu is using a lot of ram even when I'm idle. I'm on Ubuntu 20.04 and when uptime of only 10 hours ubuntu is using 1.9GB/8GB with/without extensions. This is the ...
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80 views

How to assign disk unallocated space to ubuntu partition using terminal? [duplicate]

I recently installed ubuntu-server on a VM and later on increased the virtual hard disk size from 10Gb to 70Gb. Here is the result of lsblk. user@ubuntuserver:/$ lsblk NAME MAJ:...
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58 views

Extended ubuntu-server VM's memory. Still not enough available size

I recently installed an Ubuntu-server (20.04) on VM initially giving it only 10Gb RAM. Soon enough, I noticed that the program I need to install (Gluu-server) requires at least 40Gb. Hence, I ...
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70 views

Cannot Umount the file /dev/sda1 in VirtualBox

I am using a Ubuntu 16.04 LTS on VirtualBox and start working on Yocto Project. I was able to modify and allocate until 1TiB in the Virtual box outside but when booting the system, it will just ...
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86 views

Understanding memory management

I have an Ubuntu instance running a Node app. This is a web server application, so it is a long-running program that doesn't exit. If I then run a Node script: node ./something.js, would this process ...
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158 views

Ideal RAM usage in Ubuntu server 18.04 LTS? [closed]

I have my ubuntu server setup at Amazon AWS. Specs are- RAM - 1 GB Processor - Intel Xeon, a single core allotted to me. When I login, I find that RAM usage is always near 42%, I have setup apache2 ...
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563 views

Find Total Memory Usage of Python Process and its Subprocesses

I have a Python 3 script foo.py that will fork 16-32 additional Python workers during its run. Using the bash shell in Ubuntu 18.04+, is it possible to calculate the total amount of memory being used ...
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I just upgraded my RAM and still running slow. Can I add Mem from Swap?

I have two slots of RAM, 4 GB and 8 GB (just added). But, it runs like it has 4 GB only (just like before it's upgraded). I try to monitor my memory usage with free -h, and this is the condition: ...
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291 views

Why Xorg takes more cpu usage in ubuntu20.04

I just get to know about Xorg when it takes more cpu usage in my machine but i don't know why it takes more CPU usage? can anyone explain me this? Thanks in advance
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No space left on device, not able to install anything [duplicate]

https://drive.google.com/folderview?id=1pljOCSln5zwNsQO5gcv5Kx1qNM7KH-Uh Please refer to the above link. My 19GB / partition is 100% full. I understand that root / partition /dev/sda8 is filled, but I ...
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Why am I seeing Virtual Memory when Swap is off?

Why am I seeing Virtual Memory when Swap is off? What does this mean? I am running from live usb - so swap is off. Edit: There are other Q&A's (1, 2) that explain about Virtual Memory and Swap. ...
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152 views

Ubuntu 18.04 uses just 2 GB of 16 GB RAM. Do I need to do something about it?

I have 16 GB RAM, but my Ubuntu system just uses a maximum of 2 Gb!!? What should I do about this, if anything?
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Finding out which process is causing server out of memory?

We are using Ubuntu in an AWS EC2 instance and the server will periodically become unavailable, which requires a reboot to be done. While this does make the server available, it doesn't really solve ...
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98 views

How can I get swap under control while running Ubuntu 20.04 on virtualbox?

I'm having a problem where I can't get swap or memory utilization for Ubuntu under control in a VirtualBox VM. I use Ubuntu fully on the desktop at home, but at work due to IT some kind of PCI ...
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54 views

What does the available section in free -m command output mean on Ubuntu 18.04 server?

On a testing server, Elasticsearch is giving this error: Elasticsearch::Transport::Transport::Errors::ServiceUnavailable ([503] {"error":{"root_cause":[],"type":"...
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Ubuntu 19.10 is not using full RAM

As you can see in the scrrenshot attched, my RAM usage reamins fixed. I have 8GB ram installed, but the OS is using only about 50%. Even after opening multile programs(even multiple tabs on chrome) it ...
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309 views

Where is the memusage command in Ubuntu?

On my Ubuntu LTS system, I have a manpage for memusage: $ man memusage MEMUSAGE(1) Linux user manual MEMUSAGE(1) NAME ...
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492 views

htop Memory usage vs bar depicted

Attached is a screenshot from htop command. I am wondering why the Mem bar is like 50% full when only 4.1GB out of 126GB is used. Are the Mem bar and the 4.1GB figures representing something different?...
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1answer
524 views

Is 'swap off' safe when app is running on production?

My app has several JVMs running in Linux and swap usage is mostly zero. However, sometimes by high traffic or slowness of database, JVMs consume swap memory, which is not recommended. If it happens, ...
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Why the results of sar -r and the system monitor are so different?

I am watching the system monitor "Resources" graphs in a ubuntu system while running some application. I am also running from a terminal `sar -r 1' Why the results are so different? Actually ...
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671 views

What's causing the lag spikes to my ubuntu linux server node process

I run about 5-6 node processes related to discord.js, and sometimes I get some lag spikes and some of my node processes are printing ''Killed'' and it's terminating their process. Why is that? here ...
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141 views

Ubuntu running out of RAM and crashing and freezing because of it

i have 32GB of RAM in my computer which should be more than enough as a web developer. i think adding more will only delay the out-of-ram issues. i am experiencing issues on Ubuntu where chrome is ...
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1answer
90 views

Memory and CPU usage on kill -STOP

I recently learned kill -STOP command. I was wondering, what happens to the data on memory if I do this command. For example, if I do kill -STOP on a process 999 which is taking 20 GB out of 32 GB ...
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6k views

Should the snap-store be using >300Mb of memory?

The snap-store process is intermittently using hundreds of megabytes of RAM. Is this normal? Is there a solution?
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Too much “free memory”

I have extremely high "free memory". According to this site here it is better to have "free memory" as close to 0 as possible. What I understand is that this "free memory" is basically wasted memory ...
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3k views

High load average but low CPU from top

I'm trying to track down repetitive hangs on an oldish laptop (10yo, 4Gb of mem, 2 cores, Kubuntu 18.04) It now happens several times a day with moderate use (<10 tabs open in firefox, a bunch of ...

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