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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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Really Slow System After Suspend to Ram

I honestly don't even know where to start. I have been distro-hopping like crazy to see if I can find something that works out of the box with my system. My problem is, when I first boot on the system ...
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23 views

Swap file not been used

I'm aware that this can be an issue with my swapiness,however my swappiness cannot be saved, no matter what i change it to, it defaults back to 5 after each reboot. My physical memory can be on 100% ...
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42 views

Swap barely being used

My system grinds to a halt when physical RAM fills up. The problem is that I have a swap partition and swappiness is set to 60 but the swap is barely being used. $ cat /proc/sys/vm/swappiness 60 $ ...
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High memory and swap usage on ubuntu 16.04

I understand that Ubuntu uses RAM differently than windows, where "not used RAM is wasted RAM". I've seen this question asked all around but never properly answered. A few weeks ago my Ubuntu ...
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I can't clear memory cache permission denied even with root

so I've been trying to clear my memory cache but when i run sync; echo 3 > /proc/sys/vm/drop_caches it says permission denied even when I'm on root. can anyone help? Thanks.
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1answer
45 views

Insufficient 8 GB RAM compels me to use a swapfile?

I have a Ubuntu 18.04.2 on laptop HP Pavillion G6 with CPU AMD A8, 128 GB SDD, and 8GB RAM. I use it to work on web development daily with Firefox/Chromium, Atom, Skype and React. It used to freeze ...
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41 views

Heavy HDD access even without swap (Lubuntu)

Lubuntu 18.04, default desktop configuration. I turn the swap off and begin a RAM stress test. When I allocate too much RAM, the system starts to read or write something constantly, completely ...
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25 views

Getting specific 'Out of memory!' message when running Perl script

I have also a problem with an "Out of Memory" by running a simple pearl script. In xubuntu 16.04 it works without errors. With 18.04 it doesn't work any more. I have to send different HL7-messages ...
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45 views

Swappiness not working, set to 10 but 40% mem and 40% swap occupied

I'm experiencing this issue since I crossgraded my ubuntu 18.04 from 32 to 64 and upgraded to 18.10. Swappines is set to 10 cat /proc/sys/vm/swappiness 10 but is swapping from the beginning and now ...
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14 views

RAM usage and swap after wake from suspend - 16.04

I've noticed that after each wake from suspend, my RAM simple keeps getting more and more utilized with the same workload or applications running. Another observation is that after a couple of wake ...
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2answers
61 views

Is the memory empty after power off ubuntu

I am learning the fundamentals of CS and confused about the main memory. I learned that BIOS reside on mainboard and linux was install in mass storage disk(such as HDD) After I firstly installed ...
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40 views

My PC's memory showing 4 GB instead of 8 GB

i would like to get some help regarding my issue , i have 8 GB on two slots different models , but after Ubuntu crash it showing one only sudo inxi -m Memory: Used/Total: 1337.2/3418.7MB ...
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1answer
55 views

Is this too much memory for mysql on ubuntu?

I had a question about mysql memory usage in a ubuntu server. I have an AWS EC2 server that hosts about 20 wordpress sites, all conencted to 1 mysql instance. They aren't huge sites by any means, but ...
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21 views

Ubuntu memory question after clearing cache increased used memory

I had a question about clearning the memory cache in ubuntu. I noticed my wordpress sites are going very slowly and having trouble connecting to the mysql DB. I figured I would check the memory levels ...
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22 views

PC swaps and stalls, despite low usage, big RAM, zero swappiness

I have a 5400rpm disk and 16GB of RAM so I have reduced swappiness to zero (as confirmed by cat /proc/sys/vm/swappiness). I have almost no programs open: just Firefox, a text editor, a terminal, ...
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1answer
104 views

Weird memory leak on 18.10

I suddenly noticed very weird "memory leak" on ubuntu 18.10. RAM is increasing by itself! And when it reaches the maximum amount of available RAM, it begins from 2gb. Please, watch the video to ...
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4answers
173 views

Ubuntu periodically freezes

I have a strange problem. On a freshly installed Ubuntu 18.04, the systems seem to work fine. Suddenly, apparently for no reasons, the system hangs up, for 10 seconds or a couple of minutes, and I am ...
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1answer
50 views

What are the model, current ram size and max ram size supported by this laptop? [duplicate]

I boot into a live Lubuntu usb on the laptop, and run lshw see below. (Please help me remove private info in the output, if I miss to do so. I have only removed serial numbers. Anything else I miss ...
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3answers
61 views

apt-get update quits without message

I am sure this is a duplicate but I have looked extensively without finding an answer. I am trying to run apt-get update on Ubuntu 18.04 LTS. It always quits without an error message When I type su ...
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1answer
25 views

Adding RAM is being converted to swap [closed]

I am not completely sure if in the right website (though I think I am). Anyway, my problem is I wanted to increse the available RAM in my machine from 8 to 16GB. I got another memory (exact same one ...
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26 views

No memory for installing packages and software

I recently installed Lubuntu 16.04 on a laptop, removing everything (it had a few partition issues) and re-creating disk partitions from scratch. However, the system is not able to install any new ...
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24 views

Bad memory usage with ZoL and KVM

I´m running about 25 virtual machines on my KVM host. For Storage I´m using a ZFS Pool with 13 1TB Drives and three ssds for ZIL and Cache. The Server have 128GB RAM. I wondering about the low Memory ...
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1answer
41 views

Swpd and Free Memory [duplicate]

I'm tryng to stress a web server with requests, I used vmstat to get the memory usage of the server, but I don't understand few things. When the requests start, the free memory decreases and the swpd ...
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1answer
76 views

How to Stop Screen Blinking Because of High Memory Usage?

I have a problem with Xubuntu 18.04. The problem is, when I do something that uses a lot of memory (like watching YouTube videos, opening multiple tabs on Chromium, opening a tab on Chromium, or ...
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111 views

Why does the system (Ubuntu 18.04.1) report 11.8Gb of total Ram when I installed 32Gb?

I don't undestand why my Ubuntu 18.04 reports 11.8Gb instead of expected +/-32Gb. I have 2 physical "pieces" of 16Gb RAM each on a Dell laptop Precision 7510. OS is 64 bits: $ lsb_release -a No LSB ...
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1answer
86 views

Why does a newer version of an operating system require more memory? [closed]

I'm not referring to the memory leak issues in Ubuntu 18. I'm referring to the default memory that the OS consumes. With Ubuntu 16.04, it required barely 500MB, but Ubuntu 18 needs almost 1GB. ...
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1answer
62 views

Upgrade RAM from 20GB (1x 4GB, 1x 16GB) to 32GB (2x 16GB)

I'm currently using Ubuntu 16.04. When I'm processing large datasets, I sometimes run out of memory. Therefore, I want to upgrade RAM from 20GB (1x 4GB, 1x 16GB) to 32GB (2x 16GB), can I just swap ...
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0answers
48 views

Chaning Swappiness value with an SSD and Low Ram is it worth it?

I've been told that if you want your system to be fast, you should lowered your swappiness value to a minium (usually 10%) because usually the RAM is faster than a Hardrive, but in my case I have only ...
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1answer
32 views

Use excess RAM as cache for Samba?

I have a older workstation with 32gb of RAM that I've repurposed as a server running Ubuntu Server 18.04. Since 32gb is way more than necessary given the limited use (mainly just file sharing and ...
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1answer
129 views

What is the best cgmanager alternative for Ubuntu 18.04 LTS?

I was using package cgmanager to automatically manage processes into memory cgroups in Ubuntu 16.04 LTS environment. However, I did a fresh install of Ubuntu 18.04 and package cgmanager is no longer ...
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1answer
88 views

Memory intensive applications make the system unstable

I've had this problem since Hardy Hereon. Ubuntu becomes unstable when applications ask for too much memory. The memory request sends kswapd to an overdrive that makes the system unstable and I have ...
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1answer
47 views

Meaning of /proc/Meminfo file and Dmidecode command

Looking for information about total memory on my laptop, I've found the following but I have some doubt about the meaning. From the dmidecode command I obtain: Handle 0x0010, DMI type 16, 23 bytes ...
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39 views

Ubuntu consumes a lot ram

Android Studio and Firefox takes 16GB Ram of 16GB available in Ubuntu 18.10. It is so annoying, There were not any problem in earlier releases of Ubuntu it started with 18.10. I don't think so it ...
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32 views

Upgraded ram causing boot/ubuntu problems

I upgraded my acer aspire 5 from 8gb ram to 20gb (replaced 4gb ram stick w. 16gb). Replaced w. Kingston DDR4, same clockspeed as the last. The acer logo only used to show for a split second, now ...
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3answers
106 views

Ubuntu slows and freezes whenever the memory

Ever since upgrading to Ubuntu 18 from 16 on my machine (2GB RAM) I am experiencing slowdowns of the system and freezes of the current program (Chrome, for example) whenever the physical RAM memory is ...
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1answer
58 views

Lack of memory and need to work on swap

My computer (running Ubuntu 16.04) has 8GB memory and 8GB of swap. When I use my computer it ends up freezing due to a lack of RAM. How can I make it work on swap when there is no memory left? The ...
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3answers
294 views

Slowly rising RAM consumption in Kubuntu 18.10

I have installed Kubuntu 18.10 with backports and upgraded to Plasma 5.14 latest version. I have observed gradual increase in RAM usage from idle state (Booted the system and opened System Monitor). I ...
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2answers
265 views

Why does Firefox 64.0 use so much memory in Xubuntu 18.04.1?

I have a problem with my new install of xubuntu 18.04.1: Firefox uses about 58% of my 2GB of memory. On my old install of Xubuntu 16.04 it used about 400 Mb and I don't know where the difference ...
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1answer
122 views

How can I limit page cache/buffer size

My problem is this: My laptop has a relatively slow disk subsystem (amd I'm not going to buy a better one) and I backup my system using rsync which works well for me. However, during the backup ...
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1answer
196 views

I keep running out of memory and swapping but having a hard time figuring out what is using so much ram

This is what it looks like on top: To get that free memory I had to kill Android Studio. Chrome is definitely using the most memory, but also Firefox. I keep both open most of the day doing different ...
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2answers
174 views

Can I allocate both “available” and “free” memory to a Minecraft server? (18.04)

I have about 4GB of available memory and 1GB of free memory. Can I allocate 5GB to my Minecraft server? I am a noob, just got Ubuntu :D I have no idea what the difference between free and available ...
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2answers
102 views

Random freezes in (X)Ubuntu 18.04 caused by filled up RAM

I have a problem with random freezes in (X)ubuntu 18.04(.1) under Kernel 4.19.0 and 4.19.4. When I check 'top' during freeze episodes, I can see that all my RAM and SWAP is slowly beeing consumed by ...
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0answers
255 views

Ubuntu 18.04 doesn't use swap, but whet it does it freezes

My ubuntu 18.04 64bit isn't using the swap file/partition to the point when the 8gigs(of which 7.3 are usable) of ram almost fills up, and when it does, and actually writes some things in swap it ...
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0answers
45 views

spinning cursor icon - what's it doing? [closed]

I am a long time Ubuntu user and I have not seen this before. I recently installed VS Code (https://code.visualstudio.com/). When I open VS Code directly, or use file manager to open a file with VS ...
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36 views

Why is Wikipedia taking up so much RAM on Ubuntu (with Google Chrome) and how can I reduce it?

My laptop with 16GB of RAM keeps running out of RAM and the top 10 processes chewing up the RAM are always from Google Chrome tabs, some which are using 900MB of RAM: Opening Google Chrome's own task ...
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67 views

Ubuntu 16.04 use all swap instead of free memory

I have 128GB of memory but Ubuntu 16.04 seems to use all swap space instead of using 55GB free memory. So of course the load goes to the moon. Could someone help?
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G860 CPU to i7-3770 CPU + More RAM - advise requested [duplicate]

I have a G860 CPU installed on an Asrock H61M-DGS Motherboard - works well under Ubuntu 16.04. Now to the question: If I was to purchase and install an Intel Quad Core CPU say i7-3770S could I ...
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0answers
20 views

Ubuntu(16.04.5) Memory is used more than 97%. Why it is used so much memory? [duplicate]

I have a Ubuntu Server. Version: # lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.5 LTS Release: 16.04 Codename: xenial The uptime is: # cat /...
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0answers
31 views

System and applications hogging up RAM after returning from suspend mode

I leave my PC on a lot when I leave and therefore learnt to use sleep/suspend mode. In Ubuntu 18.10 I've noticed that a lot of the applications running after returning from suspend mode have doubled ...
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16 views

if I download to a mounted ram disk will it be the same as moving the from hard drive to ram but faster

what I'm asking is: are mounted ram disks (the ones made with commands like this mount -t [TYPE] -o size=[SIZE] [FSTYPE] [MOUNTPOINT]) just a file that works faster so if I download into the file it ...