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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Loading Unix Sockets on RAM to allow faster Communication

I am currently working with some php versions and nginx. They are communicating with FastCGI and i liked more the idea to let them communicate via an Unix Socket.. There i just got some Perfomance ...
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18 views

Ubuntu 16.04 freezing when running multiple programs or games

I am currently experiencing freezes on my recently built PC. The freezes are are accompanied by an audioloop and occur either when in a game or when running several programs at once. I tried using ...
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12 views

Ubuntu 14.04 Clear Swap when RAM is full

I am running a python program that, for some reason, goes crazy once in a while. I am then forced to kill the program but the RAM and Swap used by the program is not released. This causes the hanging ...
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11 views

Swap priority gets set to -1 on each boot

I have a swap partition of size 7.9 GB. When I use the command free, it shows this: NAME TYPE SIZE USED PRIO /dev/sda7 partition 7.9G 0B -1 The swap partition is not being used and ...
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12 views

14.04 Multiple Crashes, Different Circumstances, How to fix?

I am running 14.04 on Hard Drive not Virtual (just for clarification). Sometimes I am doing something, anything, maybe browsing the internet or typing something, and then it gets frozen. I have to ...
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1answer
33 views

Ubuntu doesn't recognize full RAM capacity

I have installed a Ubuntu Server 16.04 amd64 on my machine. I'm having trouble with ram capacity - first I installed a 2GB stick which free -m reported as 1430 total size, now I installed a different ...
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1answer
17 views

Server is swapping regardless of available memory

Here is some vmstat output x@x-server:~$ vmstat 1 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us ...
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12 views

Java based application is really slow

I am using Ubuntu 16.04. I have a big problem with java based application. When I use java based application, the application always become really slow. The application I used are Cytoscape and ...
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1answer
29 views

Swiching to Lubuntu from Ubuntu- Guild Wars 2

If I install Lubuntu over, or in replacement of, the Ubuntu I am already using, can I still download Guild Wars 2 with the play on Linux app? I currently have the game downloaded but it crashes at the ...
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2answers
30 views

How to show size Ram and CPU ussage in Ubuntu?

I am newbie in use Ubuntu so I don't know how to show Ram and CPU usage which is the same in Task Manager on Windows. It can show by command line in Ubuntu or Application to see more.
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13 views

How to restrict OS using specific memory locations in RAM?

I have 6 GB of RAM, my RAM has a block of memory corrupt( 1MB of size). When I tested it with memtest, it showed about a hundred thousand of errors in just a small part of it, starting from 5024.1 MB ...
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10 views

GPU vram extended with system ram

Is it possible to virtually increase the usable GPU memory RAM through the system RAM or an SSD? Background of the question is a program that requires a bigger than available GPU RAM.
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15 views

Store data on RAM to save loading time

I have large amount of data (about 3 Gb) which needs to be interpreted by Python. Because I don't have any SSD, but large (~50 Gb) amount of RAM, I tried to save data on /dev/shm or tmpfs, but it ...
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0answers
28 views

Ubuntu giving a blank screen after restore from suspend after a RAM upgrade on 16.04

I've increased the swap partition to be about 2x the new amount of RAM after the upgrade to resolve the issue, but that doesn't seem to have fixed it. The computer could previously suspend and ...
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1answer
29 views

Not properly using Physical memory

How do I get ubuntu to make use of the swap file. It doesn't even use the full physical memory, it only uses 1.3 Gb of 8 Gb, and it doesn't make use of the swap file at all, even when it has detected ...
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1answer
44 views

Is it possible to extend memory for ubuntu OS?

I installed Ubuntu 14.04 LTE in my DELL laptop.It is working properly,Now I can access 2 Operating systems(win8 & Ubuntu). At the time of installation process I allocated memory as around 10 GB ...
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18 views

How can I reserve memory for a specific application? (redis in this case)

I've installed Redis-Server on an Ubuntu Server 14.04 64 bit LTS and assigned 47GB of RAM as am expecting to temporarily hold data in RAM before dumping it eventually to Postgresql. I've noticed that ...
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1answer
57 views

kubuntu Xenial i386 and 8GB of RAM

I'm running kubuntu 16.04 i386 and have just installed additional RAM. It seems that 16.04 doesn't have pae kernel: E: Unable to locate package linux-generic-pae E: Unable to locate package ...
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1answer
14 views

How do you hotplug enable new CPU and RAM in a Virtual Machine

I am running Ubuntu in a virtual machine and I'd like to add CPU and RAM without rebooting the device. How can I hotplug this new virtual hardware?
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353 views

High usage of ram in Ubuntu 16.04

I have a problem since I upgraded from 15.10 to 16.04 some days ago: My ram is almost completely full! I have 8 GB of ram on my system, currently 6,9GB are used (with just firefox open). I've ran a ...
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0answers
57 views

RAM Memory Not Recognized

Today I put a new 8GB RAM, replacing the old 4GB one, but it's not recognized by Ubuntu nor by Windows 10 (I have dual OS). Now I have only 4GB recognized because I didn't replaced both of them. I ...
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1answer
35 views

I've more than 60% of free RAM but i can't run a simple php file

I'm trying to run a simple .php file in my local environement : (Ubuntu 15.10 - Intel® Core™ i7-4600U CPU @ 2.10GHz × 4 - 64-bit - 8GB RAM) So you are seeing that I've more than 60% of free RAM ...
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2answers
58 views

not all RAM recognised ~3.3 of 8GB [closed]

I recently installed some new RAM so that I have 8GB (4x2GB sticks). The Bios displays all four sticks, however Ubuntu only shows about 3.3GB available. Both the system details and info from terminal ...
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1answer
37 views

Do I have 2 more free slots for RAM?

I ran sudo dmidecode --type memory and the result was: # dmidecode 3.0 Getting SMBIOS data from sysfs. SMBIOS 2.7 present. Handle 0x000C, DMI type 16, 23 bytes Physical Memory Array Location: ...
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16 views

Ubuntu server and mysql with bitnami

I'm hoping someone can help me or point me in the right direction. I have an Ubuntu 14.4 server running as a web server which we run a WordPress installation on, We've used the Bitnami installer to ...
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1answer
281 views

High SHMem memory usage!

I have tried everything I could think of so here I am asking this question here... I have a computer that has 8 GB of RAM. After booting the computer, logging in, not opening any applications and ...
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1answer
34 views

14.04 LTS not recognizing all my RAM [closed]

I recently installed 32 Bit 14.04 on my old XP computer. It seems to have installed without issues, however all of the RAM is not being recognized. In the system info it says 2.4 GiB, I believe I ...
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0answers
31 views

Ubuntu running extremely slow on P4 1GB RAM. New Install. Used to run well previously

i am currently running Ubuntu 14.04 64 bit on a Pentium 4 with 1 GB DDR2 RAM. It used to run butter smooth on 2 GB RAM. Unfortunately I had to remove 1 RAM card to use in another old PC. And now, in ...
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6 views

Xubuntu dunst high RSS

I noticed my computer was being slower than normal so I checked the task manager and sorted by RSS usage, and "dunst" is using the most with 1285 MiB. That's a lot for my system, as I only have 3823 ...
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1answer
36 views

How do I tell what type of RAM I have in Ubuntu? [duplicate]

I have a dual-boot system with both Windows 7 and Ubuntu. Windows normally provides me detailed system information like what type of RAM is used. However, I am currently troubleshooting the PC and I ...
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1answer
77 views

Mediascanner-extractor consuming all RAM in Ubuntu 16.04

I recently upgraded Ubuntu 14.04 to Ubuntu 16.04. Now whenever I plug in my external hard disk, mediascanner-extractor starts consuming all my RAM and Swap space till my computer hangs and I have to ...
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0answers
12 views

Swap on video ram

I'd like to create Swap on video ram. I don't use my additional graphic card. Is a way to do this in Ubuntu ? https://wiki.archlinux.org/index.php/swap_on_video_ram
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2answers
38 views

Understanding htop

I am trying to make sense out of htop. I have a virtual PC with 6 GB RAM running ubuntu 15.10. I have installed a few applications on the server: Jenkins, Artifactory and some other tools. When I run ...
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7 views

Ubuntu 15.10 trying to upgrade AMD Desktop memory and getting hangs

I have been trying to upgrade my AMD desktop memory from 2G to 8G. The box runs dual boot with Windows XP, which boots fine although it only recognizes about 3G of memory. When I try to boot to Ubuntu ...
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1answer
27 views

Allocating disk space as memory temporarily

I need to run some application to convert large files (7GB). The converter application isn't nicely written. So it doesn't stream the coverted data. Therefore, it requires high amount of memory. I ...
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1answer
44 views

64-bit Ubuntu seems to think it is 32-bit

Yesterday, I posted this thread, and got a reply, telling me to install 64-bit Ubuntu. I thought I already had a 64-bit copy, so I went to my system Details, and found that I did, indeed have an x64 ...
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1answer
30 views

Build fails after not enough RAM even after swap

I have a 4GB RAM and I have to work in android environment. Some components in the source needs high RAM as a result, I made a swap file of 8GB and I have a 4GB RAM. My RAM is 11mb or less while ...
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21 views

A software doesn't have access to enough memory?

I use the software GrandOrgue, and I've had pretty good results with my two MIDI keyboards and some basic samplesets, but when I try to load a larger one, such as the Barton 3/7, it gives me a "Not ...
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0answers
28 views

How to lift memory limitation?

My current machine: ASUS K50IJ: 64bit dualcore 1.8GHz CPU, 2GB RAM, intel GMA 4500 I played Half-Life 2 on this machine, on Windows, which has the same engine as Team Fortress 2. Now I only have ...
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34 views

Swap Partition Causing Lock ups/Freezes

I recently added a swap partition and it functions properly. However, I have noticed that whenever I run programs that use a lot of memory (use most of my ram and 1 gb of my swap), my GUI locks up, my ...
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0answers
42 views

Does Ubuntu limit svn process memory if ulimit returns unlimited?

I am trying to commit a file using svn it crashes with an Out of memory error. I am running Ubuntu 14.04.1 and have 6G memory, 6G swap partition and 12G swap file. I am able to use svn to commit ...
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0answers
38 views

Help interpretting memtester output?

Ok, I decided to try memtester on my computer because it was crashing frequently. I have the results, but am not sure how to interpret them. Any help would be fantastic! memtester version 4.3.0 ...
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0answers
16 views

Ram compatibility issues

I would like to learn more on RAM compatibility. I know that parallel socketing of RAM makes somehow multitasking easier (the CPU can handle parallel data from the RAM to the Lcache), but I would like ...
2
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1answer
36 views

A Simple way to force an “Out of Memory” condition?

I'm working on getting alerts set up. Can anyone suggest a simple way to force an out of memory condition say on a vanilla ubuntu?
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1answer
34 views

immediate shutdown at boot time with 8GB memory

PC: VersaPro(VK24LX-B) OS: ubuntu 15.10 Today I went a PC shop to upgrade memory from 4GB to 8GB, but the staff told me he couldn't do that.He demonstrated what happened: Changing memory cards, ...
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0answers
40 views

Ubuntu not booting after upgrading RAM and cpu

I have a Ubuntu machine running on Hyper-V It is the 15.10 version 64 bit. I tried to shut it down and then upgrade it from 8 GB og ram to 16 GB and from 2 processor cores to 8. But when I turned it ...
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1answer
48 views

MySQL out of memory

I recently upgraded my VPS from 1 GB RAM to 2 GB because MYSQL kept crashing due to low memory. The server has been running fine for 3 weeks until now. The following is logged to /var/log/syslog ...
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2answers
72 views

Very slow ubuntu Desktop

I have use 2GB With Dual Core Processor Computer, and install ubuntu 12.04, Even though the computer is running very slow, All time Show CPU Uses 100 %, and Memory Uses 100%. So What should i do to ...
2
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1answer
51 views

New 16gb of Ram installed yet I see 15.3 on my system. Why?

I uploaded a visual. Just switched 4gbs to 16gbs of RAM. However, when I look at how much memory I have it says 15.3. I'm just wondering why did my memory drop down when I just installed 16 GBs of ...
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2answers
64 views

Normal RAM usage of the Ubuntu 14.04 LTS (Server Version)? [closed]

my question is how much RAM a Ubuntu 14.04 LTS server normaly uses? when nothing is installed on it?