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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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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28 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
49 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
39 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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30 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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39 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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48 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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63 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 (64-...
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19 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 ...
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1answer
38 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
39 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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50 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
52 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
76 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 ...
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1answer
57 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 ram....
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2answers
77 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?
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1answer
54 views

My memory is full but processes list is empty

PROBLEM My memory is full but the processes list is empty of heavy programs! Usage: Total memory is 4GB but only 400MB is free: Monitor with htop: When sorting by %MEM -> heavy programs ...
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2answers
68 views

Ubuntu 15.10 64-bit is not working very well in my PC

> System: Kernel: 4.2.0-32-generic x86_64 (64 bit) Desktop: Unity 7.3.3 Distro: Ubuntu 15.10 wily CPU: Single core Intel Pentium 4 (-HT-) cache: 1024 KB clock ...
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2answers
88 views

Ubuntu 32bit or 64bit on a laptop with 4gb ram? [closed]

My laptop has 4Gb of ram and the processor can suport 64bit. What should I install, 32bit or 64bit? And why? As far as I know the 32bit version will use less ram but at max 4gb of ram.
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167 views

How can I free my GPU memory in Ubuntu 14.04?

How can I free my gpu memory as much as possible? Currently there seems 400+ MB of GPU ram to be always occupied! How can I free these ? Wed Feb 24 21:48:33 2016 +---------------------------...
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1answer
30 views

Graphic elments fall apart after install new RAM

I have installed a new RAM module and after that graphics elements in Unity are falling apart. (See attachment.) In some applications this problem appear, but non in others (ad.: in Chrome). I ran ...
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15 views

Lock application data to swap

Is it possible to lock the app data in swap? App data: it means the data loaded by operating system to the ram to run it. I am using Ubuntu 15.10 and my laptop has only 2GB ram. I am thinking that ...
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2answers
86 views

Which system folders can I mount to RAM drive safely?

I recently made a full installation of Ubuntu 15.10 to a USB drive. In order to make it faster, using RAM, I made /tmp folder to mount on RAM on boot, by adding this line to fstab: tmpfs /tmp tmpfs ...
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16 views

How to find the first device address of request using blktrace?

I have traces of running an "f2fs" on an usb-drive. I would like to use them as inputs to DiskSim. DiskSim requires the first block number that has been traced. Is there a way I can find that by ...
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95 views

Ubuntu 14.04 64 bits - Only half of the RAM is recognized

I have 8 GBs of RAM (2 4 GBs memory sticks) in my computer. They are recognized by Windows 10, the "memtests" and the BIOS, but Ubuntu doesn't show more than 3696 MBs. I already tried several ...
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136 views

High CPU load, low core usage, (ECC) memory error in kernel

I am having a super weird behavior ... The CPU load of my computer goes through the roof (>4 on a 8core machine) but there is no process that is taking much CPU (see attached image) Though the 8 core ...
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47 views

Hard freezes when RAM is exceeding

I have 8GB RAM, when memory is exceeded (chrome + vbox + something else): hard mouse freezes permanently lit SSD led in 90% of cases I can't login in tty, system without any response, necessary to ...
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40 views

Drop cache pages and memory (cleaning the cache) as normal user

Some times I need to clean the system cache by doing the steps below: sync su echo 3 > /proc/sys/vm/drop_caches as you can see, I need root privileges for this purpose. Is there any way to do ...
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567 views

Ubuntu settings after adding additional RAM

My system has 3.8 GB of ram. My system allows 8 GB of ram. If I insert another memory chip of 4 GB, do I have to make any other changes in OS setting etc?
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11 views

What is the max supported RAM by my system hardware? [duplicate]

I ran dmidecode command and it gave me following output: # dmidecode 2.12 SMBIOS 2.4 present. Handle 0x1000, DMI type 16, 15 bytes Physical Memory Array Location: System Board Or Motherboard ...
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2answers
249 views

Out of Memory Issue

I am running Ubuntu 14.04LTS on a Dell PowerEdge R730 with 32 GB of RAM and an Nvidia K80 GPU.. I have a python script that runs for a long time, but really just makes a bunch of relatively short-...
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1answer
261 views

Ubuntu 15.10 - high ram usage

I am writing because I have no idea what going on with my favourite os, Ubuntu 15.10 with the kde desktop. The problem affect ram usage in normal work (chromium/firefox browser with few cards and ...
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1answer
41 views

Abnormal usage for memory

These days, my linux VPS is very slow, for that I've installed htop package using apt-get to see what is happening to my server. When I opened htop, I see that my server is using approximatively 700 ...
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44 views

Ubuntu 14.04 installation stops when copying files

I have the following system config i5 processor, 4gb (2+2) ram, 1gb graphics card, 500gb hard disk. I tried adding another 4gb ram to my system. So I added the newly bought 4gb ram into my pc and ...
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3answers
234 views

reinstall of OS after decreasing memory

Do I need to reinstall OS after decreasing memory (RAM)? Originally I had 8GB while now only 4GB. OS: Ubuntu 14.04.3 LTS Linux p6-2315el 3.13.0-76-generic #120-Ubuntu SMP Mon Jan 18 15:59:10 UTC 2016 ...
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222 views

Failed to alloc mem for ROM

So recently, I've bought the HP Pavilion x2 detachable. It came with Windows 10 but I wanted to install Ubuntu on it. I tried to install Ubuntu 15.10 but every time I tried to do that, the computer ...
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121 views

MySQL gradually taking up more and more memory

Just to start with, I have read the following threads and they do not help: Optimising MySQL settings - mysqld running out of memory MySQL Server keep shutting down http://stackoverflow.com/questions/...
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65 views

System freezing after upgrading to 32 GB RAM (update)

I have recently upgraded my Toshiba Tecra W50-A-114 from 16 to 32 GB RAM (added 2x 8 GB modules of Kingston KTT-S3CL/8G that is certified to use with my laptop). I did clean installation of 64 bit ...
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1answer
8 views

Kubuntu, Flex mode ram and intel graphics

I'm running Kubuntu 15.10 and I have a Gigabyte GA-G41M-Combo. I'm using the integrated Intel graphics. I'm trying to use a 4Gb ram stick and a 2Gb (different speeds). Both memories work fine by ...
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48 views

Memory and swap full from Rails App on EC2 Ubuntu Apache Passenger

I am not familiar with htop or ubuntu processes but my app's memory is full almost immediately after rebooting. Each of the rails processes seem to be taking up 25% of my memory. I recently upgraded ...
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52 views

Ubuntu Memory Low

When I SSH in, my memory usage is at57%. It looks like I have very little RAM available but I don't think that was the case before... ubuntu:/etc/projects/myapp$ free -h total ...
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17 views

Does Ubuntu have a Windows SpeedBoost feature?

My computer only has 1GB of ram and I want to run a Minecraft Server which requires more ram. Can I use something like Windows SpeedBoost?
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0answers
41 views

How to extend the virtual memory in Linux?

I have a 1GB ram pc, is there a way to extend virtual memory? I cannot do anything because my pc is moving horribly slow. I am planning on buying a raspberry pi b+ and really need it fast for a server....
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0answers
12 views

Erase swap memory storage when app load decreased

I have enough RAM for most purposes, but sometimes I inevitably get carried away with the number of apps and tabs I have open, pushing short-term memory storage into swap. I'll then do an inventory ...
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1answer
116 views

Linux overwriting RAM with zeroes on free()

I was just wondering if it is possible to tell Linux/Ubuntu to overwrite freed memory with zeroes before letting the next application allocate it? If not, why isn't this possible? I know that ...
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1answer
94 views

Unable to set default value for swappiness

I have an Ubuntu 15.04 64bit with 4GB RAM. I do not have a separate swap partition, but a swapfile of 8GB. The system recognizes the swap. I have tried to set swappiness to 15 by adding it to the ...
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0answers
24 views

Does Ubuntu write to certain memory addresses?

I have some options in BIOS setup that allow caching video BIOS, system BIOS and video RAM to C0000h-C7FFFh, F0000h-FFFFFh and A0000h-AFFFFh, respectively. Does Ubuntu write to these locations? (Doing ...
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1answer
5k views

Performance Ubuntu 14.04.3 LTS vs 15.10

I am running now on Windows 7, but i am thinking about going to Linux (Ubuntu), i have experiences only with debian (VPS) yet :) But i like Linux, so i would like to have Ubuntu as my primary desktop ...
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1answer
132 views

Why is Lubuntu slower than Kubuntu (in the same machine)?

I have a FS Amilo laptop with 2GB of RAM. I have Kubuntu, Lubuntu, and Puppy Linux installed on it. I chose Lubuntu for speed, but my experience isn't as smooth as I expected. The desktop ...