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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Can only access 1.9 gb of RAM on Ubuntu 12.04

So I installed Ubuntu 12.04 (edit: 64-bit) on my PC. My PC had 4 GB of RAM installed, which the BIOS recognizes. It also displays when I type uname -m, so the OS knows it's there. However, according ...
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177 views

Can I have a Ubuntu 12.04 live usb work with both the -persistance and -toram additional boot options?

I really like using the Ubuntu 12.04 live CD/USB's "-toram" additional boot option for my laptop because "-toram" adds a few extra hours to the battery and makes things a little faster. I add the ...
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150 views

unity-music-daemon uses large amount of memory

When I boot my Ubuntu 13.04 up, I noticed that my fans goes crazy and when I had a glanced at System Monitor, I saw that a process called unity-music-daemon is using a large amount of memory and CPU. ...
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732 views

Is there a default limit to the amount of memory a process may use?

Running 64-bit Matlab 7.12 on a 64-bit 10.04 Ubuntu Server. When I try run a big problem that should need 46GB of memory (the server has 72GB of Memory and plenty of swap space), the experimental ...
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814 views

Ubuntu 12.4 on 3.4.45 kernel: Can't access USB memory stick

I installed kernel version 3.4.45 [LTS] on ubuntu 12.4 on a Acer laptop. With this configuration, the USB memory drives can't be accessed, some details are follows. Upon inserting the USB drive dmesg ...
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130 views

Why do I run out of memory even when nothing is running?

I am currently facing a problem that when I run Uclust, it keeps showing me mymalloc running ot of memory. The thing is that cuurently nothing is running in the system and my memory shows I am ...
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217 views

Ubuntu 12.04 tilts when trying to open large excel file with libreoffice or matlab

I have an xlsx-file of size 27.3MB and when I try to open it either in Libreoffice or Matlab the whole system slows down My processor is AMD Sempron(tm) 140 Processor (should be about 2.7Ghz) Memory ...
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260 views

Anything sync daemon for Ubuntu?

Is there a utility providing similar functionality to Anything sync daemon for 64bit Ubuntu? Preferably in the repository or with a PPA. In particular, I'd like to stop Firefox from constantly ...
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169 views

Problem with the allocated partition memory

I installed ubuntu 12.04 using wubi on to a 60GB partition. I installed Qt sources, which are a couple of GB in size, but once I start commpiling it started complaining about lack of memory. I ...
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27 views

huge cached memory, mostly freez system :(

I have a problem with system memory cache, i think it is bigger than normals. after 5-10 minute of usage, system become unusable and i must restart my "Asus X451-CA" laptop. this command ran upon user ...
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15 views

Why does it state that *-cache:1 DISABLED at lshw command

It seems like my memory is working correctly but I am puzzled by the output of the following command. Is the memory disabled and how do I go about testing it if it may be. $ sudo lshw -C memory ...
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59 views

Why can MySQL not use /run/shm as tmpdir?

I read that using RAM for MySQL's temporary tables should improve performance. I tried to create /etc/mysql/conf.d/local.cnf with the contents: [mysqld] tmpdir = /run/shm But restarting mysql ...
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17 views

Why is my launcher automatically set to default and personal keyboard layouts disappeared?

Yesterday, I was using a program to read something into the RAM, but underestimated the size. My computer started swapping and lost itself in its calculation, hence I killed the process (and firefox ...
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48 views

Oneconf eating up memory while in chrome

When I look at the dependencies in Synaptic, it shows Ubuntu desktop, and software center as being dependent on oneconf, and I do not wish to remove these. However whenever I get to a page which has ...
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39 views

System running very lagish and slow-responding

The system is very slow to respond, and wherever I click, the window appears slowly (almost as if its transparency is reduced). The specification is: -OS: Ubuntu 13.1 32-bit -Memory: 1GB -Processor: ...
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26 views

Virtual memory or swap memory on ubuntu installed by wubi installer

I am using Ubuntu 32 bit which I have installed inside windows 7 with wubi installer. I have noted that my Ubuntu swap memory is only 256MB and my ram is 2GB. I have tried my best to gain swap memory ...
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125 views

ubuntu 12.04 Init process provokes memory leak and CPU intensive usage

I have lately been having some memory and CPU issues with init process. After rebooting, the memory used by it keeps increasing at quite high pace, and after half hour it occupies all the memory RAM ...
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101 views

Out of memory when booting ubuntu or any linux distro from LIVE USB

Scenario: I had ubuntu 13.10 installed. tried to boot with a windows usb windows setup frozen after selecting "Delete" on an empty ntfs partition restarted the laptop with power button Now when i ...
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518 views

php-fpm high memory and cpu usage

My Real Ram and Virtual Memory is of each 1 GB. but php5-fpm uses very high memory approx 885MB. I searched for solutions but there is no effect. I have wordpress site and currently at a time there ...
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103 views

Ardour Memory Limit Warning

I get this warning from Ardour. I'm running on 64-bit Ubuntu 13.10, envy 14. 8gb of ram (That I know my motherboard can take because it works on windows). "WARNING: Your system has a limit for ...
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205 views

init has huge memory allocation after time - ubuntu 13.10

init process is taking huge amounts of memory. It starts normally with about 2 MB and if I kept the laptop running for half a day, it would reach 1.5 GB!! Which slowly kills the performance, and ...
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115 views

Kernel netfiler module not working as expected

I am developing a kernel module for source port translation using netfilter hooks. The code was tested on Mint 3.8.0-31 and Debian 3.7.2-0 both on same Asus machine. And works exactly as expected. ...
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132 views

Ubuntu crashes with high memory use without swapping

I'm running some memory intensive calculations on Ubuntu 13.04. I have 8 GB of RAM, and a swap partition with the same amount of memory. The hard disk and swap partition are encrypted. › free -m ...
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210 views

Automatically kill Chrome processes that exceed RAM limits

I've sought advice from similar threads here, and I'm either not reading them correctly, or my brain is currently fried. My Prior Reading: Automatically kill a process if it exceeds a given amount ...
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47 views

Drivers are not detected on ubuntu 13.04

My memory card reader and bluetooth do not work on ubuntu 13.04. Is there any solution ? lsusb output is this : Bus 005 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of ...
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61 views

How to persistently limit resources of a program

I am running several programs on my computer and under normal circumstances my RAM (2GB) and CPU power is sufficient. However it occurs that a single program suddenly turns the system permanently ...
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581 views

How could I boot my installation of Ubuntu 13.04 in ram?

Just like in the live cd using squashfs of the system. I think that it could boost the general speed of the whole os by putting it on the ram. This wiki is outdated, maybe: ...
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66 views

New Fonts breaking Wine

I'm running Photoshop CS2 in Wine because, well I'm not a fan of the gimp sorry. It's been perfectly stable up until today when I installed a couple of new fonts and now it is running out of memory ...
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206 views

High Cache and slow Fallout 3 (wine) on Ubuntu 64bit 12.10

My Setup: Sony Vaio VGN-FW11E with Radeon HD 3470 (tech spec) 3 GB RAM Ubuntu 12.10 64bit The Problem: After a few minutes of gameplay the game is going down in speed to very slow. After quitting ...
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119 views

Disk cache is sometimes dropped/erased

I have a memory/cpu monitor running, and sometimes see the graph line for “cached memory” drop, for no apparent reason. Earlier today Cache memory was at about 4.8GB but then dropped in two steps ( a ...
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45 views

Linux kernel: page substitution policy

I am supposed to answer for homework which algorithm is implemented in Linux for the virtual memory page substitution and also give some extracts of the code to prove that. After some research I have ...
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262 views

I/O memory conflicts

I recently bought a Arctic MC101 barebone (http://www.arctic.ac/en/p/living/office-pc/572/mc101-barebone-a10-4600m.html?c=2296) to run XBMC. I've installed Ubuntu 12.04 on this machine and the latest ...
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10 views

RAM upgrade freezes startup

I have A Toshiba Satellite m105 s 3041 that I installed latest Ubuntu. It is the only operating system on the laptop. It was running very slowly and I realized the minimum ram was 2 GB having only ...
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8 views

RAM usage in Chrome

I run quite a few windows and tabs open is Chrome on a regular basis and while on Ubuntu it seems to seriously bog my system down. 4gb ram and 4gb swap. This laptop is dual booted with Windows 8.1 ...
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17 views

Ram not recognized

I have an HP 255G1 laptop with Linux preinstalled. It came with 2 gb ram and as of late I installed another (HP certified) memory module, and now I should have 4 gb ram BIOS sees it, memory test ...
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21 views

GIMP memory increasing problem

I have a problem with GIMP in Ubuntu 14.04. When starting GIMP it works perfectly at first, but as soon as I copy a selection of pixels value in "system monitoring > resources > memory and swap ...
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62 views

Simple logging of ram usage on 14.04

I'm looking for a very simple logging program that will log ram usage over say 18 hours. I don't mind if it logs every minute or just records the peak usage. I don't need it to record any extra ...
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26 views

Why does ubuntu not seem to release memory?

I am working with apache2+php and other web server apps. I have monitor as session connecting to a web server. RAM memory is full. But when disconnecting a session, it does not free the RAM memory. ...
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51 views

How much Memory/RAM is really being used by this Ubuntu 14.04 system

How much RAM/memory is really being used by the Ubuntu 14.04 x64 system? From htop, the amount of memory used is 3 GB and swap usage (on SSD) is 5.7 GB. However it appears that the most memory hungry ...
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48 views

VMware Player RAM memory problem

I've installed windows 7 on ubuntu using vmware player. I have a 6 GB ram memory, so the amount of memory I've allocated for this virtual machine is 2520 MB. But when I look in the "system monitor" on ...
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44 views

ubuntu 14.04 works full load

I have X61 lenovo - cpu T7200 dual core and 4 gig memory ! I installed ubuntu 14.04 and did all updates and deactivate all animations and the full search. however, still just opening four tabs on ...
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23 views

Random Crashes Ubuntu 12.04

Every once in a while my Mem and CPU max out. In looking at the syslog I found Jun 25 01:45:30 id-llc-projects CRON[29889]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) ...
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66 views

XFCE is consuming much RAM

I am using Ubuntu 12.04 LTS and have 9GB RAM. So I had Unity desktop environment, and then I installed xfce4 and xfce4-goodies: sudo apt-get install xfce4 xfce-goodies Then I removed Unity using: ...
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0answers
112 views

Ubuntu 12.04 server: Problem with apache internal processes using too much memory?

I've looked around and couldn't find an answer for this, tried quite a few of other people's solutions over the months, but nothing fixes this. I run 12.04 on a good VPS, but I've been having some ...
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0answers
45 views

Memory and the OOM killer problem

I got a laptop with 4GB memory and 14.04, and I see regular OOM KILLER that kills processes and high CPU from swapd but swap is almost not used. But I want to understand this happens and/or how I can ...
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143 views

Xen PCI Passthru works with 2GB RAM but not with 4GB RAM

I set up Xen on Ubuntu 14.04 (Xen 4.4). With my config I can only use PCI passthru when giving DomU 2048MB RAM. When giving 4096MB the GPU doesn't work (windows says Code 12). Here is my win7.cfg: ...
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147 views

Upgrade to 14.04 Memory Allocation Problem

Recently did a fresh install on my laptop to 13.10 to prepare for the LTS release. I started the upgrade process when the updater prompted and read a book waiting for it. When I checked on the ...
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27 views

Dev box: no swap space to speed up OOM killer

The TLDR: I do bad moves that flood the RAM, I'm curious whether having no swap would spare me the half hour wait for the OOM killer. Before deploying a few machines with a hacky config, I'd like the ...
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311 views

Ubuntu high memory usage

I am using Ubuntu 12.10 . When booting the RAM that is used is about 1-5 GiB. However,after a while when I use chrome and Skype the RAM used is about 4 GiB.(My pc has only 4 GiB RAM). I am not sure ...
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0answers
43 views

Ubuntu NAS, cache files to ram for enhanced transfers?

I have a little dual core celeron computer that I will be using as a NAS. I have 8 GB of ram, and I was wondering if there was anyway to leverage that ram to increase file transfer speeds, especially ...