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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28 views

Is it worth it to upgrade my ram?

I currently have a 1.9ghz amd processor and 4gb of ram. I'm wondering if it would actually make ubuntu ui faster if I upgraded to 8gb or is it not worth the bother with my current processor?
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0answers
10 views

Heap Memory usage Linux Vs Windows

Why java application get more heap when it run on Linux Ubuntu, rather than windows? about 4 time larger heap size!
0
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0answers
14 views

Difference between System monitor and free -h

I have a Lenovo T430 laptop with 3.7GB of RAM. Since I started using this machine I observe the following strange behavior. If I do a lot of things, say have rails server running, a few nodejs ...
19
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5answers
20k views

How do I use zRam?

I installed zRam as described on webupd8.org. I installed it from the terminal. Is that all I have to do or do I have to do some configuration or something? Does the zram-enabler do everything by ...
0
votes
2answers
50 views

RAM vs UBUNTU probem

I have a problem with Ubuntu's memory management. I am running 32-bit Ubuntu 13.10. My system is only running Chromium. However, when I run free -m, it returns: total used ...
0
votes
1answer
27 views

Ubuntu Linux 14.04 LTS Server Edition information need

I was wondering what's the maximum RAM, and maximum CPUs does the Ubuntu Linux 14.04 LTS Server Edition can handle. I found a server computer I want to buy, which is a SuperServer 4048B-TRFT. I don't ...
0
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1answer
2k views

System Log: Bios may corrupt low RAM, working around it

I really hope someone can assist me with a good answer. I am running Ubuntu 10.04 (not sure about kernel). Asus Motherboard 1TB Hard drive 16G Memory The whole computer is brand new, only like ...
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0answers
27 views

how much do i really need?16gb or 32gb? [closed]

I am planning on getting a "BLU" phone. I have narrowed it down to the blu "life pure" with the 32gb of memory/ram, and the blu "vivo iv" with the 16gb. I know 16 is a boat load but on the phone I ...
3
votes
2answers
1k views

How to increase the disk space of an Ubuntu VMWare guest, without the cd?

I powered off the VM and on the VMware side increased the allocated disk space. I did this by Edit Virtual Machine Settings -> Hard Disk -> Utilities and so forth. It then warned me that I should ...
0
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1answer
31 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) ...
2
votes
2answers
100 views

Light alternative for Unity clock applet (netbook)?

Default clock applet is heavy based on evolution ( I think it is provided by this package )indicator-datetime. For this reason, on on Ubu 14.04, it is sucking about 30mb of ram ( as for htop info ) ...
0
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0answers
19 views

RAM allocation on PC

I am planning to buy a Windows Laptop with 8GB RAM running Win7 64bit OS. Need your help to understand before I buy this. QST: My requirement is Ubuntu should run on 8GB RAM. If I install Ubuntu, can ...
0
votes
1answer
47 views

I only have 1GB of ram, what can I do to improve the performance on my 32-bit 14.04 system? [duplicate]

I'm running a fresh install of Ubuntu on an old iMac. It was going painfully slow on OSX so I wiped that and installed Ubuntu overtop of it hoping it would speed things up a bit. I'm not going to be ...
0
votes
0answers
7 views

ubuntu 14 on vps processes keeps getting killed

I've just bought a vps from ipxcore. When i try to run bitcoind it gets killed after about 10s. dmesg retruns nothing at all, also strange! Any idea what might be wrong? Checked memory usage with ...
0
votes
1answer
33 views

How to increase video memory in Wine? (Wine version 1.6.2)

I'm trying to run a program(BeamNG.drive) on Wine 1.6.2, and there seems to be a problem. See, here's the thing: I can actually get it to load most of the way. But just before it would have finished ...
0
votes
2answers
117 views

What swapfile size to make? I have 4GB RAM [duplicate]

Very often I am out of memory and I noticed that I didn't have swapfile... What size should I choose? I have 4 RAM. All programs which I use are: Firefox, Thunderbird, Grive, Android Studio, that's ...
3
votes
1answer
29 views

How do I check ram latency?

I need to buy new RAM . First I need to know speed >> done Second I need to know latency >> how ? All I tried from google. dmidecode --type memory dmidecode 2.11 dd if=/dev/zero of=/dev/sda2 ...
12
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1answer
770 views

How to tell what kind of RAM is used?

I recently added another RAM module and while it is supported by my motherboard I'm not quite sure if it's of the same type as the one my notebook shipped with. How can I tell what RAM modules are ...
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0answers
12 views

what are present minimum hardware requirements 14.04 lts [duplicate]

Searched the Ubuntu site and the web and only came up with older version system requirements. Could somebody please lead my to current minimums, and where to find them. Seems like that info should be ...
0
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0answers
22 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 ...
104
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18answers
56k views

I have 16GB RAM. Do I need 32GB swap?

I read many places that the rule of thumb for swap space is to double the amount of physical RAM. However, 32 GB does seem a LOT. Do I need that much? Do I need it at all with this high amount of ...
0
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0answers
20 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 ...
2
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2answers
169 views

Ubuntu does not detects the RAM correctly

I have 512MB RAM in my PC. Ubuntu detects only 495 MiB. How can I fix this? On Debian Squeeze, I have 512MB.(The correct size) OS: Ubuntu 12.04 Precise Pangolin
3
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2answers
189 views

Combining two laptops to increase memory

I have two laptops with the following specs and I want to connect them to increase memory so that I can increase the performance of the scientific calculations that I need to do at home. HP Pavilion ...
0
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0answers
26 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 ...
3
votes
1answer
62 views

How to set a memory limit for a specific process?

I tried to execute mpiexec -16 ... on a 384 GB RAM server, but it induced OOM Killer and was aborted. How can I set a memory limit for mpiexec execution? I know ulimit, but it might affect other ...
38
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6answers
60k views

How can I monitor the memory usage?

I have used top to see the memory usage at the moment. But I would like to monitor the memory usage over a period of time. E.g start monitoring and then execute a few commands, and final stop the ...
5
votes
2answers
12k views

How do I make a RAM disk?

I want to make a partition that is made of ram ... Example In windows 7 you can make a partition that is made of ram I have created 1 GB of partition in ram . using Primo RamDisk Is there any ...
0
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0answers
68 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 ...
0
votes
0answers
17 views

How to set up a ram-disk [duplicate]

I need a RAM-DISK to move data between two applications and have been using Google to learn about it. I have found articles that talk about tempfs and /dev/shm. Apparently /dev/shm points to ...
8
votes
3answers
6k views

Computer freezing on almost full RAM, possibly disk cache problem

The problem I think is somewhat similar to this thread. It doesn't matter if I have swap enabled or disabled, whenever the real used RAM amount starts going close to maximum and there is almost no ...
1
vote
1answer
81 views

What is recommended size or ram for ubuntu 64bit virtualbox host?

I want to use ubuntu 14.04 64bit as a host to run virtual box. Some places say that the minimum ram requirement for ubuntu is 512mb where as on the downloads section it says that 64bit is only for ...
0
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2answers
68 views

Can't find where memory is being used

I'm still a novice with Ubuntu, and have converted an old Toshiba L655D to use the OS. I have 3gb of memory installed, and this appears on on the GRUB memtest. But within Ubuntu, looking at free -m ...
0
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1answer
69 views

32-bit PAE - Only 2 GB of ram recognized, 4 GB installed

Ok, there are a lot of this question and still I don't have an answer, so maybe I give it a shot asking the question. I recently bought a 2 Gb RAM and put it into another DIMM slot. So now I have 4 ...
6
votes
2answers
108 views

How much RAM is this application using?

If I run top -c or htop I get processes with their memory consumption, but it is not what I want to see. Is there a command line that allows to see the RAM consumption of a given application ? For ...
0
votes
1answer
39 views

Random reboots/shutdowns after RAM upgrade

I'm running Lubuntu 14.04 on an old Dell Dimension 8200. After installing two 512 MB RAM chips (essentially increasing the RAM form .25 GB to 1.25), the system randomly shuts down or reboots. Is ...
0
votes
0answers
33 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. ...
0
votes
1answer
26 views

Use/See whole the flash memory space [closed]

When we bought a N Giga Byte flash memory, the free space that the OS provide for us, is less than N GigaBytes. For example, for a 2 GB flash memory, total space that we can use, is 1.86 GB. As far ...
1
vote
0answers
38 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 ...
0
votes
2answers
874 views

Ubuntu 14.04 (amd64) not detecting all of my memory

I've got 4gb of RAM installed in my machine but Ubuntu only detects 2.8gb of RAM If I run uname -a I get: Linux DeLillo 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 ...
1
vote
2answers
41 views

CGroups memory subsystem

I want to know if I can set dynamic limits to the memory subsystem in a cgroup. Currently I have the OOM disabled and a dummy process to test the control group, when the limit in memory is reached, ...
1
vote
2answers
1k views

Secure shared memory

In my Ubuntu deployment script I have written a function to secure shared memory. For a web server it's important to secure the shared memory to tighten up security. Below you can find the code: echo ...
8
votes
6answers
16k views

How do I find out if I have a swap partition on my hard drive?

I used the 12.04 live cd to install Ubuntu over my Windows 7 partition and deleted everything so I just have Ubuntu on my laptop. But since during the installer I chose the simple "erase entire disk" ...
1
vote
0answers
18 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 ...
0
votes
2answers
29 views

Ubuntu 13.10 (32bit) on acer aspire one

Has anyone ever tried Ubuntu (32bit) on an acer aspire one d255 2dqkk with 1GB of Ram or 2GB? At the moment I have 1GB installed and I would like to add 1GB more.
6
votes
2answers
2k views

How to make ubuntu use more RAM?

After 2 weeks of trying, failing, trying again, still failing, I finally got Ubuntu stable and operational. My hard disk is quite old and slow but I have excessive RAM (16 GB 2133 mhz), so I was ...
1
vote
1answer
192 views

/dev/sda1 /boot is full [duplicate]

I know there are a lot of questions like this but I've tried pretty much to understand what to do and failed. By df -h I know that my /dev/sda1 /boot is with 100% use. I'm not understanding what I ...
6
votes
2answers
9k views

fork: Cannot allocate memory

I am frequently getting: fork: Cannot allocate memory when running commands over ssh. I have 4 GB of RAM and usually 2 GB free. This started happening since I upgraded to Ubuntu 11.10. I then need ...
2
votes
3answers
582 views

Why does my system use so much cache?

Previously, on my desktop computer running Ubuntu 14.04, I had 4GB RAM, which I thought should be plenty. However, after being on for a while, my computer would seem to get slow. I have a system ...
1
vote
1answer
68 views

Help with ram usage

I have a dual boot laptop with 512 MB RAM running Windows XP/Xubuntu. I try to load student.portal.chalmers.se (a huge bloat site) in Firefox. On XP, I can load the site without any swapping, but ...