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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No 100% Memory Usage

I've 4 GiB RAM, and System Monitor shows 3.8 GiB. I think 200 MiB is for GPU. But I've never seen Memory usage more than 3.0 GiB. If memory usage is close to 3 GiB, it uses Swap, and when it reaches ...
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2answers
12 views

Restricting resources of user applications

Sometimes, either because of a memory leak or the computationally-intensive nature of a program, applications can start to slow down and ultimately freeze the whole system by claiming too much RAM or ...
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1answer
60 views

More disk read/write after decreasing swapiness

I know this may sound absurd but my laptop has Xubuntu Saucy with 4GB RAM. I decreased swapiness from 60 to 7 but now applications take more time to launch and I see disk i/o before the application ...
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0answers
15 views

cached memory wont clearing up

For some reason my desktop pc which is running Ubuntu 14.04 don't want to clear the cached memory up. I find this strange because my laptop is clearing cached memory up as soon as possible. I'm ...
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0answers
30 views

Amount of memory changed?

I've noticed that the amount of memory in Ubuntu 14.04 has changed, when I view the output of free I notice that it says 16304096. I find this weird because it was 16304120. After I booted in a older ...
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1answer
24 views

some ubuntu steam games use more RAM than windows version

Why some steam games (as XCOM Enemy Unknown) need more RAM memory on Linux than on Windows? Minimum requirements for Windows are: Windows Vista / 2GB RAM and for Linux are: Ubuntu 14.04 (64 bit) and ...
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1answer
146 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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2answers
11 views

Does Zombie process cause memory shortage? Does it killed by init process eventually?

I have zombie process problem and it's a first time i've met..So I don't know how to solve this problem and concept. I read some article posed 1 year ago. and It said like below link : What is ...
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0answers
17 views

how can i fix duplicated files on ubuntu? [closed]

im running ubuntu 13.10 and have a 3 TB harddrive so it "never fills up." well its filled up and i cant figure out why. when i look at the disk anylizer it basically says the issue is my home and user ...
0
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1answer
17 views

Will RAM manage the peripherals or they will have separate memory?

In a LINUX system the Virtual Address Space is 4GB here as the Physical Memory depends on the RAM which we are using. For example I have a system of 1GB RAM and my Monitor requires 256MB in-order to ...
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0answers
52 views

Invalid memory info showed by lshw and dmidecode (DDR2/DDR3)

I'll be grateful I someone would tell me why my Ubuntu (14.04) shows invalid memory information? I have installed DDR3 memory (and also my BIOS reports it as DDR3), but commands shows info about DDR2. ...
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1answer
46 views

How to find out which programs are taking up alot of memory?

I've been getting messages that I have exceeded my quota limits. I am new to Linux and am not sure what to do. With windows, I could easily just go to Control panel, add/remove programs, and uninstall ...
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1answer
41 views

ubuntu 14.04 is slow @ 12gb Ram

Recently I was upgrade my ubuntu to 14.04 ,after that for any event(copying a file or running any application)it is only consuming 3gb of memory only . it is not able to use my entire Ram .Due to ...
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3answers
3k views

Is Ubuntu 32-bit only for systems with “less than 2GB RAM”?

On the downloads page, you have the following two options: 64-bit 32-bit (for machines with less than 2GB RAM) Assuming you have a 32-bit machine with the maximum 4GB of RAM, will Ubuntu ...
0
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0answers
37 views

Does VM require Swap? su: fork: Cannot allocate memory

We have Mysql Server in AWS environment in Ubuntu 14.04. Recently our server lost new connectivity like ssh, or scp any connections due to cannot allocate memory. And my existing connectivity to ...
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0answers
13 views

How can I have tcpdump write to a memory buffer rather than file?

This script I wrote to suspend my media server when not in use. I know there are probably more efficient ways to write this, but I am a beginner. This is really my first script I've ever written. I ...
2
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2answers
42 views

32 or 64 bit, which one is suitable for 3GB RAM but legacy specs? [on hold]

Well, today when I headed to download page, there were 3 options for me as follows: 64 Bit 32 Bit (for machines with less than 2 GB RAM) 64 Bit Mac (AMD64) I know that you need a good system to ...
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0answers
55 views

Ubuntu 14.04 detects 4 out of 8 GB of ram in dual channel mode

I have 2 x 4 GB sticks of RAM. My motherboard (Gigabyte GA-970A-DS3P) supports up to 4 sticks and 32 GB of memory in dual channel mode. However if I install my memory into the slots recommended in the ...
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1answer
35 views

Memory size reported by /proc/meminfo is less than my physical RAM

My laptop is having a total of 4GB RAM, but when I type /proc/meminfo it is showing only 2.5GB in Ubuntu 14.04. Why it is showing less memory than the actual?
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1answer
35 views

WIll ubuntu use my full ram in dual boot [duplicate]

When I run ubuntu in dual boot will I still be able to use my full 4 gb ram If i am not running Win 7 at the same time?
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0answers
31 views

Is it possible to suspend applications?

The main idea is to add a "suspend" button to the title(behind the "quit" cross button) of the application window that will copy the memory taken by application to swap/local storage with pid ...
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1answer
21 views

Cannot install g++ 4.8 on OpenVZ

I have everything set, but doing apt-get install g++4.8 gives me the following java (!?!?!?) related error. Setting up ca-certificates-java (20110426ubuntu0.10.04.2) ... Error occurred during ...
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2answers
44 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 ...
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3answers
24k views

How do I clean or disable the memory cache?

After the system starts, in a few minutes my memory cache fills up and it starts using the swap. Here's a screenshot of /proc/meminfo. However, if I can disable this process / clean the cache once ...
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1answer
45 views

Is it worth it to upgrade my ram? [closed]

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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1answer
35 views

How to utilize full ram memory

Im using Intel® Xeon(R) CPU E5-2680 0 @ 2.70GHz × 18 processor $ free -m total used free shared buffers cached Mem: 128899 15893 113006 24 ...
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0answers
65 views

enabling swapping cripples system

I am having a strange issue. Essentially, when swapping is enabled (on a swap partition), the system becomes unusably slow even at times when no swapping is in fact occurring. For example, when ...
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0answers
22 views

Difference between System monitor and free -h [duplicate]

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 ...
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5answers
21k 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
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1answer
55 views

RAM vs UBUNTU probem [duplicate]

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
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1answer
43 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 ...
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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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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
54 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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2answers
116 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 ) ...
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0answers
20 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
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1answer
64 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
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0answers
15 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
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1answer
86 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
210 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 ...
13
votes
1answer
813 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 ...
0
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0answers
34 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 ...
105
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18answers
60k 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
25 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
172 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
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2answers
198 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
33 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
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1answer
95 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 ...
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6answers
65k 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 ...
6
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2answers
13k 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 ...