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.

learn more… | top users | synonyms (1)

-4
votes
1answer
33 views

Slowest OS of the major three [on hold]

Why is Handbrake not as fast in Ubuntu 15.04 as Windows 7 or Mac 10.10.3. Same version Handbrake, and completely identical hardware?
-1
votes
0answers
8 views

ram usage is too high after update fglrx driver

yesterday when i update my computer it asked new version of fglrx driver available to use? so i choose new version. after i notified my ram usage is too high so my computer is too slow and stuck for a ...
0
votes
0answers
13 views

Unable to find an initial ram disk that I know how to handle

After upgrading to the next linux image, aptitude has outputted the following lines: Setting up linux-image-3.16.0-38-generic (3.16.0-38.52~14.04.1) ... Running depmod. update-initramfs: deferring ...
8
votes
3answers
14k views

For a 32-bit kernel, what are the pros/cons of PAE vs. non-PAE?

I am using Ubuntu 12.04 32-bit. My kernels are PAE kernels. I know these are the kernels we can use for 32-bit OS which have 4 GB RAM, to utilize all 4GB of RAM. My system is a 32-bit system. So I ...
7
votes
5answers
63k views

MicroSD card is set to Read-only state. How can I write data on it?

I have a MicroSD card reader in my notebook. When I insert a MicroSD memory card into it, I can't write any data on it - it's read-only. The same thing happens when I try to do it under root. And I ...
0
votes
1answer
76 views

Zcache Usage in Lubuntu

Recently I appended zcache to my grub configuration: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash zcache" But I am at a loss as to whether zcache is working or if I need to do something else. There is ...
0
votes
1answer
27 views

How do I find out why I get anytime the same error message from an original Ubuntu script?

Swap2Ram.sh always produces its error message, even when I have enough ram left. Any ideas? #!/bin/sh mem=$(free | awk '/Mem:/ {print $4}') swap=$(free | awk '/Swap:/ {print $3}') if [ $mem -lt ...
0
votes
1answer
28 views

ZRAM vs. regular swap partition

I don't fully understand the functionality and the potential advantages of zram. For example: once zram is activated, what percentage of memory will be dedicated to paging? Another issue: obviously ...
0
votes
2answers
21 views

How to allow a process to use more memory

I am trying to run a game on Steam at a decent speed. I exceed the system requirements for this game, and the game is already set to minimum graphics, but it is still running slow. I have been using ...
2
votes
2answers
76 views

My computer halts for short times intermittently. Is it related to my fan making a lot of noise?

I have two problems with my computer. The system is halting for short times intermittently so the computers becomes almost impossible to use for short times that can happen just when the computer ...
0
votes
1answer
657 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. ...
10
votes
3answers
9k views

How to find how much RAM does my computer have?

How do I find out how much ram my computer has? I am running Ubuntu 13.04.
1
vote
1answer
18 views

Need help, computer not registering RAM [closed]

I built a computer out of an old case and parts that I ordered. Initially I got 4gbs of Crucial ballistix ram, and since I intended to use this computer for casual gaming I upgraded it to 8gbs. At ...
0
votes
0answers
14 views

fcitx process using more memory

yesterday i activated onscreen keyboard after notified fcitx process use 2600 Mb of ram so my machine is super slow,but everything is ok when i kill that process,what is this fcxti process and what ...
0
votes
0answers
24 views

How to monitor the effect of increasing or decreasing swappiness?

I'm on a system with 1.5GB RAM (don't laugh!), half of which is generally being used by Firefox. Currently, 3% of the 3GB Swap are being used (some 80MB). I tried to change the swappiness like so: ...
2
votes
0answers
97 views

ZFS - Always Out of Memory

I read that ZFS was set to use all physical memory except 1GB on systems that have 4GB or more. Since I have virtual machines running my home-server that is running the ZFS filesystem, I wanted to ...
-1
votes
0answers
21 views

How to display the 'percentage free' RAM usage using Perl Script? [duplicate]

I need to make a perl script which will display the percentage free RAM usage and the value should be able to be piped to another command. Appending into a text file should also be possible within the ...
0
votes
1answer
51 views

Various programmes crashing frquently - could be an issue with the system?

About a week ago Firefox started crashing very frequently, 20 to 30 times a day. On random pages, doing random things, sometimes even when it is minimised. I ran the updates and checked the system for ...
1
vote
0answers
45 views

Firefox eventually for no aparent reason consumes all CPU and RAM and grinds to a halt pulling my computer along with it

I now use Firefox as my default browser and have found that after having it up and running for several hours, that it starts to use up more and more of my CPU and RAM, and this does not appear to have ...
1
vote
2answers
45 views

Why does the system report 7.7Gb of total Ram when I installed 8Gb?

Why does the system report 7.7Gb of total Ram when I installed 8Gb? I'm using 14.04 on a Dell Vostro 2011
6
votes
2answers
3k views

Why runs evolution-calendar-factory?

Why runs evolution-calendar-factory? Here are some processes (created with ps aux --forest) lightdm \_ /usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch \_ lightdm ...
3
votes
2answers
179 views

Ubuntu and Live USB won't Boot after power cut 15.04 BTRFS

I didn't think this was a problem until it happened to me twice on two different systems and have never seen this before. First time I was running Xubuntu 15.04 on a Lenovo T61 using BTRFS. The ...
1
vote
1answer
42 views

Can I install Ubuntu 15.04 (Vivid Vervet) in place of Ubuntu 14.04 LTS and keep all my data (media, documents, etc)?

I have been using Ubuntu 14.04 LTS for the better part of a year, but lately I keep having problems with my OS. I repeatedly get a message about not enough space in the boot, and when I attempt to ...
0
votes
0answers
7 views

Boot Space memory allocation [duplicate]

I am unable to install new software, because the boot partition is maxed out. In my boot folder are included all the kernels installed. If I go into that folder and delete all but the current ...
1
vote
2answers
46 views

How to get a good overview of RAM usage

I have installed Ubuntu 14.10 on a server. The server main task is running a MongoDB installation along with several NodeJS applications. The NodeJS applications will run continuously and will accept ...
0
votes
2answers
38 views

Is it safe to delete a Swap Partition on a USB install?

I have a Ubuntu 14.04 installation on my 32gb USB drive. I recently read that having a Swap causes a lot of reads and writes to the drive making the OS slow and reducing the lifespan of the drive. ...
3
votes
0answers
128 views

Chromium build fails due to `out of memory` allocation

I am trying to build chromium content_shell. But it fails at the last linking stage because of out of memory. Error Log: [1/1] LINK content_shell ... /usr/bin/ld: out of memory allocating ...
0
votes
1answer
35 views

32 bit or 64 bit becauce of upgrade of RAM? [duplicate]

On an old Dell PC that originally ran Windows XP 32 bit that I erased the Windows XP 32 bit and installed Ubuntu 32 bit on with less than 2 gigs of RAM. I would like to upgrade the RAM above 2 gigs. ...
0
votes
1answer
43 views

Too much swap, how do I change it?

I'm new at Ubuntu and I'm fiddling around with Ubuntu Server 14.04. I'm trying to get it to run a Minecraft server, but whenever anyone joins, it starts skipping ticks and players reported heavy ...
5
votes
5answers
18k views

How to improve Ubuntu performance on netbook

Most recent Ubuntu 12.04 seems to be quite nice and Unity (3D/2D) works fine for me, however not on my old Acer Aspire One any more. There was a times, when I switched from Windows XP to Ubuntu and ...
0
votes
0answers
41 views

How can I make the apps in ubuntu phone using the SDcard instead internal memory?

Pls, if someone has an helpfull answer: When I download a video with "DOWN NOW", it goes by default directly into the internal memory. But as there is not enough space, so I need it to go the SDcard. ...
2
votes
2answers
1k views

How to add virtual ram on Ubuntu

I was just trying to play some games on Ubuntu with a 2 GB RAM and it does not run very well. Is there any way I could add virtual RAM from a flash drive?
9
votes
2answers
18k views

What is “cached” in the top command?

When running top, I get: top - 09:10:52 up 18:37, 1 user, load average: 1.56, 1.33, 1.15 Tasks: 39 total, 1 running, 38 sleeping, 0 stopped, 0 zombie Cpu(s): 0.1%us, 0.6%sy, 1.0%ni, ...
3
votes
1answer
55 views

Can Ubuntu 32-bit access 8GB RAM?

I need to use a large software package (Xojo) that requires the 32-bit architecture to run. Try as I might, I can't seem to install the 32-bit libraries on my 64-bit installation of 15.04. I don't ...
2
votes
2answers
6k views

Ubuntu 13.10 : VirtualBox crash problem

I have VM running with following configurations: RAM : 1000MB Video Memory : 128MB Enabled : 3D accleration Guest OS : Ubuntu 13.10 (guest additions) However my ubuntu is not working fine. I login ...
0
votes
0answers
24 views

All Networking disabled after RAM upgrade [virtual]

After running a rather large script file from the terminal I got a Java memory heap error. So I decided to try increasing the RAM to resolve the problem... However, after upgrading the RAM from 2048 ...
0
votes
0answers
19 views

Not Enough Memory to Analyze and Send Problem

I got this message: "Sorry, the program "soffice.bin" closed unexpectedly Your computer does not have enough free memory to automatically analyze the problem and send a report to the developers." ...
0
votes
0answers
39 views

How much use of swap space means that I should add more memory?

My system is slow and I am trying to figure out if I need more memory or a better system. I am using Ubuntu with 32 GB RAM. $ free total used free shared buffers ...
0
votes
1answer
37 views

Ubuntu sees 3 out of 4GB of RAM on PAE supported 32bit system

I have 4 gigs of memory inside my laptop but only 3 gigs are showing up and PAE is supported as shown below. Why can't I use all 4 gigs of memory even though my 32 bit system shows that it supports ...
1
vote
2answers
57 views

Why does Lubuntu shows less RAM than installed?

I am using Lubuntu 14.04 I have two sticks of 4 GB RAM, they work fine under Windows. But when I open the LXTask it says I have 7868 MB when it should show 8192 MB. Using no integrated graphics ...
0
votes
0answers
24 views

Ubuntu 14.04 randomly freezing [duplicate]

I have Ubuntu 14.04 running on a Thinkpad T440 with Intel Core i5 Vpro 4gb with Intel Haswell graphics but it is randomly freezing with no reason. Recently I didn't have made any big change on the ...
0
votes
0answers
35 views

How to increase Locked Memory size in Kubuntu?

I am trying to run Ardour in Kubuntu and I get this error: Your system has a limit for maximum amount of locked memory. This might cause Ardour to run out of memory before your system runs out of ...
19
votes
3answers
9k views

How to see the actual memory and its properties (slot position, size, speed…)

I have 2 PCs. A Laptop dv600 and an Intel dp35dp. I want a command that shows me how many slots of memory I am using, the size, speed, etc.. For the moment the size of each would be good. Maybe see if ...
1
vote
1answer
41 views

restrict memory usage to prevent swapping

I have an SSD and 8GB memory, and no swap partition. My normal use never ever needs more than 3-4GB. However from time to time I observed that some memory-leaking programs can still freeze the system ...
1
vote
1answer
2k views

How to create a Ramdisk and use it with Lightread?

I have created a Ramdisk for Chrome following these instructions: 1) Most of our commands require superuser privileges, so we might as well just switch to root. sudo su - 2) Edit your startup ...
5
votes
3answers
31k views

How to check for errors in RAM via linux?

I have ubuntu 11 running off a 3.6gb usb flash/stick drive. System has 4gb ram and blank harddisk (wiped using DBAN tool). How do i check if there are no errors in my RAM ? Is there a guaranteed way ...
0
votes
0answers
13 views

Where does the kernel file dump_pagetables.c dump the data of the page tables?

I m working on a project to do memory allocation in the kernel. I would like to know how the virtual memory is allocated presently in the dump_pagetables.c file.
0
votes
0answers
24 views

Get OS Process List with Volatility From a memory dump

I am wondering if anyone can help me I am trying to figure out how to get a count of the processes that were running in the OS process list using volatility from a ram dump. $python vol.py pslist -f ...
0
votes
2answers
598 views

How can I change the frequency of the RAM, and also know its value from Ubuntu?

I am using two modules of RAM and I would like to know their frequency because at simple sight, I can't see any sign of it in the modules. When I ran memtest one time, it showed me the test settings' ...
2
votes
0answers
38 views

“-/+ buffers/cache memory” is zero

i have an OpenVZ VPS with ubuntu server 14.04.2 and i can access to a SolusVM control panel. Recently, "memory usage" is always 0 KB, and only "vswap usage" shows real swap usage. if i run free -k i ...