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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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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23 views

What type of RAM to upgrade with? [on hold]

I have an old HP Compaq PC with 256 MB RAM and I am not sure what type of RAM to buy to give it more memory. There is a sticker on the RAM saying: Samsung KR H 0434 PC3200U-30331-Z ...
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1answer
50 views

How much RAM will 14.04 need? [duplicate]

How much RAM would Ubuntu 14.04 need? (Usage: A bit of pictureprocessing, maybe an IP-Camera Stream, ordinary officework, simplecv, some Torrentdownloading). Is 4GB or 8GB better suited for me?
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22 views

How do you allocate memory to a virtual machine? [on hold]

I'm using 13.10 and found I need to allocate some more memory to the virtual machine. I don't know the command for checking the current allocation or even allocating more. What are the commands to ...
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1answer
16 views

Max RAM supported for AMD Phenom(tm) II X2 550 Processor × 2 [closed]

im using Ubuntu 12.10 on AMD Phenom(tm) II X2 550 Processor × 2 processor. any one please let me know. what is the Max RAM i can upgrade to. please let me know in details. im new to ubuntu
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33 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
34 views

How to check the speed of ram when dmidecode command is not working

Output of the dmidecode command is like this. viki@viki-pc:~$ sudo dmidecode --type 17 # dmidecode 2.12 SMBIOS 2.7 present. Handle 0x0006, DMI type 17, 21 bytes Memory Device Array Handle: ...
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1answer
14 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, ...
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1answer
45 views

Which 14.04 version should I install? [duplicate]

My specific question is that I have 3.9GB of ram, but I don't have an AMD processor. I have the Intel i5. Do I install i386, or the AMD x64 version of 14.04? Let me know if there are other specifics I ...
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2answers
36 views

Installed more ram /boot/efi not found… How to fix?

So, I just installed more RAM. Now I can't boot (properly) into xubuntu. When booting I'm greeted with something along the lines of "Failed to load /boot/efi, press S to continue or press M to ...
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1answer
17 views

free displays incorrect memory on Nexus 10

I'm playing about with Ubuntu Touch on a Nexus 10 (which should have 2GB RAM). phablet@ubuntu-phablet:~$ free -h total used free shared buffers cached Mem: ...
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1answer
25 views

Lots of Memory and CPU being used on nothing

I noticed over the last week or so my computer is using a lot of CPU and Memory when nothing is obviously running (even after rebooting). With only my browser open it's using 20% CPU, 4.0 GB Memory ...
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1answer
29 views

bad ram in DIMM1 need to limp by till monday, can I temporarily disable a memory slot?

Got to work, started windows, immediately blue screened as soon as I logged in. After a few tries I ran diagnostics and found the ram in dimm1 was bad. I can boot into Ubuntu and it runs pretty well ...
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2answers
42 views

Am I using more than 4 GB on my 32-bit system?

I have a relatively clean installation of Ubuntu which reads this under system details: I've read everywhere that 32-bit OSs don't support more than 4 GB of RAM (some sources say 3 GB), so what's ...
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32 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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34 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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19 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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52 views

Google-Chrome would rather die than use swap

I'm running Ubuntu 14.04, and I seem to be having trouble with the swap file. I'm using System Load Indicator 0.3 to watch memory usage, and while system memory fills up, the swap file gets very, very ...
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39 views

Ubuntu freeze when RAM exceed 70%

I'm using Ubuntu 12.04 on thinkpad T43 with 1GB RAM. After exceed about 70% RAM system freeze, but I'm sometimes able to rum command line (what takes ~15 min) and kill Firefox and system back to ...
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1answer
57 views

Ubuntu 14.04 - 32 bit vs 64 bit

If I install Ubuntu 14.04 32 bit version on a machine with RAM exceeding 4 GB, will it not use more than 4 gb of ram ?
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2answers
75 views

can't suspend to RAM any more after upgrade to 14.04

I upgraded to 14.04 and now my laptop can't "sleep" anymore i.e. suspend to RAM doesn't work. How can I figure out what's wrong and fix this? edit 1 My hardware is a ASUS Zenbook UX32A edit 2 ...
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1answer
34 views

responsiveness drops drastically when RAM get's full after upgrading from 13.04

Since I've upgraded from ubuntu 13.04 to 14.04 (and before 13.10) my system get's to it's knees when the memory get's full and has to start swaping.. Of course I know that a performance penalty ...
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3answers
478 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 ...
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43 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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79 views

14.04 64 bit memory use

When I start the OS I have half of the memory used (1Gb) and now with chromium open this is the output of free: piero@piero-Vostro-400:~$ free total used free shared ...
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51 views

Can I save a file from RAM?

To be more specific, here's the situation. I was working on MyPaint from a blank document and, after a few hours during which I didn't save anything (of course…) the program freezed. I didn't close ...
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34 views

Are all pages of a process loaded in swap file / partition?

"Swap space is the area on a hard disk which is part of the Virtual Memory of your machine, which is a combination of accessible physical memory (RAM) and the swap space" . According to a user now , ...
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2answers
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In Consistent RAM reports

"System Monitor" tells me i am using 1.3GB of 2.9GB at 42.8% "atop" tells me i am have 174.8M Free "top" tells me i have 3072772 total, 2894424 used, 178348 free 3072772KB = 2.93042373657227GB ...
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1answer
298 views

zram vs zswap vs zcache Ultimate guide: when to use which one

What the hell are they? how are they different (I've written my understanding in an answer below) In the Zswap system, when a page is evicted from the zswap to the actual swap is it stored in a ...
6
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1answer
81 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 ...
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1answer
81 views

What is wrong with the memory usage?

I can't figure out what is consuming my memory... Could anyone help me? user@desktop:~$ free total used free shared buffers cached Mem: 8176992 6186776 ...
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1answer
36 views

Why is the minimum video memory for a virtualbox machine so large?

I'm creating many virtualbox systems with clean installs and such and noticed that the default video memory size is quite large. I could understand at the beginning of the Ubuntu installation a VGA ...
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132 views

Laptop seems to crash after suspend to RAM

I installed Kubuntu 14.04 a few weeks ago and all has been well up until a recent software update. Now, upon closing the laptop lid or manually suspending my laptop, trying to wake it greets me with a ...
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3answers
136 views

Ubuntu Frozen every time when Memory usage over 80%

Ubuntu Frozen every time when Memory usage over 80%, It seems that the system hangs due to a load of disk IO - the screen is frozen and the only thing I can see is the indicator LED of disk keeping ...
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1answer
114 views

Know programs in cache

I have this situation with RAM and SWAP at the moment: $ free -h total used free shared buffers cached Mem: 7,7G 7,5G 159M 100M ...
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1answer
45 views

Lagging when swapping

I use Ubuntu 14.04 on my Lenovo E531 with 4GB installed. The problem is that when the RAM is about 70% full the system starts swapping. After swap is used (even if only 10MB is in swap) the system ...
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1answer
146 views

245 MB RAM are detected instead of 8 GB Ubuntu 64 bits

I run free -m and I got 245 MB of available RAM while I have 8 GB ! My BIOS detects 8 GB ! What can I do to 'recover back the RAM space ? free -m outputs this: total used ...
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1answer
48 views

Can Ubuntu cope with bad RAM?

I have installed Ubuntu on a computer which hat bad/defective RAM (memtest86+) showed that later. The thing is I did not have any problems with Ubuntu 14.04 while Windows 7 installed on the same ...
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1answer
140 views

Ubuntu does not recognize 8GB of RAM [closed]

I have just installed Ubuntu 14.04 64-bit on my laptop and on the system monitor it only shows 7.2 GB of RAM and not 8 GB. Why is that?
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1answer
38 views

Ubuntu 12.04 LTS doesn't recognize full memory?

I have Pentium 4 Desktop, Intel D915PGN mother board with a full 4 GB of ram, but my Ubuntu 12.04 64 bit only recognize 3 GB of ram, do you guys have any suggestion? Thank you
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1answer
55 views

Can I increase the size of the processor L1 and L2 caches? [closed]

Im running an Ubuntu server 12.04 and checked my CPU status with lscpu and got result: L1d cache: 32k L1i cache: 32k L2 cache: 6144k How can increase my Cache size?
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14 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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78 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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2answers
479 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 ...
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2answers
46 views

Is Ubuntu running all users at the same time?

Every time when I have some memory intensive things running on one user and switch to another one, I can see that the memory usage continues. Is the other user actually still running? If so, is it ...
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40 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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121 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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1answer
34 views

Ubuntu 13.10 ram? [closed]

Does Ubuntu 13.10 work well with an acer aspire one d255-2dqkk intel atom-n450 with 1GB of RAM? I tried it via the installation in an usb and by booting my pc with it and it seems working well... But ...
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1answer
563 views

Increasing swap memory in ubuntu 14.04

I want to know if it is possible to increase swap memory in Ubuntu 14.04. How is it possible? Another question: I installed Ubuntu 14.04 on my laptop (ASUS)...When I'm working with it and open URL ...
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53 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 ) ...