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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what is the nm-applet and why does it take so much memory?

I was wondering why my memory useage was so high, what is this thing that take a whopping 1.2GB of memory. Please and thank you.
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2answers
1k views

Can I use all my RAM for application data?

I have yet another question about "where is my Linux memory" Question goes: can I use cache for application data? On my laptop I have 1GB ram. Situation after some time of work: browser takes 400MB ...
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2answers
541 views

Physically check ram without rebooting the server?

I have a production Ubuntu server in a remote location, which recently started to behave strangely. I suspect RAM errors, and want to have a physical RAM check without rebooting, Live CDs or ...
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1answer
4k views

how to get graphics card memory info? windows and linux shows different value

In my Windows 8, video card shows 640 MB of available memory (Screen Resolution > Advanced Settings or with dxdiag). But ubuntu (with lspci command) shows 256 MB. so who's right?
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Ubuntu 12.10 and VMware Workstation 9: RAM caching causes severe performance drops

I have read plenty of threads on memory caching and the standard response of "large cache is good, it shouldn't effect performance", "the kernel knows best". I have recently upgraded from 12.04 to ...
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1answer
228 views

Where is my ram?

I have 2GB installed on my machine running Ubuntu 12.04. After some time of use, I see much of my RAM used. The RAM does not free enough even though I closed all my programs. I included 2 ...
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1answer
617 views

Will Kubuntu run on 256 MB Ram?

For two weeks, I have been trying to install Kubuntu 12.04.1 onto a Kingston USB stick to run on my Acer Aspire 1362 Laptop, which has 256MB RAM. Firstly I downloaded: ...
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2answers
166 views

How do I tune WordPress to make my site more responsive?

I have a Linode that has Ubuntu loaded and am hosting a WordPress site. I would like to optimize my site so that I no longer get Out of Memory errors like the following: Killed process 16660 ...
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1answer
144 views

Shutter is using big memory

I included Shutter on my Startup Applications list upon installing the app. For the second time in two days, my laptop would suddenly freeze heavily for a few seconds that I can't even move the mouse ...
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1answer
61 views

I had 2G of RAM and I upgraded to 6G and it only sees 3G

I did some searching, and I have a processor that supports pae. It is red when I run cat /proc/cpuinfo | grep pae I do have the 64 bit server version installed, however, I'm using a desktop. (That is ...
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65 views

How I can auto end specific process?

How can I auto end a specific process when it reaches 400 MB RAM? And how do I change it back after I do that ? Is there any program or script or anything ?!
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1answer
1k views

Compiz Memory leak [closed]

After sluggish performance and freezing for two weeks I finally managed to nail down the culprit to Compiz, I found out it's vital to Unity and is basically an OpenGL wrapper for Ubuntu and Xorg. How ...
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2answers
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Which is correct for VirtualBox memory usage: Windows Task Manager or System Monitor?

I have configured my Ubuntu VirtualBox install to have a base memory setting of 512MB. When running this install, its fairly sluggish in a way that feels like its thrashing memory. In other words, ...
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2answers
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lshw not showing individual memory bank info

This is all I get: sudo lshw -C memory *-memory description: System memory physical id: 0 size: 7981MiB sudo lshw doesn't give any more info. lshw used to ...
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1answer
48 views

Disable memory cache - real reason

OK, before you mark my thread a duplicate I want to say, that I know this very good answer: How do I clean or disable the memory cache? But this is not case for me. I am making some performance tests ...
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1answer
162 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 ...
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2answers
189 views

Not recognising 4GB of RAM

I have a pae kernel but free -m only shows 3.2 Gigs of the 4 GB that is physically installed. The BIOS shows 4 GB available. uname -a gives: 3.2.0-35-generic-pae #55-Ubuntu SMP Wed Dec 5 18:04:39 UTC ...
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479 views

How much swap do I really need? [duplicate]

Possible Duplicate: I have 16GB RAM. Do I need 32GB swap? I have a 4 GB RAM and 300 GB HDD with 8 GB of it as a Swap partition. I'm running 12.04 with hibernate enabled. How much swap do I ...
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2answers
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Lenovo T60P with 4GB of RAM, Ubuntu 11.04 and 11.10 only see 3GB

I have a Lenovo ThinkPad T60P with 4GB of memory (BIOS sees all 4GB RAM). I have installed Ubuntu 11.04 and 11.10 and both are only recognizing 3GB RAM. Please advise. Thanks. Updates Used 32bit ...
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2answers
303 views

What is memcached? Is it good for gaming or virtual machines?

This is a performance question: My machine always runs Ubuntu as the main, and as I login, it always starts up a Windows VM and firefox? If I install memcached, will it improve my performance? I ...
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1answer
5k views

How much memory does Ubuntu need? [duplicate]

Possible Duplicate: What are the minimum system requirements for 12.04 LTS? How much memory do I need for Ubuntu? I mean everything that is taking memory space after I finished installing ...
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3answers
244 views

Why isn't my SWAP cleared after usage?

When I use a lot of RAM (90-100%) then the laptop normally starts using SWAP so if I look in htop during that intense usage I see it's using 200MB of SWAP. But when I stop using the laptop (the ...
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1answer
63 views

Where is everything saved when I “try Ubuntu without installing?”

The reason I ask is because I ran out of space each time Steam tried to unpack, and none of my drives or devices are full.
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4answers
536 views

Why is only 3.2GBs out of 5 showing up?

I have 64Bit Ubuntu installed, and a MSI Graphics card. Any ideas on why this might be happening?
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3answers
6k 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 ...
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1answer
307 views

typed `apt-get update` now showing a long list of EDAC errors. Is there anything wrong?

I typed apt-get update and then I saw a long list of EDAC i7Core: Lost 127 memory errors Please help me understand what has happened. I am using ubuntu server edition 12.04 LTS UPDATE: I ...
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1answer
333 views

Free up memory dump of all the terminated processes

I think my subject is pretty spot on. I am on Ubuntu 10.04 and have the following specs in my computer: i5 Processor with 3.30GHz 16GB Memory 1TB Hard drive 1 Gigabyte on board network I am ...
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3answers
569 views

How to speed up installation?

I have an Acer 4736z with 2gb Ram and ubuntu 12.04 is running too slow for my standards. I would like to know if I am running useless processes that I am not aware of and remove packages I will never ...
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1answer
305 views

Why isn't Ubuntu detecting all of my RAM?

I just upgraded my netbook from 1 gb of RAM to 2, but when I type free -g, it only says that I have 1 gb. How do I get it to detect all of my RAM?
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2answers
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How is possible that Ubuntu 12.04 32bit can see all of 6gb ram

I have Ubuntu 12.04 32bit and system is displaying all of my ram 5.7 GiB, how is this possible?
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2answers
733 views

Different memory types in System Monitor

On the ubuntu system monitor there are different types of memory listed: Virtual Memory, Resident Memory, Writeable Memory, Shared Memory & X Server Memory. What are the differences between them, ...
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1answer
833 views

Unsure if my RAM speed is set correctly

edit: Thank you for reopening I have an an AMD APU as my CPU/GPU (specs below) and its graphical performance benefits greatly from higher speed RAM. In my motherboard BIOS I have set the memory clock ...
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1answer
540 views

Is my computer slow due to lack of swap

A few months ago, I installed Ubuntu 12.04 alongside with Windows 7 on my Asus EEE-PC 1015bx. It has a tendency of freezing and when trying to investigate I found that a swap partition of only 256 MB ...
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1answer
3k views

Can I create virtual memory?

On Windows you can use virtual memory to use disk space as RAM. Can you do this on Ubuntu?
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1answer
145 views

Memory cache still load, after close programs

It's show on system indicator, I found solution in ubuntuforum to use command sudo echo 3 | sudo tee /proc/sys/vm/drop_caches It's work, but why my ubuntu not handle by itself?
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4answers
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Would I benefit from reducing, or increasing swappiness?

I've read a few articles now about changing the swappiness level on Ubuntu to possibly increase performance. But I'm very unfamiliar with how swappiness works, would I benefit from increasing, or ...
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2answers
152 views

Ubuntu 13.10 64Bit version only shows 2.9GB of Ram

I have an old PC at home with 1.5 GB of RAM and as expected its quite slow. So I decided to install Ubuntu on a different PC. Intel Quad Core and 4 GB of memory, and a graphic card with dedicated ...
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1answer
77 views

Why is almost all of the 3 GB RAM on my HP G62 laptop always used? [duplicate]

I am using Ubuntu 13.10 on a computer with 3072 MB RAM and 20 GB swap. It is an HP G62 laptop which overheats pretty regularly. When I type free -mt in the terminal the output is: free -mt ...
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1answer
1k 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 ...
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1answer
90 views

Why is it only recognizing 5 of 6GB of RAM?

Hardware HP Envy M6 Sleekbook (m6-k010dx) 6GB RAM I know it has 6GB of RAM, that's what it came with when I had Windows 8 on it, but the 13.10 install I've got (downloaded the latest two days ago) ...
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1answer
710 views

What Does Cached Memory Mean when Viewing htop?

While viewing the reports of htop, I would like to know what the orange/brown 'cached memory' bars actually indicate. Really I'm looking for a more practical explanation of what I'm looking at, rather ...
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1answer
304 views

Ubuntu 12.10 external RAM on old laptop?

Got this old Fujitsu-Siemens Amilo Pro V2010 on which I run now Ubuntu 12.10. Tried to open the back for adding extra RAM. Unfortunately, the back doesn't go off. So I now was curious if I could just ...
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1answer
190 views

Why does saidar and system monitor show different memory usage

So i noticed that saidar and system monitor show different ram usage, at least i think it is ram usage. Is not Mem Used ram in saidar?? Is sider a software that can be trusted ?? what is it showing ...
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1answer
1k views

Why does whoopsie increasingly take more CPU?

I am running Ubuntu 12.04 LTS and I've been following whoopsie with the top program and noticed something strange. In the afternoon the daemon process was only using up to 2% of CPU power. But ...
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1answer
139 views

Need more RAM?? Running VMmachine + ubuntu

So I looked but im running ubuntu in vm machine and its running at a snails pace and I installed the 64bit ver. Running windows 7 64bit the down side is that I only have 2GB of ram ...
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2answers
4k views

Ubuntu swappiness

I have a laptop with 4 GB RAM and i3 processor. It runs very fast when I use windows, but it keeps slowing down on my Ubuntu when I use it continuously. I noticed that 500mb+ swap is getting used even ...
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4answers
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How can I run a complete application from RAM? [duplicate]

Possible Duplicate: Can I use all my RAM for application data? When I do some stuff in background (unpacking, compiling, backup, etc.) my hdd is under load and for example, Firefox and ...
2
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1answer
898 views

kernel mem parameter

As a last resort to my question, I am yet to try the mem parameter of kernel to force it to use the specified amount of RAM. Short Summary - I can only see 3.2GB RAM on a 64bit OS and am not sure ifs ...
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2answers
714 views

Does seeding torrents affect the harddisk RAM caching?

I've downloaded a lot of torrent files and while I'm seeding them, I've noticed that very often when I start the browser it's slow and the hard disk activity indicator is on. Usually when I start a ...
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1answer
700 views

Which of these services can I safely disable?

Before install stuff on my server I wanted to trim down unnecessary services. etc. Here's the top: 615 ubuntu 20 0 26948 7384 1648 S 0.0 1.2 0:00.39 bash ...