0
votes
1answer
23 views

mdadm large memory consumption

Hi i'm build mdadm RAID 6 (8 WD Red 3 Tb) on ubuntu 13.10x64 server with ext4 fs When i download torrent on the array, server RAM is filled for maximum cap (8 Gb) memory is free when i manualy enter ...
0
votes
3answers
64 views

How to upgrade an old Linux box with this hardware configuration?

I have an old Linux box that needs to be upgraded without touching the processor or motherboard. It contains software that was licensed specifically to this physical unit and I have no option other ...
1
vote
1answer
318 views

How do I test if my motherboard is failing using Linux?

I've been having strange segfaults happen randomly to firefox, qsynth, and totem. Mainly firefox. I've tested my hard drives with smartctl and dd, and tested my ram with memtest, but how do I test my ...
2
votes
4answers
75 views

Acer Aspire netbook with Ubuntu is frozen. What can I do to save temporary data?

I'm in very serious situation. I use Ubuntu 10.10 on my Acer Aspire One netbook. Today it suddenly froze when I was working on something important. It happened after RAM memory and swap became totally ...
0
votes
1answer
25 views

How to get data shown out of workspace or directly from application?

I'm a new user, because until this moment I used to handle with everything by myself. My problem is complex so I think I chose the right section. Because of some reason I had to use another web ...
0
votes
0answers
115 views

Acer Aspire 4741g Memory Upgrade Error

I recently replaced my 2GB memory with Transcend JM1333KSN-4G, 4 GB memory. My machine boot into Ubuntu 12.04, 32 bit desktop and show 4 GB memory but when I put a hard job like coping 10 GB from Hard ...
2
votes
1answer
327 views

Clear cache of virtual machine

I already posted this on StackOverflow, but it was flagged as Off-Topic. Maybe you guys are able to help me. I'm currently doing some database benchmarking on a virtual machine running Ubuntu 12.04. ...
0
votes
2answers
108 views

What is the equivalent of Preload from Ubuntu to Windows? [closed]

Is there a software like Preload from Ubuntu, but for Windows 7? I can't seem to find one.
0
votes
2answers
465 views

How to stop chromium crashing?

I am using chromium browser in Lubuntu, in a old laptop with the early centrinos and 512 MB RAM. Chromium crashes very often (the "He's Dead, Jim!" page). I understand that this may have to do with ...
1
vote
0answers
515 views

Ubuntu 12.04 freezes on laptop when running memory/cpu intensive process

I have a Dell Precision M4500 laptop with 4GB RAM memory and Ubuntu 12.04 64-bit installed with 8GB of swap memory. After launching usual Java development environment (Eclipse, MySQL Server, SQuirreL, ...
2
votes
0answers
172 views

Apache memory usage never goes above 5%

I'm deploying an application that uses ImageMagick into VPS server. I tested in on two different OS: Centos6 and Ubuntu Server 12.04. On Centos6, the application is working properly and when ...
1
vote
1answer
318 views

Samba slows down when RAM is full with disk cache

I recently noticed that transfer speeds with samba(exclusively, even with loopback - iperf works just fine) have dropped to around 5MB/s on my gigabit network. Before it could easily reach 70MB/s and ...
2
votes
3answers
190 views

How to know how much RAM can still be installed [duplicate]

Is there any software that can determine how much more RAM can still be installed on a computer?
1
vote
2answers
480 views

How can I find out if I have enough ram to dual boot?

How can I find out if I have enough ram to dual boot or boot from a usb? I have a windows xp sp3 laptop with 2gb of total ram and I'm interested in trying out linux (maybe ubuntu or mint), for fun. ...
3
votes
2answers
934 views

gcc running out of memory in Ubuntu 12.10

I'm trying to compile my C project in Ubuntu (32bit) running in VirtualBox. Compiling the code in question requires quite a bit of memory, at least 3 gig. So I gave the VM 2 gig. Along with 2 gig of ...
1
vote
2answers
1k views

How can I increase the memory allocated to a process in Ubuntu server

I am trying to set up a highly concurrent messaging server and it appears to use a lot of memory. Currently our server OS is Ubuntu and server software is written in Java. Under load we get out of ...
0
votes
1answer
190 views

Using ZFS with little RAM?

I have an Acer EasyStore with a RAID5 mdraid array I use for storing my home files (photos, movies, etc), and I want to migrate it to ZFS with Ubuntu (the native kernel module from zfsonlinux.org). I ...
6
votes
3answers
3k views

MemTest is returning large numbers of errors in Test 7, no matter what ram I use

I have been having issues with this computer, and since MemTest said that there were errors on my RAM, I figured replacing it would fix them... However, after replacing the old stick of RAM, I am ...
3
votes
0answers
49 views

Seemingly inconsistent output from `top` re: Swap header vs. SWAP column

How should I interpret this seemingly inconsistent output from top re: swap? Running free confirms that no swap space is in use: $ free -m total used free shared ...
3
votes
1answer
858 views

Upgrading RAM on Ubuntu 12.04 caused major hardware failure

This is first time I am trying to upgrade the RAM on my Toshiba Satellite L650 Laptop running Ubuntu 12.04 64 Bit version. After a little research about upgrading RAM I ordered a Kingston DDR3 module ...
2
votes
3answers
1k views

RAM memory upgrade to 4Gb for emachines e355. is this possible?

I want to upgrade RAM in my fave nettop to 4Gb, but some sites says that I can upgrade only to 2Gb. But when I use dmidecode -t memory ubuntu terminal says that it is possible (Maximum Memory Module ...
0
votes
1answer
78 views

How can I tell if I will benefit from an upgrade?

I have a Dell Latitude E6320 with 2GB of DDR3 RAM running Windows 7 (32-bit). I plan on buying 4 more GB of RAM (for a total of 6GB) and then replacing Windows 7 32-bit for Ubuntu 64-bit (if ...
0
votes
1answer
291 views

Ubuntu Server - RAM Upgrade

I'm running an apache server and minecraft server out of one dell desktop computer with Ubuntu server installed and a quick look at free -m tells me that I'm using 1172 MB RAM and have 828 free (with ...
1
vote
2answers
1k views

Minimum system requirements for a thin-client PC?

How much RAM, CPU, Disk does a thin-client need in order for it to work on a terminal server like Ubuntu or Windows XP? (Network Boot).
0
votes
2answers
274 views

I cannot connect to home server after a few hours

I have an old PC and I decided to revive it. A LAMP (for my own use) and a P2P server (torrent and e2dk). My old PC is an AMD Athlon XP (1400 MHz) with 384 Mb of RAM First of all I installed Ubuntu ...
2
votes
1answer
410 views

How is the “Memory usage” value computed that is shown when I login to Ubuntu 11.10?

When I login to my Ubuntu 11.10 box, several values are displayed by default. For example: Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-17-virtual x86_64) * Documentation: https://help.ubuntu.com/ ...
1
vote
2answers
68 views

Trying to edit installed files in RAM during a live CD Ubuntu session

I'm without a hard drive for the moment, and would like to install some mods on minecraft inside of my Ubuntu live usb. Unfortunately I can't find the files once minecraft has installed (and works). ...
3
votes
2answers
1k views

How does copying files work with regards to RAM, and can I speed this up?

I have always wondered why my computer would copy files to an external drive at first at high speed, and then 'hang' for a while before continuing. When I upgrade RAM from 1GB to 2GB I noticed this ...
2
votes
1answer
717 views

Ubuntu detect memory leak

I run watch free and then observe a continuous memory used increment, about 100 every 2s. How can I know which process contribute to the used memory increment? top and pmap does not help. BTW, after ...
8
votes
2answers
510 views

Why is my swap used even if my physical RAM isn't full?

Sometimes I have observed in Ubuntu's System Manager that without the physical RAM being used completely, the swap memory starts getting used. Why is it so?
1
vote
3answers
594 views

Memory and SWAP in Ubuntu

When I go to the system monitor in Ubuntu, about 75% of the Memory is used and 45% of Swap is used. Why is the Swap used even when Memory is available? Doesn't Linux move data from Swap to Memory?
2
votes
2answers
362 views

RAM Limited to 256MB while 4GB installed

I have a Dell PowerEdge 800 running, with 4 1GB RAM modules installed, totaling 4GB. But while doing POST, it displays a message saying "Amount of Memory Limited to 256MB" and checking System Monitor ...
8
votes
3answers
5k views

Why does my 32bit ubuntu see 8GB of RAM?

I have just installed a fresh copy of ubuntu 11.04 32 bit and I was surprised to see that the OS can see my 8GB of RAM not like Windows 32 bit OS. How does it work? How is the address mapping ...
0
votes
1answer
228 views

screen flicker problem (OS independent)

I am facing an annoying screen flicker problem... I did so many tests, still cant find the actual cause of this. All the components are in warranty.. Please help me to find the problematic component!! ...
4
votes
2answers
3k views

Linux memory full, process memory usage doesn't add up in top

I have a computer with 16GB of ram. At the moment, top shows all the RAM is taken, (NOT by cache), but the RAM used by the various processes is very far from 16GB. I have seen this problem several ...
0
votes
1answer
291 views

How to downgrade server kernel to desktop kernel?

Currently I am looking at this way to solve my problem that uses more than 3GB RAM on 32-bit Ubuntu. For various reasons, I am trying to downgrade server kernel to desktop kernel. Can anyone give me ...
12
votes
4answers
2k views

How do I quickly stop a process that is causing thrashing (due to excess memory allocation)?

We've all experienced it--some program is asked to do something that requires a huge amount of memory. It dutifully tries to allocate all this memory, and the system immediately begins thrashing, ...
3
votes
3answers
1k views

Detecting source of memory usage on a Linux box

I have a toy Linux box with 256mb RAM running Ubuntu 10.04.1 LTS. Here is the output of free -m: total used free shared buffers cached Mem: 245 ...
5
votes
5answers
402 views

Why 32bits OSs can't address more than 3.2/3.2 gb of memory?

Don't know if this is the right place to ask this question. I've been reading that 32bit OSs (like the Ubuntu i'm running right now) can't adress more than 3.2gb or 3.3gb of RAM memory. I remember ...
0
votes
1answer
683 views

System thinks it is swapping, but isn't

I have a linux server (Ubuntu 10.04) which has no swap space (swapon -l reports nothing, 0kb swap memory listed in /proc/meminfo). The beginning of the output of top (sorted by %mem) is reproduced ...
4
votes
1answer
2k views

Tools to view/edit user space memory of running processes?

Are there any tools to view/edit user space memory of running processes on Linux? It would be a great learning tool.
8
votes
3answers
7k views

What's using my swap (Ubuntu)?

I have an Ubuntu 8.04 server which is running a database and a bunch of Java application servers. Its memory configuration and usage is: total used free shared buffers ...
0
votes
5answers
1k views

Should I add more RAM for Ubuntu?

My classmates suggested that I increase the memory of my Ubuntu 10.04 from 2GB to 8GB. I have a Nvidia FX 570 (256MB). Here are my question. What does having a higher memory does in general? Can I ...
0
votes
2answers
503 views

New memory installed - anything else I should do in Ubuntu?

I just upgraded my eee 1000 running Ubuntu 10.04 to 2Gb RAM. It is being detected fine by BIOS and OS alike, but I wonder if I need to do anything else to take the most advantage of the extra memory. ...
1
vote
1answer
2k views

How to increase memory allocation to Ubuntu Linux OS? [duplicate]

Possible Duplicate: How to increase disk space in Wubi (Ubuntu via windows)? I have installed Ubuntu linux operating system inside Windows Vista OS. Initially i allocated 11 GB to it but ...
0
votes
2answers
464 views

Missing PAE on Ubuntu 10.04 - inaccessible RAM

I upgrade my system (using the built-in upgrade mechanism) from 9.10 to 10.04. My kernel is reported now as 2.6.32-24-generic (that means 32 bit, right?) The systems seems to only be able to access ...
2
votes
3answers
2k views

Ubuntu memory usage

I'm running Ubuntu 10.04 and I do some dev with it. As I open FF, Chrome, Eclipse (Zend Studio 7.2), etc. and do some work, then leave, screen saver goes on, and when I come back a few hours later ...
0
votes
2answers
1k views

What is the reasonable minimum ram for Ubuntu in VMWare

I'm running Win 7 on 3G ram on my host machine I need to open an Ubuntu 10.04 VM in VMWare 7 and it needs to stay open for whole day for accessing some sites and connections. I won't serve ...
0
votes
1answer
171 views

How to find our what (not how much) memory is installed on a Ubuntu server

I have remote access (including root access) to a Ubuntu 9 server, but can't inspect it physically or reboot it. I want to find out the memory speed (and ideally maker and model) of the RAM installed ...
0
votes
1answer
502 views

Why is memtest repeating single test?

I've been having some problems with my computer. I'll start with a short history. Bought it 11 months ago, immediately there were problems. What would happen is, when I logged in after a long period ...