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0answers
42 views

RAM not used by process? Then who uses it? [on hold]

I don't understand who uses my RAM. I can see clearly that it's used, but I have no ideea who uses it. Do you have any ideea what could be wrong here? I'm experiencing random spikes of high memory ...
0
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0answers
7 views

How to make Live CD store data in hard drive?

How can I configure a Live CD operating system (Specifically Lubuntu) to use the hard drive as its main storage, not storage simulated in the RAM?
1
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0answers
33 views

htop showing less memory usage

I'm currently trying to benchmark performance improvements when using a RAM disk. So I've been giving my VM 24 of the total 32 GB RAM, and created a 16GB RAM Disk inside. It's beeing used, ...
0
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2answers
19 views

Swap used even though most memory is “cached”? [duplicate]

I'm trying to make sense of this free -m output: total used free shared buffers cached Mem: 7971 7608 363 1 17 4703 ...
2
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0answers
66 views

Debian x86_64 and 4 GB RAM

I bought additional 2GB of RAM and inserted it into my laptop. The BIOS sees 4GB of RAM but Linux sees only 3GB. Output of free -m: total used free shared buffers ...
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0answers
123 views

High Memory Usage in my fresh install of Manjaro KDE

I am a normal desktop user. Previously using Linux Lite 2.6. Read about Manjaro and I really like the KDE. So Yesterday I tried to install it and I was struggling with issues. After installation it ...
0
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1answer
33 views

Attaching a phram mtd0 device to gadget serial mass storage

I'm using a Atmel SAMA5D3, I have created two phram devices /dev/mtd0 and /dev/mtd1 I am trying to attach them to a gadget mass storage module. insmod g_acm_ms.ko file=/dev/mtd0,/dev/mtd1 The ...
2
votes
1answer
65 views

Does my system use all available RAM?

I installed 16GB of RAM on a motherboard that shouldn't take it. Should I buy a better motherboard or change anything at all? It seems to be working fine. Memory: Crucial Ballistix Sport "(8GBx2) ...
0
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1answer
61 views

Finding memory corruption bugs in Linux and FreeBSD

In windows, we can enable page heap verification using gflags to catch memory corruption bugs more easily. Is there a similar service/program for Linux and FreeBSD operating systems?
2
votes
1answer
136 views

How do I measure the RAM usage of desktop environments?

I would like to measure the RAM usage of several desktop environments (including Cinnamon, GNOME, KDE, LXDE, LXQt, MATE and Xfce) running on my Sabayon machine. I would prefer a command-line way of ...
0
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0answers
7 views

What is the criteria to set highmem parameter?

I've read about highmem parameter of Linux kernel. AFAIK, that parameter only makes sense on 32-bit machines. What is not clear enough for me is the criteria to set it. Please could you provide an ...
1
vote
1answer
150 views

How low can I go on RAM?

I have some old PCs runnning on my business. And by old I mean PENTIUM-3 800 MHZ and AMD DURON 950 MHZ, with 256MB RAM. They are running my business software today on Windows XP. I want to run Linux ...
0
votes
1answer
26 views

Use NVIDIA graphic card as regular resource

I don't use my graphic card anymore, but it is still laying there, idle. Is there a way I can turn it back on and use it just a regular, additional CPU/RAM for my laptop?
2
votes
1answer
83 views

All of system ram not available on Debian OS partition

I have a computer with a Windows 7 and a Debian OS disk partition. The computer has 12GB ram as can be seen when logged in on the Windows 7 OS. However, the Debian partition is only recognizing just ...
0
votes
1answer
45 views

How to install applications temporary into RAM on LiveCD?

So I have a Scientific Linux LiveDVD. And I have it installed on a PC that has no hard drives configured and avaliable at all. I want to install some applications that would allow me to configure ...
1
vote
2answers
159 views

Is there way to force Linux to unswap when there is low CPU usage?

After working more than 1 day on my machine swap becomes about 1GB. Some of my panel plugins go to swap so they become laggy. Moreover system doesn't unswap until I make it to do it swapoff ...
0
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2answers
37 views

Ubuntu stops responding to any action

I use ubuntu and found it really frustrating that it stops working really frequently. The circumstances are: Opened Android Studio WITHOUT any emulators (I mean device emulator, I use real devices ...
5
votes
3answers
533 views

detect number of RAM channels

I'm trying to determine (without physically having access to a machine) the number of RAM channels it supports (single, dual, etc) - AND whether it is configured to use that setup, e.g with four slots ...
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votes
1answer
45 views

Monitor Cpu & Ram Uasge Via Web

Sorry about that newbie question. But does anyone know how to make or where to find a script that will monitor CPU and ram usage, so i will be able to use it at my admin panel on web? I'm running a ...
0
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1answer
56 views

Substantial portion of memory used is not accounted for by user processes

I recently installed a copy of Ubuntu Server 14.04.2 LTS on a cluster. All appears to be working fine, but a large portion (around half) of our total available RAM is being used. I.e., when I run ...
0
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1answer
64 views

Linux 64 bit only recognizing 3gb of RAM out of 6 [closed]

I'm running Linux Mint 17.1 (cinnamon) on a Dell XPS 630i core 2 quad. I recently upgraded to 6GB of RAM only to realize that Mint is only recognizing 3GB. I confirmed that the system is indeed 64 bit ...
0
votes
1answer
488 views

Why and how is swap improving performance, and can I disable it? [closed]

I have a laptop with 8GB of RAM running 4.0.4-2-ARCH. Recently, I installed Android Studio, and bam, my normally pristine system was suddenly stuttering and all out freezing (more than once). Before ...
3
votes
1answer
177 views

lshw shows a different amount of RAM than the 'free' command. Missing RAM? [closed]

Title says it all! uname -a: Linux servername 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u2 x86_64 GNU/Linux lshw output: *-firmware description: BIOS vendor: Dell Computer Corporation ...
1
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2answers
60 views

Memory space of an operating system

I want to install Uberstudent (based on Ubuntu 14.04) on a Samsung Chromebook 2. I'm new to looking at specs so I don't know if it will work. The Uberstudent documentation states: "2 GB of ...
1
vote
1answer
85 views

How are the values represented with the “free” command

I am interested in the totals of the 3 lines. Specifcally, if the "used" values can be counted as what's going on in real time, or if that's just a running total since the OS was started? How does ...
1
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0answers
110 views

The command “dmidecode -t 17 | grep Size” showing in CentOS release 6.5 (Final).

Recently I upgraded the system(Dell 720) RAM 8 to 16 GB(4*2[new ram]), but it is still showing old amount of RAM(ie 8GB). Please help me, If I need to install driver(module). Kindly Let me know all ...
6
votes
2answers
138 views

Besides cache, what does the Linux kernel use significant amounts of memory for?

My computer feels really sluggish. According to free, I have only ~200M RAM left and more than a gigabyte had to be swapped out. I know that it is good if memory is used for caching but this looks ...
4
votes
1answer
104 views

Why am I missing 2% of my ram

I am running grep MemTotal /proc/meminfo to determine the RAM installed on a system, however instead of reporting a number corresponding to an even number of GB, it is slightly off. I.e. on my 64 GB ...
0
votes
0answers
12 views

Boosting responsivness of krunner or yakuake

It sometimes takes up to 20 seconds for krunner (kde application launcher, i actually use it with XFCE) to show up when my pc is under heavy load. How can i upgrade its responsivness (to, for example ...
3
votes
5answers
5k views

Is there a linux OS that can be loaded entirely into RAM?

I have 32 GB of memory in my PC. This is more than enough for a linux OS. Is there an easy to use version of Linux (Ubuntu preferably) that can be booted via optical or USB disk and be run completely ...
0
votes
1answer
62 views

What desktop enviroment consumes fewer resources? [closed]

I want to install Mint in my laptop, but I'm undecided about which desktop environment I should use with it. Currently the available desktop environments the distribution offers are Cinnamon, MATE, ...
0
votes
0answers
32 views

Perform task on waking up from suspend

I have program that misbehaves when my pc wakes up from suspend to ram, it starts using up to 40% of processor time so i usually have to kill it manually. How can i set specific command (pkill in ...
1
vote
1answer
192 views

Calculating RAM/Swap Space Requirements [duplicate]

I have been developing a MySQL database that makes some use of BLObs. This has now been transferred on to a virtual machine (VM) in preparation for going fully into the 'cloud'. However some of the ...
1
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0answers
274 views

Booting Linux from RAM

I want to find a cross-distro solution for setting linux up to boot from RAM. What this involves in essence would be copying an existing installation of linux one way or another over to the RAM (to ...
0
votes
1answer
701 views

hpux: how much memory process eating?

I have found on web those two command line to see top 10 cpu and ram eating process ram echo " SZ PID RUSER COMMAND";UNIX95= ps -ef -o 'sz pid ruser args' |sort -nr|head -10 cpu echo " SZ PID ...
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votes
1answer
147 views

How much RAM and CPU for a NTP server? [closed]

As a side project, I am thinking about adding a NTP server to pool.ntp.org. I would like to use CentOS basic, but how much RAM and CPU should I assign to a machine that will only be running ntpd (plus ...
2
votes
0answers
77 views

How can I let high priority processes continue when low priority processes are causing free memory to be low

Ok I'm not sure if this is the correct place to post this. It is more of a 'why not' question than a 'how to' one (assumption is that it isn't/can't be done). Why don't we allow RAM to be partitioned ...
2
votes
1answer
50 views

Why is my computer sluggish after downloading a lot?

When I download a lot of data (e.g. 3GB) in one go, using a program such as Transmission or Wget, progressively during the downloading, and after it has has finished, the computer always seems ...
0
votes
1answer
145 views

What is the difference between MAC OS X “Virtual Memory” and Linux/Unix Swap? [duplicate]

I would like to understand the difference of MAC OS X "Virtual Memory" and Linux/Unix Swap. I ask this because I observed that MAC OS X "Virtual Memory" seems to work way more efficient (in desktop ...
1
vote
1answer
150 views

When the RAM is used up, what will happen?

When I ran ImageMagick's convert to convert and combine image files into a pdf file, it will create 10GB temporary dirs and files in /tmp. I am not sure if it did that all the time, or because my ...
1
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0answers
13 views

How to interpret numerous processes with exact same RAM usage [duplicate]

I have a VM that processes files, parses the information and saves it to a database. I've been monitoring the resource usage and noticed /usr/sbin/console-kit-daemon --no-daemon.. Below you see a ...
4
votes
3answers
5k views

Is there any way to know the size of L1, L2, L3 cache and RAM in ubuntu?

Is there any way to know the size of L1, L2, L3 caches and RAM in Ubuntu?
1
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2answers
3k views

Using only 3.3GB but I have 8GB RAM even on Ubuntu 14.04 64bit

I have 2x 4GB(8GB) RAM installed on my motherboard and BIOS/UEFI can confirm it, but on Ubuntu 14.04 64bit only has 3424776kB or 3.266120911GB. uname -a returns: 3.13.0-36-generic #63-Ubuntu SMP Wed ...
1
vote
1answer
218 views

CentOS 6.5 : machine with more that 1 TB RAM => “no free pages available” on boot

I have a upgraded a server with more than 1 TB of RAM, and it is unable to boot. With 768GB of RAM all is working fine. I got the following message : Trying to allocate 1005 pages for VMLINUZ. ...
1
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1answer
357 views

file access time after loading file into the cache

I read from here that I could load file into RAM for faster accessing using the below command. cat filename > /dev/null However, I wanted to test if the above statement is really true. So, I ...
5
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1answer
217 views

Where has my RAM gone & how to interpret atop's memory output?

For a while, I encounter RAM-shortages on my Debian webserver (VPS/virtual machine). This would not be unusual, if they happend on a regular basis. But they do not. Here's a chart from Munin: ...
2
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1answer
204 views

Memory Usage in Linux [duplicate]

How to setup limit for process to memory usage? Similar to open files limit in /etc/security/limits.conf: ubuntu soft nofile 4096 ubuntu hard nofile 8192 ...
0
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1answer
64 views

What dev folder allows you tell the OS to cache something?

Someone told me that there is a sub folder off of dev that basically allows you to tell the OS to keep the contents of that folder cached in RAM. So if I put some files & directories in ...
0
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1answer
211 views

Arch linux weird ram issues

I installed Arch linux (I have reinstalled it a couple of times, actually, in the past 3 months, just to get to know it better). My problem is, that I have 4GB RAM, and as soon as my free RAM hits ...
1
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2answers
214 views

Why does Linux only see 3832MB of my 4096MB of RAM?

I am setting up a lot of 64-bit RedHat VMs (VMware vSphere) for our development department in my company. Most of them start with 4096MB of RAM, but Linux only seems to recognize 3832MB. Can anyone ...