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 to pause a process until memory requirements drop

I'm compiling source code in the terminal but 75% of the time the build will freeze my system and I have to hard reboot or wait for a LONG time until oom kills it. I'm positive it's a memory issue ...
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23 views

Storing a File in the Memory

If I have a simply php file that will be accessed a lot, is there a way I can configure the file to be present within the RAM at all times, so rather than reloading the file from the hard drive every ...
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1answer
231 views

Ubuntu 14.04 64 bit slow how to fix?

I upgraded from Ubuntu 12.XX 32 bit to 14.04 64 bit, but the Ubuntu became slow, I have the below CPU specs with 4 GB RAM, what is the solution? salim@salim-desktop:~$ lscpu Architecture: ...
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1answer
617 views

How to automatically restart an application for using too much RAM or CPU

I'm going to be running an Ubuntu 14.04 LTS server that will have a few Garry's Mod (Half-life 2/Source based) servers running on it. I don't want any one of those servers getting out of line by ...
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2answers
323 views

How much RAM Does Ubuntu use? [duplicate]

I have a Yoga 2 11( model 20428) and Win8.1 takes about 2 of my 4gb of RAM to run. How much RAM will Ubuntu use to run. This is a secondary laptop, for movie watching, school work, websurfing and ...
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2answers
216 views

Why can't my laptop use more than 85% of my RAM?

I have 1GB RAM in my notebook (HP Compaq 6735s), but the video card is using 256MB, so I'm left with 768MB RAM. However, whenever my system starts using more than 85% of memory, it becomes unusable. ...
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67 views

What does it mean for /proc/kpagecount to be zero

for some entries in /proc/kpagecount, all the 64 bit entry is zeros and yet the page is allocated (confirmed from /proc/kpageflags). What does it mean for kpagecount to be zero for certain physical ...
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783 views

How can I reduce ram usage? And also how can I speed up Ubuntu 14.10?

I just upgraded to Ubuntu 14.10 from 14.04 to find the amount of ram usage has almost doubled well my CPU usage and almost been reduced. When doing little on my computer my ram usage stays at about ...
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1answer
83 views

50% of RAM occupied at the beginning

I am using Ubuntu 14.04.1 LTS on a DELL INSPIRON N5050. My problem is that I have 6 GB RAM and from the start of the OS almost 50% of my RAM is occupied. I have to mention that I do not have an ...
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1answer
310 views

Ubuntu 14.04 detects 4 out of 8GB of ram

I've been dual-booting my laptop for about six months now, on one side Ubuntu 14.04 and on the other Windows 7. When I bought this computer two and a half years ago, it had 8GB of ram. My Windows ...
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52 views

Memory issue. How to identify the root cause using free

I am running two application on my system. When I run two applications in parallel, Memory gets consumed within a few minutes.. [Data below is not actual.. Just for explanation] Initial state.. ...
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1answer
117 views

Do I need to upgrade only the RAM for making Ubuntu's virtual machine quick and smooth as OS X at the same time?

I own a Mac mini Mid 2011. My Mac mini's details: 8GB RAM DDR3 1333 Intel Core i5 2,3 GHz Intel HD Graphics 3000 512 MB I have Ubuntu 14.10 and OS X 10.10 partitions with modified rEFInd, but it's ...
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2answers
263 views

Understand free command with top command

I have a doubt. I start ubuntu and run free command. I will get the total free space available. Let say it as 100MB. Now I run a few applications. So after some time, I again run the free command. ...
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2answers
6k views

How to increase JAVA Heap Size?

I need to increase the default java heap size to get OpenNMS Linkd service running smoothly, and fortunately I have 4/5 of my total installed memory free at any given time even when their is maximum ...
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2answers
607 views

Can you use your PC with a dead RAM stick?

Just tested my ram with memtest86. Got about 24K errors but I don't have money to buy new RAM!!! I'm just 13 years old. Do you still use your PC if your RAM is dead? And how do I repair this RAM ...
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294 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 ...
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2answers
593 views

No 100% Memory Usage

I've 4 GiB RAM, and System Monitor shows 3.8 GiB. I think 200 MiB is for GPU. But I've never seen Memory usage more than 3.0 GiB. If memory usage is close to 3 GiB, it uses Swap, and when it reaches ...
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2answers
18 views

Restricting resources of user applications

Sometimes, either because of a memory leak or the computationally-intensive nature of a program, applications can start to slow down and ultimately freeze the whole system by claiming too much RAM or ...
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1answer
217 views

some ubuntu steam games use more RAM than windows version

Why some steam games (as XCOM Enemy Unknown) need more RAM memory on Linux than on Windows? Minimum requirements for Windows are: Windows Vista / 2GB RAM and for Linux are: Ubuntu 14.04 (64 bit) and ...
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2answers
318 views

Does Zombie process cause memory shortage? Does it killed by init process eventually?

I have zombie process problem and it's a first time I've met it. So I don't know how to solve this problem and concept. I read some article posed 1 year ago (link) and It said like below: There is ...
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1answer
36 views

Will RAM manage the peripherals or they will have separate memory?

In a LINUX system the Virtual Address Space is 4GB here as the Physical Memory depends on the RAM which we are using. For example I have a system of 1GB RAM and my Monitor requires 256MB in-order to ...
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1answer
219 views

ubuntu 14.04 is slow @ 12gb Ram

Recently I was upgrade my ubuntu to 14.04 ,after that for any event(copying a file or running any application)it is only consuming 3gb of memory only . it is not able to use my entire Ram .Due to ...
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2answers
3k views

32 or 64 bit, which one is suitable for 3GB RAM but legacy specs? [closed]

Well, today when I headed to download page, there were 3 options for me as follows: 64 Bit 32 Bit (for machines with less than 2 GB RAM) 64 Bit Mac (AMD64) I know that you need a good system to ...
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1answer
266 views

Memory size reported by /proc/meminfo is less than my physical RAM

My laptop is having a total of 4GB RAM, but when I type /proc/meminfo it is showing only 2.5GB in Ubuntu 14.04. Why it is showing less memory than the actual?
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1answer
96 views

How to find out which programs are taking up alot of memory?

I've been getting messages that I have exceeded my quota limits. I am new to Linux and am not sure what to do. With windows, I could easily just go to Control panel, add/remove programs, and uninstall ...
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230 views

WIll ubuntu use my full ram in dual boot [duplicate]

When I run ubuntu in dual boot will I still be able to use my full 4 gb ram If i am not running Win 7 at the same time?
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48 views

Is it possible to suspend applications?

The main idea is to add a "suspend" button to the title(behind the "quit" cross button) of the application window that will copy the memory taken by application to swap/local storage with pid ...
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1answer
43 views

Cannot install g++ 4.8 on OpenVZ

I have everything set, but doing apt-get install g++4.8 gives me the following java (!?!?!?) related error. Setting up ca-certificates-java (20110426ubuntu0.10.04.2) ... Error occurred during ...
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1answer
150 views

How to utilize full ram memory

Im using Intel® Xeon(R) CPU E5-2680 0 @ 2.70GHz × 18 processor $ free -m total used free shared buffers cached Mem: 128899 15893 113006 24 ...
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1answer
57 views

Is it worth it to upgrade my ram? [closed]

I currently have a 1.9ghz amd processor and 4gb of ram. I'm wondering if it would actually make ubuntu ui faster if I upgraded to 8gb or is it not worth the bother with my current processor?
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26 views

Difference between System monitor and free -h [duplicate]

I have a Lenovo T430 laptop with 3.7GB of RAM. Since I started using this machine I observe the following strange behavior. If I do a lot of things, say have rails server running, a few nodejs ...
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1answer
83 views

Ubuntu Linux 14.04 LTS Server Edition information need

I was wondering what's the maximum RAM, and maximum CPUs does the Ubuntu Linux 14.04 LTS Server Edition can handle. I found a server computer I want to buy, which is a SuperServer 4048B-TRFT. I don't ...
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1answer
68 views

RAM vs UBUNTU probem [duplicate]

I have a problem with Ubuntu's memory management. I am running 32-bit Ubuntu 13.10. My system is only running Chromium. However, when I run free -m, it returns: total used ...
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1answer
298 views

I only have 1GB of ram, what can I do to improve the performance on my 32-bit 14.04 system? [duplicate]

I'm running a fresh install of Ubuntu on an old iMac. It was going painfully slow on OSX so I wiped that and installed Ubuntu overtop of it hoping it would speed things up a bit. I'm not going to be ...
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2answers
3k views

How to increase video memory in Wine? (Wine version 1.6.2)

I'm trying to run a program(BeamNG.drive) on Wine 1.6.2, and there seems to be a problem. See, here's the thing: I can actually get it to load most of the way. But just before it would have finished ...
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2answers
14k views

What swapfile size to make? I have 4GB RAM [duplicate]

Very often I am out of memory and I noticed that I didn't have swapfile... What size should I choose? I have 4 RAM. All programs which I use are: Firefox, Thunderbird, Grive, Android Studio, that's ...
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2answers
748 views

How do I check ram latency?

I need to buy new RAM . First I need to know speed >> done Second I need to know latency >> how ? All I tried from google. dmidecode --type memory dmidecode 2.11 dd if=/dev/zero of=/dev/sda2 ...
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1answer
1k views

How to tell what kind of RAM is used?

I recently added another RAM module and while it is supported by my motherboard I'm not quite sure if it's of the same type as the one my notebook shipped with. How can I tell what RAM modules are ...
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1answer
99 views

GIMP memory increasing problem

I have a problem with GIMP in Ubuntu 14.04. When starting GIMP it works perfectly at first, but as soon as I copy a selection of pixels value in "system monitoring > resources > memory and swap ...
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1answer
749 views

How to set a memory limit for a specific process?

I tried to execute mpiexec -16 ... on a 384 GB RAM server, but it induced OOM Killer and was aborted. How can I set a memory limit for mpiexec execution? I know ulimit, but it might affect other ...
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1answer
5k views

What is recommended size or ram for ubuntu 64bit virtualbox host?

I want to use ubuntu 14.04 64bit as a host to run virtual box. Some places say that the minimum ram requirement for ubuntu is 512mb where as on the downloads section it says that 64bit is only for ...
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1answer
3k 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. ...
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1answer
247 views

32-bit PAE - Only 2 GB of ram recognized, 4 GB installed

Ok, there are a lot of this question and still I don't have an answer, so maybe I give it a shot asking the question. I recently bought a 2 Gb RAM and put it into another DIMM slot. So now I have 4 ...
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2answers
142 views

Can't find where memory is being used

I'm still a novice with Ubuntu, and have converted an old Toshiba L655D to use the OS. I have 3gb of memory installed, and this appears on on the GRUB memtest. But within Ubuntu, looking at free -m ...
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1answer
48 views

Use/See whole the flash memory space [closed]

When we bought a N Giga Byte flash memory, the free space that the OS provide for us, is less than N GigaBytes. For example, for a 2 GB flash memory, total space that we can use, is 1.86 GB. As far ...
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0answers
310 views

huge cached memory, mostly freez system :(

I have a problem with system memory cache, i think it is bigger than normals. after 5-10 minute of usage, system become unusable and i must restart my "Asus X451-CA" laptop. this command ran upon user ...
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1answer
462 views

Random reboots/shutdowns after RAM upgrade

I'm running Lubuntu 14.04 on an old Dell Dimension 8200. After installing two 512 MB RAM chips (essentially increasing the RAM form .25 GB to 1.25), the system randomly shuts down or reboots. Is ...
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67 views

Why does it state that *-cache:1 DISABLED at lshw command

It seems like my memory is working correctly but I am puzzled by the output of the following command. Is the memory disabled and how do I go about testing it if it may be. $ sudo lshw -C memory ...
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1answer
2k views

/dev/sda1 /boot is full [duplicate]

I know there are a lot of questions like this but I've tried pretty much to understand what to do and failed. By df -h I know that my /dev/sda1 /boot is with 100% use. I'm not understanding what I ...
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2answers
63 views

Ubuntu 13.10 (32bit) on acer aspire one

Has anyone ever tried Ubuntu (32bit) on an acer aspire one d255 2dqkk with 1GB of Ram or 2GB? At the moment I have 1GB installed and I would like to add 1GB more.