Ask Ubuntu Stack Exchange
Ask Ubuntu Stack Exchange

Questions tagged [ram]

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.

1489 questions
269
votes
4 answers

How to check RAM size?

What is the command to find the RAM size in computer? I want to see result in MB.
KonradDos
  • 2,971
218
votes
8 answers

How to find the frequency and type of my current RAM?

How shall I find out the frequency and type of my current RAM? My OS is Ubuntu 12.04.
Tim
  • 25,177
28
votes
6 answers

Why does Ubuntu only show 3GB of RAM?

I have an Asus G50vt-x5 laptop with 4GB of RAM installed. But Ubuntu 10.10 shows only 3GB of RAM. Why is it only showing 3GB of RAM instead of the full 4GB? output of free command is : neal@ubuntu:~$ free total used free …
nebula
  • 1,267
19
votes
6 answers

fdisk -l shows 16 ram disks /dev/ram0 ... /ram15

Ever since I upgraded to 15.10, fdisk -l reports 16 ram disks (/dev/ram0 ... /dev/ram15). I'm a bit unsure what those are needed for. Is it safe to delete them? If not, how can I get rid of that fdisk output?
RudiC
  • 293
19
votes
1 answer

Memory Usage statistics different in free and htop

When I run free -m on my command-line, it shows my used memory as show below. When I run htop the used memory shown is very low. Why is that? Is it some other kind of representation? I am new to Linux. So I am totally blank on these stuff. total …
Tarun Mohandas
  • 293
17
votes
3 answers

Why does Ubuntu show slightly less RAM than my computer has built in?

My machine's RAM is 8 GB. I have recently installed Ubuntu 17.04. Why does Ubuntu show me that it has only 7.7 GB and not the full 8 GB?
zshanabek
  • 355
17
votes
3 answers

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 bs=1G count=1 oflag=direct apt-get install…
bemonolit
  • 925
15
votes
3 answers

How does Ubuntu handle addition of RAM?

I'm thinking of upgrading my laptop memory from 8gb ram to 16gb but I first would like to research how Ubuntu will handle it. I already know that my laptop definitely supports adding more ram. If I just insert more ram will I have to change…
AlexFullinator
  • 1,459
  • 11
  • 39
14
votes
0 answers

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 used in my pc?
H3R3T1K
  • 2,401
14
votes
2 answers

Lots of ram. How to use it?

My PC has 8 Gb of ram. Is there any way to make ubuntu use most of it? I mean rarely drop caches and keep once opened programms in ram longer, preload apps on boot, etc.
user73331
  • 901
10
votes
1 answer

New 16GB of RAM installed yet I see 15.3 on my system. Why?

Just switched 4GBs to 16GBs of RAM. However, when I look at how much memory I have, it says 15.3. I'm just wondering why did my memory drop down when I just installed 16 GBs of RAM.
Geri Sati
  • 123
10
votes
2 answers

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 example, I want to see the RAM consumption of…
user284234
10
votes
1 answer

Is there a utility like baobab, but for memory/RAM?

baobab / "Gnome Disk Usage Analyzer" is my favorite way to visualize disk usage -- I'm not sure what the type of graph this is, but it makes sense to me -- diving deep into folders gets more detailed breakdown of the main "slice". Memory in the…
NullVoxPopuli
  • 289
9
votes
2 answers

How much ram is being used on my laptop?

I have 3987MB of RAM on my laptop. Task (System) Manager says that I am using 700MB of this RAM, whilst the command "free -m" says I am using nearly 1500MB. Which one is correct and why do they show two different values? Thanks for any help.
Kida
  • 91
  • 1
  • 2
9
votes
7 answers

Would adding more RAM increase my speed in Ubuntu, and how hard is this to do?

I've got a Compaq 6910p 14 inch laptop with 1GB RAM, 2.0ghz Core2Duo and a Mobility Radeon x2300. I was wondering if Adding more RAM would help my computer If I add RAM, will I have to reinstall ubuntu, do something special etc.
Quinn
  • 91
  • 1
  • 2
1
2 3
…
9 10