Questions related to memory usage related to RAM, swap; issues expansion, in Ubuntu.

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3
votes
3answers
7k views

Ubuntu on 256MB RAM [duplicate]

Possible Duplicate: How to configure ubuntu for lightweight low-memory usage? How can I reduce Ubuntu install size to the minimum, with GUI? I was wondering if I can use Ubuntu (scale down ...
7
votes
4answers
689 views

Where has all the RAM gone?

I have 1GB of RAM, and when I run NetBeans and Firefox, they get about 300MB of RAM. At some point, the system becomes very slow, probably 100 times slower than normal, switching windows (Alt+Tab) ...
2
votes
3answers
268 views

With two simultaneous users, how much memory is consumed?

Basically, it's my personal system (running 10.10) where I often switch from myself to my other myself (one login is for personal purposes, and the other one is the working login). So I come to ...
4
votes
2answers
1k views

System using a lot of memory and I cant find why

My Ubuntu is using an insane amount of ram memory. When I boot the machine it is using around 1,5 to 2 gig ram without me launching any applications. When I start firefox and vlc it maxes out. Going ...
3
votes
1answer
416 views

Changing to another distro: can the -home partition be kept?

I want to change from Ubuntu 11.04 to another distro and I have /home on a different partition than the other folders. I want to ask if it's possible to keep the same /home partion with another distro ...
5
votes
2answers
3k views

How do I get the actual used memory including RAM disks?

free -m does not seems to include memory used by RAM disks (tmpfs filesystems). Maybe because it's something in the kernel space? How do I get the real memory usage (or it's opposite, free memory) ...
6
votes
3answers
3k views

compiz huge memory leak- ubuntu 11.04-unity

memory used by the compiz app (ID 1527) when session is started- 45-55 Mb, memory used after 2 hours, 500 MB. i found the following bug report ...
4
votes
1answer
2k views

Moving files to /dev/shm ramdisk doesn't increase RAM usage?

I've been wanting to make us of a ramdisk on my Ubuntu system for a while, and have done a bit of reading online. Most of the advice centres around using /dev/shm to move files into RAM. I wanted to ...
3
votes
4answers
1k views

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.
3
votes
3answers
5k views

How to configure ubuntu for lightweight low-memory usage?

I just upgraded an old, secondary computer to the latest Kubuntu (10.10). It seems the effort was a bit too much for the hardware and one 512MB memory module died. I tried to take it away, clean the ...
3
votes
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 ...
10
votes
2answers
2k views

What is the difference between the memory usage report in System Monitor and the one by free?

I am using System Monitor 2.28.0. When I look in the Resources tab, I see a nice graph with for memory and swap. Memory is about 60% 2.3 GiB of 3.8. When I type the command free, I got : ...
44
votes
6answers
71k views

How can I monitor the memory usage?

I have used top to see the memory usage at the moment. But I would like to monitor the memory usage over a period of time. E.g start monitoring and then execute a few commands, and final stop the ...