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

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11
votes
2answers
8k views

How to lower Compiz memory usage

I have been following the updates that appear every week in how they affect the performance and resource usage of Compiz since I installed 11.10 (Right now I am in 12.10). For what I have seen, the ...
3
votes
1answer
266 views

Where'd all my memory go? [closed]

After using the laptop for several days without rebooting, I start to get into awful swapping problems (combined with very poor responsiveness during IO operations, swapping 10mb could mean that the ...
0
votes
3answers
465 views

why Ubuntuone takes 4GB of RAM memory

see the detail env: ubuntu 11.10 x64
0
votes
1answer
104 views

sound problem on high level of memory usage

I'm under Ubuntu 11.04 and I have 3GB memory Everthing's working good, but when the usage of memory is overcoming more then ~80% then the sound is crached. It sounds like a speaker is broken, you can ...
1
vote
1answer
2k views

Is memory leak a common phenomenon for gnome-shell? [closed]

Everyone says that gnome-shell uses much less memory than unity shell. But I find it is true only for a short period time. Under Ubuntu 11.10, gnome-shell 3.2, the cron "gnome-shell" uses about ...
1
vote
1answer
335 views

Why does gnome-sushi use that much memory?

I noticed that the Sushi (gnome-sushi) previewer uses around 60MB of RAM and wondered why it has to be so much memory, as I can only preview a single image/sound file at a time? eog (eye-of-gnome) ...
4
votes
2answers
1k views

Is it normal for my memory usage to be 8gb?

I just upgraded to 11.10 and while there are a few problems that seem like they might have gone away (about 50% of the time I couldn't boot properly - haven't seen that happen yet), occasionally my ...
7
votes
2answers
2k views

How to restore/change Alt+Tab behaviour/ram usage and a few other things after Ubuntu upgrade from 11.04 to 11.10? [closed]

I use Ubuntu for programming. I recently updated it from 11.04 to 11.10. There are some things I don't like in the new version of Unity desktop interface. I don't actually know if it is hard to ...
5
votes
2answers
9k views

Tracking memory process wise on Ubuntu

I have an rails 3 application with 100-200 daily unique visitors. The total memory consumed on the server(Ubuntu) is around 1.5-2 GB. I want to know how much memory is used by each process. What are ...
0
votes
1answer
528 views

How to stop excessive memory usage of unity-window-decorator? [closed]

I am using Ubuntu 11.04 on an AMD64 computer. When I boot the computer the memory usage of unity-window-decorator is few tens of MB (checked with System Monitor)c After many hours using Google Chrome, ...
3
votes
0answers
175 views

Why does Aide use all my memory and swap when running? [closed]

I have a Linux server running on a Linode.com VPS, where I'm trying to utilize aide to detect any issues. However, the nightly aide run uses up all of my available memory and swap (512MB RAM / 384MB ...
6
votes
3answers
5k views

How do I use oom_score_adj?

On 11.04, /proc/[pid] contains oom_score_adj, but man proc describes the old oom_adj. I have googled unsuccessfully for any information on how to use this. What I need to arrange is that processes ...
1
vote
1answer
103 views

Premature Termination of Processes

I sometimes find that when I run a process that I know uses up a great deal of system resources, it terminates unexpectedly. Is this because it becomes unresponsive, or is it because Ubuntu can't ...
7
votes
2answers
3k views

How to log memory and cpu usage of an application?

Similar to question How to log CPU load?, I would like to log memory of a process. The process I want to log, is killed on a remote server, and I want to find out the CPU load and the memory usage ...
17
votes
2answers
12k views

How do you find out which program is using too much memory?

Ubuntu has been crashing on me recently. I think its because it runs out of memory so I ran the free -m command and found that my memory usage was really high. So then, i ran top to find the culprit, ...
2
votes
1answer
585 views

How can I lower the memory usage in nautilus elementary?

Currently Nautilus is using around 175 to 185MB of RAM. This seems unnecessary, since there are no folders open, only dropbox and ubuntu one running (plugins), and no other known sources of this RAM ...
4
votes
1answer
1k views

Set OOM killer adjustment for process on startup?

Is there a way to set the OOM killer adjustment value right when a daemon process (Apache in my case) starts? I would like to give the Apache processes a higher likelihood of being killed and make it ...
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
676 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
259 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
392 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 ...
3
votes
2answers
2k 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 ...
3
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
4k 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
1k 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 : ...
30
votes
6answers
42k 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 ...