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

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1answer
523 views

memory usage doesn't add up [duplicate]

Possible Duplicate: How do I get the actual used memory including RAM disks? If I add up all the memory usage I get from top -b -n 1 or htop or ps aux, I get a number that is a few GB under ...
61
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5answers
30k views

Why is swap being used even though I have plenty of free RAM?

I thought the whole essence of swap was to act as a temporary storage safety net when RAM was full but my swap partition is constantly being used even though I sometimes have as much as 3GB free RAM. ...
2
votes
2answers
417 views

My Right-Click Properties option in Root File System shows 140.8 TB memory of Contents

Partly it is a Curious question . ( Pretty stupid though) I am using Ubuntu 12.04 64-Bit system with Unity as DE. I was doing a routine to free -up some memory space by manual deletion of unwanted ...
6
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2answers
2k views

Why don't the %MEM values in top add up to the total used memory?

I'm currently debugging performance issues with my VPS and for that I'm trying to understand which of the processes eat the most memory. Reading top, here's what I get: Mem: 366544k total, ...
0
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1answer
405 views

rhythmbox-scope consuming lots of memory

I've noticed that rhythmbox-scope for unity-hud's music-lens is taking something above 18% of my memory all the time without doing anything useful. Actually using it for searching music doesn't ...
3
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2answers
1k views

Why I'm seeing 7 users, a abnormal usage of Virtual Memory, lots of stream connections and all process sleeping?

Using a Toshiba Satellite l645d s4025 amd dual core p320 2.1ghz 3gb ddr3 ram 250 gb hdd Below is the incomplete top report(don't know how to select all to copy) Using an Ubuntu 12.04 amd64 ...
7
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4answers
5k views

Is there an application that can show memory usage in a similar manner to top?

I would like to leave an application running in my terminal that shows me the memory usage, similar to how top shows CPU and other info, and iotop shows the top I/O users. Does such an application ...
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0answers
45 views

How HP Prolient Ubuntu server 11.0 support 4 gb [closed]

I have upgraded the server ram to 4+4= 8 gb, but after the physical installation, I restarted the server and when it came to the login prompt, it showed only 2+2 = 4 gb. Please Help. Thanks
3
votes
1answer
128 views

Is there a way to track a run away process?

Recently I've been getting a rather annoying problem, which seems to be linked to Firefox-Trunk, Thunderbird-Trunk, or possible Compiz (default 12.04 compiz with Unity). At random (it seems) the ...
0
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1answer
52 views

Warning message saying the installation may fail in such circumstances

The warning message says "256MB of memory are required only 222 are available. The installation may fail in such circumstances. Do you wish to continue anyway?" Im confused here i have 37GB of free ...
0
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1answer
112 views

Ubuntu Server: Intel Driver Uses Lots of RAM

I have tried installing Squeeze, Lucid and Oneiric on my new dedicated server (The host doesn't have Precise yet), and noticed that on fresh install they have very different memory usages. On Lucid ...
2
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2answers
479 views

/var partition ran out of space. Upgradation of softwares failing. Any workaround?

When trying this : How to install the same softwares in 12.04 which were there in 10.04? , after fetching all the packages, during the process of unpacking, my 2.88GB /var partition ran out of space ...
1
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1answer
2k views

Ubuntu locks up when swap full

I have a Ubuntu system running xfce and 2 GB RAM. I have a 1GB swap file which, when multitasking begins to fill up. When I have even a small amount of free swap, I have no issues, but the second the ...
13
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2answers
4k views

Can I copy large files faster without using the file cache?

After adding the preload package, my applications seem to speed up but if I copy a large file, the file cache grows by more than double the size of the file. By transferring a single 3-4 GB ...
20
votes
2answers
6k views

Memory limiting solutions for greedy applications that can crash OS?

I use my computer for scientific programming. It has a healthy 8GB of RAM and 12GB of swap space. Often, as my problems have gotten larger, I exceed all of the available RAM. Rather than crashing ...
0
votes
1answer
456 views

Ubuntu 10.04 eats more than 500MB of memory

After installation System monitor shows that memory usage is over 500 MB - pure system after start. There are no processes which use more 20 MB of memory. Other versions of Ubuntu used about 200 MB. ...
3
votes
2answers
367 views

is it normal for ubuntu 11.10 to use 1 GB of memory?

On my older system i ran the 32 bit version of Ubuntu with 4 GB of ram and noticed it rarely come near 1 gig of usage.I have my new system running with the 64 bit version.The new system is a quad ...
7
votes
2answers
494 views

How to configure how much RAM usage should to start swapping on Ubuntu

I always notice that Ubuntu start using swap, as soon as the RAM usage is around 60-70%. How to configure it so it should wait so RAM usage became 80-90%. And is there a way to empty the swap, as soon ...
1
vote
2answers
880 views

KDE4 memory use optimization

Are there any good tips for optimizing KDE4 memory consumption? It feels like a memory hog, even when I have 4GB of RAM and i5 CPU it feels heavy. I disabled all effects but still it feels heavy and ...
5
votes
2answers
913 views

OS only reports 4.1GB of RAM and not the 6GB that is installed… why?

My ubuntu 64-bit 11.10 installed box has 6GB RAM but Ubuntu only uses 4.1GB. I have read various things about the 4GB limit etc, but all those talk about using less than 4GB. What could be causing ...
14
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2answers
9k views

Lowering 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 testing 12.04 and 14.04). For what I ...
3
votes
1answer
276 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
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3answers
470 views

why Ubuntuone takes 4GB of RAM memory

see the detail env: ubuntu 11.10 x64
0
votes
1answer
107 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
372 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
3k 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
12k 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
549 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
187 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
6k 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
109 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
4k 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 ...
19
votes
2answers
16k 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
614 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
684 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
266 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
411 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 : ...
38
votes
6answers
60k 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 ...