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10
votes
2answers
1k 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 ...
1
vote
1answer
1k 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 ...
6
votes
2answers
690 views

Ubuntu 13.04 memory usage doesn't add up over time

The memory usage on my Ubuntu 13.04 system doesn't add up over time. I've tried the 3.8.0-xx kernels and the latest 3.9 from /~kernel-ppa/mainline. When I first boot, it all adds up correctly but ...
2
votes
1answer
158 views

How to see how much memory/cpu Unity is using

I am trying to see how much memory and CPU the whole Unity desktop is using. For this I tried looking at the Unity process but since it is divided in many parts it became difficult. I want to see how ...
0
votes
1answer
18 views

Disk and Ram Memory size

I need to know the disk size and the ram size of LAMP + Chrome. How can I check it... on ubuntu 11.x and 12.x Thanks
0
votes
4answers
129 views

How to log memory usage per minute on Ubuntu Server?

I checked few programs such as htop or top command but couldn't find any features for logging per minute. Is there a way to do that for tracking memory issues ? edit: I was using linode and decided ...
1
vote
0answers
80 views

How can I find the memory usage on my GPU?

Previously I was checking it with nvidia-settings -q all | grep Memory I'm processing some scientific data on my GPU with numpy and theano. I was doing this with the gnome desktop running, and ...
0
votes
0answers
27 views

Server slowly runs out of memory [duplicate]

My Ubuntu 10.04 server slowly eats up memory. If you look at tops, it slowly starts using swap space. Eventually the amount of free memory drops too low and the kernel kills the worst process. A ...
4
votes
1answer
482 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, ...
11
votes
2answers
252 views

How to prevent so many instances of apt-check running?

I have an Ubuntu 12.04 server that just crashed because of a very obvious cause: 30+ of apt-check processes consuming all memory, the OOM killer kicking in, killing vital services. I'm not sure where ...
0
votes
1answer
116 views

top command not clear [closed]

I am using top command on my centos server. Mem: 8055100k total, 3832228k used, 4222872k free, 57968k buffers Swap: 8191992k total, 0k used, 8191992k free, 3574740k cached In case ...
0
votes
2answers
1k views

Chrome suddenly using too much memory, what's wrong?

I just upgraded my RAM to double what it used to have and for a couple of weeks everything was running great, but now Chrome is eating all of it, I hit 90% use with only one window and <50 tabs ...
14
votes
6answers
13k 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 ...
1
vote
1answer
177 views

Compiz's memory utilization increasing

I have been running Ubuntu 12.04, 64 bit, on my AMD desktop for quite some time. Last few days, I have been seeing the memory utilization of compiz to be increasing. I normally do not shut down the ...
2
votes
1answer
84 views

Looking to log memory usage and cpu usage every x interval on a box

I am looking to monitor memory and cpu usage on the box every minute or so. Any recommended ways on doing this?
10
votes
1answer
6k 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 ...
4
votes
3answers
2k 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 ...
2
votes
0answers
63 views

Why do I run out of memory even when nothing is running?

I am currently facing a problem that when I run Uclust, it keeps showing me mymalloc running ot of memory. The thing is that cuurently nothing is running in the system and my memory shows I am ...
3
votes
2answers
203 views

2 GB Ram, but Ubuntu runs slowly and hangs if doing too much

I think my system more than meets the minimum/recommended requirements for Ubuntu, but its still running slowly. Especially when I try to multitask by having 4-6 windows open, then it becomes quite ...
0
votes
0answers
49 views

Warning when available RAM approaches zero

This is a follow-up to Memory limiting solutions for greedy applications that can crash OS?: ulimit and cgroups are not user friendly, and besides, wouldn't work with applications that spawn separate ...
3
votes
1answer
238 views

Does 64bit ubuntu takes more memory than 32bit or is “quantal” more demanding than “precise”?

I've just clean-installed 12.10 64bit and i noticed an increase in memory usage. I used 12.04 32bit and was running about ~400mb on startup(gnome3 no effects) + firefox, now the machine uses about ...
1
vote
1answer
25 views

Dbuses and Apaches are using up memory

I recently noticed, in System Monitor, that multiple Apache2 processes are showing up (with the same "Command Line"). There are currently 6 of them, each with 7MB memory. I also noticed a whole bunch ...
0
votes
1answer
79 views

Fresh ubuntu installation - memory usage went from 3% to 41% - should I be concerned and how to remedy?

My memory usage was a 4% after a fresh ubuntu 12.10 installation after i install php packages etc using this gist, https://gist.github.com/4372049 my memory usage now reached 41%. should i be ...
0
votes
0answers
67 views

Memory allocation issue

I regularly code in C/C++. Today while compiling a program. it returned "KILLED". I believe it is because of memory management issues. I use dynamic allocation very rarely so its highly unlikely that ...
0
votes
1answer
251 views

Average memory usage after complete ubuntu 12.04 start up

When it starts up completely, I cas see that about 400-500MB of my 2GB Ram is being used. Right now that I have only started Firefox (and System monitor), I can see that about 1GB of ram is full with ...
0
votes
0answers
155 views

Is it normal that Xubuntu 12.10 uses as much RAM as Ubuntu with Unity? [closed]

I just installed Xubuntu along with Ubuntu 12.10 on a laptop and to my surprise, the amount of RAM reclaimed with no applications running (except terminal with free -m) is around 300MB. I know the ...
1
vote
1answer
264 views

Move WUBI installation of Ubuntu to a different partition in Windows

I don't have a lot of space on my D: drive and Ubuntu is taking 15 gigs of it so I wonder, is there a way of moving Ubuntu from D: to C: while keeping the files that exists on Ubuntu? Thanks
4
votes
2answers
3k views

Reduce memory usage

I have just installed the standard default desktop configuration of Ubuntu 12.10 (Quantal Quetzal). My PC only has 1GB of RAM and is struggling a little. What steps can I take to reduce the memory ...
6
votes
3answers
155 views

How to read correctly “free -m” output?

The output of free -m: total used free shared buffers cached Mem: 595 482 112 0 63 324 -/+ ...
8
votes
3answers
448 views

How do I throttle a command in a terminal window?

I needed to run convert with a lot of images at the same time. The command took quite a while but this doesn't bother me. The issue is that this command rendered my computer unusable while the ...
10
votes
4answers
1k views

How to know each TAB memory usage ?

Hi, is it possible to know that, if Firefox or any browser is opened, whats the amount of memory taken up by each TAB of web-browser ? I am just curious to know.
2
votes
2answers
2k views

What is process “/usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none”?

I am experiencing some serious performance issues with my Ubuntu 12.04 setup and thus looking for the culprit by running htop alongside my usual tasks. Aside from the usual suspects like chromium, ...
1
vote
1answer
27 views

Software to track application profile

I am developing a software for number theory investigation, and I am suspicious that is leaking memory. It would be very nice to log the CPU, and RAM usage of this program through some application. ...
5
votes
2answers
427 views

Is Chromium GTK+ theme lighter than the others?

Or is it heavier? What other aspects could one consider here beside aesthetics?
0
votes
1answer
1k views

Why is my /dev/loop0 showing full?

I have sufficent memory , but somehow I get my /dev/loop0 showing usage of 9 GB here's my df-h. Filesystem Size Used Avail Use% Mounted on /dev/loop0 12G 10G 1.4G 88% / udev ...
3
votes
4answers
740 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
2answers
301 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 ...
2
votes
1answer
50 views

How to move packages from the live image to a pool on the disc?

Currently I'm using UCK and trying to make Edubuntu 12.04.1 DVD launch installer on 256Mb RAM: How to install Edubuntu on a system with low memory (256 Mb)? I was reading release notes for 12.10 and ...
3
votes
1answer
143 views

Where is my ram?

I have 2GB installed on my machine running Ubuntu 12.04. After some time of use, I see much of my RAM used. The RAM does not free enough even though I closed all my programs. I included 2 ...
2
votes
1answer
342 views

Ubuntu not displaying full 4GB memory on 64bit installation! [duplicate]

Possible Duplicate: Why does Ubuntu only show 3GB of RAM? My Ubuntu install is no using 100% of the memory installed. lsb_release -a No LSB modules are available. Distributor ID: Ubuntu ...
2
votes
3answers
5k 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 ...
3
votes
2answers
253 views

Used memory in Linux? [duplicate]

Possible Duplicate: How can I monitor the memory usage? I see in System Monitor, used memory only 332MB, so free memory is ~3.4GB, but when I use command line: free -m, used memory is 1GB, ...
1
vote
1answer
334 views

Normal RAM usage for Ubuntu 12.04 + Unity?

My system is Ubuntu 12.04 64 bit + Unity and it uses ~480Mb with no other processes-apps open, just the core system. Is this the expected amount? It seems a bit steep to me but perhaps this is normal ...
1
vote
4answers
609 views

Is it worth upgrading RAM? [closed]

I'm thinking about upgrading my RAM from 1GB to 2 or 4 GB. I would like to have some idea as to whether buying more RAM would be worth the expense. How can I know whether I will see better ...
2
votes
3answers
292 views

What can I do to make Unity more memory-efficient?

I realy love Unity, but the most of the time I have to use gnome-shell because I only have 1.5 GB of RAM and when I work I have to use all these apps: fogger, firefox, compiz efects, empathy, gwibber ...
0
votes
0answers
473 views

Ubuntu 12.04 - polkitd using 7GB of memory

We have a production web server running Ubuntu 12.04. We have a total of 24GB of RAM installed into the system. The problem is that our process list is showing polkitd as using 6.8 GB of memory. I've ...
29
votes
5answers
8k 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. ...
4
votes
2answers
863 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 ...
0
votes
2answers
64 views

Why does my application crash without updating the log file (used '> my.log')

I am running mCruiseOn Server, which is a java based server side application (sockets, multiple threads, memcached, mysql) on a Micro EC2. It has been crashing often. I suspect memory usage may have ...
1
vote
1answer
274 views

Why does apache keep running out of memory?

All the time my apache2 runs out of memory, I have 6 sites running on it. My server specs are: 2 gig ram, 6 core processor, 60 gb hard drive, and a 1000 mb/s how can I sort the problem out? it ...

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