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

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How do I get smem to output useful results?

I recently installed smem on my ubuntu server with: $ sudo apt-get install smem It was installed correctly without errors. But when I launch it I don't get any useful information about my ...
2
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1answer
79 views

Memory is taken up by “invisible” threads

Xubuntu Saucy with 4GB RAM. When the computer is restarted and immediately after login, about 500 MB of RAM is taken according to free -m. Then I run some programs and memory usage goes above 3 GM. ...
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1answer
76 views

Is there a maximum swap partition size for 12.04, 64 bit

I am running 64 bit ubuntu 12.04 on HP Envy Spectre ultrabook, with 4GB of RAM. I have been running into problems with python code which uses RAM very inefficiently, see e.g. here, causing my code to ...
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1answer
50 views

Forgot to add swap memory during installation [duplicate]

In my ignorance I didn't add swap memory to my install. So my question is, can I work without it and if not how can I add it to my existing install? Love to get some feedback!
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1answer
38 views

Running an executable with fixed execution-time and memory limit and getting exit-code

What is the best way to run an executable with execution-time and memory(RAM) limit (e.g. 2.5 seconds and 32768 kB)? Also I need to get the exit-code if it exits without violating time and memory ...
0
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0answers
43 views

Setting Max Connections in MySQL server Globally [duplicate]

I installed my UBUNTU 12.04.4 LTS X64 yesterday and didn't installed anything except mysql-server and mysql-client. But htop showing 20 mysqld identical processes. *--Process----- MEM%---VIRT --- ...
3
votes
1answer
89 views

Will swap space auto-adjust when I upgrade my physical memory?

When I installed Ubuntu 13.10 I just ran through the default setup. Since then, I have decided to upgrade my physical memory. My question is, Will Ubuntu auto-adjust the default swap size to match ...
3
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1answer
70 views

How do I determine which process is using more physical memory?

I've already run free -t -m and ps aux --sort -rss, but I don't understand why there's a difference between the output of these two commands regarding the amount of total physical memory currently ...
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0answers
24 views

System Load Indicator show different ram usage

I have installed System Load Indicator on my pc. First, it shows different RAM usage than internal ubuntu System monitor. I mean while Syetem monitor is showing 750MB of RAM usage, System Load ...
0
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1answer
50 views

How much memory is free? [duplicate]

How much memory is free? From my understanding i have 1GB of memory, and it says free is 71MB? But why does it say that i have 536 free in buffers? So am I really using all my ram or not? ...
4
votes
2answers
152 views

How to use free -m to get memory usage for all users

I typed the free command to get the memory usage as follows : free -m output: I want to use this command to get the same info but for all users for example : I used this command .. because ...
2
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1answer
142 views

How to calculate the average of cpu usage and memory usage over a period of time in ubuntu

I have to generate reports for the following : 1- cpu usage. 2- memory usage. The generated reports must be looks like the following forms : I've tried with more than one command to get ...
2
votes
1answer
71 views

Why is almost all of the 3 GB RAM on my HP G62 laptop always used? [duplicate]

I am using Ubuntu 13.10 on a computer with 3072 MB RAM and 20 GB swap. It is an HP G62 laptop which overheats pretty regularly. When I type free -mt in the terminal the output is: free -mt ...
2
votes
2answers
98 views

Deactivating swap file without any computer freeze

I'm currently coding on my laptop: 4 gb of rams, never using more than 2.5-3gb but at times, I'll mess up my programs, run them with memory leaks and they'll make the computer freeze when trying to ...
0
votes
1answer
73 views

4GB installed, but 3GB read on Ubuntu server 10.04 LTS 64 [closed]

I have 4GB of memory installed, but only 3GB seems to be usable. How can I resolve this? Processor : Intel(R) Pentium(R) Dual CPU E2200 @ 2.20GHz root@ubuntu77:~# uname -a Linux ubuntu77 ...
0
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1answer
69 views

finding amount of memory usage of a command in bash

I wrote a program and now I need to measure it's performance so I use time to find timings but is there any command like time that I could run my program under it and have the amount of memory used by ...
0
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2answers
74 views

How can I see the memory occupied by a file and folder and also entire directory from terminal?

I'm having some files and folders in the "My Documents" directory. What are the commands to see the size of a file and directory in a terminal?
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2answers
92 views

is my ram usage natural? (clean ubuntu install by vps provider)

I'm still a Linux beginner, but for my university project I had to rent a vps. When I got my vps, free -m shows me that it is already using 175 mb of 2gb. I wanted to ask that is this normal? ...
3
votes
1answer
190 views

Which processes with daemon are unnecessary?

I saw 3 processes which have "daemon.py" at the end of them and use 10 MB of memory each of them. What do they make? Also there are a lot of processes which have daemon inside. Are they really ...
0
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0answers
57 views

High Memeory usage on 12.04

System : Ubuntu 12.04.3 LTS (GNU/Linux 3.8.0-34-generic x86_64) I am using webmin to see the system since i am not a Linux Expert. Since last week there is an unusual memory usage in my system. Is ...
3
votes
4answers
53 views

How to monitor the memory consumed by a process?

I have a process that I would like to see how much memory it consumes while it is running. Right now I do this: ps faux | grep casper But that just gives me the information of that moment. It ...
0
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1answer
85 views

How much swap space should I configure? [duplicate]

How much swap space should I have? I have a 500GB HDD and 6GB RAM. My specs: Release 12.04 (precise) 64-bit Kernel Linux 3.8.0-34-generic GNOME 3.4.2 Memory: 5.7 GiB Processor: Intel® Core™ ...
0
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0answers
30 views

Boot-time fsck on all 16 drives gives memory allocation failures

My installation of Ubuntu Server 12.04 has each volume set to a check interval of one week. However, there are 16 drives (boot plus 15 storage drives, all ext4). Apparently this is too much for a ...
0
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1answer
53 views

Ubuntu - One process running - Tons of memory used [duplicate]

I've installed Ubuntu using the Microsoft Windows Installer, and it's running pretty slow. I've got 3.8 GB ram on my computer, and by running free -m I'm getting the following results : ...
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0answers
34 views

ubuntu server 12.04 lts use many memory

I have installed Ubuntu 12.04 on a cloud server (based on VMWare). System start normaly with about 300MB of memory, after 20 minutes begin to load memory and i see 3GB of memory usage. I don't find ...
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0answers
203 views

Problems after upgrading to 13.10

My laptop has 4GB of RAM and has seen Ubuntu installations since 12.04. I use 64bit version of Ubuntu. I use my laptop for work and has Oracle JDK and eclipse installed - same setup since 12.04 and ...
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1answer
248 views

Unusally High RAM usage by ESET NOD32 (Linux Desktop)

Recently, I'd encountered unusally high RAM usage on both my Ubuntu 12.04 LTS laptops (32-bit and 64-bit desktop OS versions). I noticed that, immediately after system startup, ESET will load 2 ...
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0answers
19 views

How can I find which process is using up memory? [duplicate]

top reports that 99% of the memory is used. But when sorted by memory usage Shift+M I only see about 20% being used. How can I find out which process is using all my memory? $ top top - 21:13:30 up ...
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0answers
451 views

Why Nautilus consumes way too much memory? [closed]

In the past 4/5 days I noticed something very strange. I am using Ubuntu 13.04 amd64. After some time from the system login I think an hour or two may be, either nautilus or python process uses too ...
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2answers
2k views

How to free space in root directory and delete unnecessary kernel files?

Off late I am receiving continuous system alerts regarding low disk space in my root directory. I am given to understand that all my system updates are being saved in my root directory instead of my ...
6
votes
2answers
3k views

'zeitgeist-fts' always using a lot of memory!

What is zeitgeist-fts?! It's always in the 3 top positions of memory usage (competing with Firefox and Compiz!!) ... After a fresh boot it uses about 30 MB, but after some hours or a day, it goes ...
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0answers
309 views

Ways to reduce memory usage

I'm using xubuntu now and from time to time I come across the problem that memory is out of space. This happens when I open both Chrome and Eclipse, also, even I exited Eclipse, /usr/bin/java is ...
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0answers
112 views

unity-music-daemon uses large amount of memory

When I boot my Ubuntu 13.04 up, I noticed that my fans goes crazy and when I had a glanced at System Monitor, I saw that a process called unity-music-daemon is using a large amount of memory and CPU. ...
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0answers
58 views

How to persistently limit resources of a program

I am running several programs on my computer and under normal circumstances my RAM (2GB) and CPU power is sufficient. However it occurs that a single program suddenly turns the system permanently ...
0
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0answers
66 views

machine is very slow

I'm using Ubuntu 12.04 and now its getting very slow in process some thing, it takes a long time to do something, I don't know what or why. I've attached the htop result here. It takes pretty much ...
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vote
2answers
2k views

Ubuntu 13.04 extremely slow on my desktop

I have installed ubuntu 13.04 on my desktop computer without doing any partition, and no any dual boot operating system. My desktop hardware components are given below: Hard disk 500GB Ram 2GB ...
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2answers
51 views

Ubuntu memmory consumption problem [duplicate]

Ubuntu Gnome on my laptop boot up using about 310 MB Ram. When running couples of program, the system takes 700 to 900 MB. Then, I close all programs, Ram usage drops but it keeps at 450 ~ 600 MB Ram. ...
0
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1answer
748 views

Comparing Virtual Memory Size with Resident Size

I came across this stackoverflow post: http://stackoverflow.com/questions/10400751/how-do-vmrss-and-resident-set-size-match The answer voted correctly states the following: "So, VSS should be ...
1
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1answer
227 views

Wheres my memory going?

My machine keeps 'freezing' before eventaully logging out with all the programs exiting. This is rather annoying, and I think its because I keep running out of memory. I am not running any custom ...
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votes
1answer
127 views

Is this Ram usage normal?

My system is Ubuntu 13.04 64 bit + Unity and it uses ~600mb with no other processes-apps open and with preload 900mb, just the core system. Is this the expected amount? It seems a bit steep to me but ...
0
votes
1answer
61 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
8
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2answers
1k 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
0answers
241 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
30 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 ...
0
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4answers
492 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 ...
3
votes
1answer
210 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?
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1answer
2k 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 ...
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vote
2answers
3k 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 ...
2
votes
0answers
116 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 ...
4
votes
2answers
695 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 ...