General :: Different Space Usage (Discus Program Versus Command)
Mar 24, 2011
I have a debian linux on my server. My disk space is only 10GB. When I check the space usage with discus program, it says:
Mount Total Used Avail Prcnt Graph
/ 9.39 GB 8.30 GB 1.10 GB 88.3% [*********-]
+ib/init/rw 124.3 MB 0 KB 124.3 MB 0.0% [----------]
/sys 0 KB 0 KB 0 KB 0.0% [----------]
/dev 120.1 MB 92 KB 120.0 MB 0.1% [----------]
/dev/shm 124.3 MB 0 KB 124.3 MB 0.0% [----------]
But when I use this command:
du / --max-depth=0
It says:
1860864 /
Why the stats of discuss is not like du command?
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May 13, 2010
i want to use the command at to execute a script on a specific time FOR EXAMPLE :at 12:30pm but the script does not have to ececute at all, I DIT IT BUT THE SCRIPT EXECUTES EACH 12:30pm (that'sy problem) i want to write a script that will execute each two months from a specific time . for example: from january 12, 2010 the script has to run before march 12,2010
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Dec 10, 2010
I'm running into a problem where my system is running out of disk space on the root partition, but I can't figure out where the runaway usage is. I've had a stable system for a couple of years now, and it just ran out of space. I cleaned some files up to get the system workable again, but can't find the big usage area, and I'm getting conflicting results.For example, when I do a df it says I'm using 44GB out of 58 GB:
Code:
[root@Zion ~]# df -h
Filesystem Size Used Avail Use% Mounted on
[code]....
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Mar 16, 2010
I have a third party static library (libSTATIC.a) that I cannot recompile into a shared library. I want to create a shared library (libSHARED.so) that uses the C functions in the static library. Is it possible to do this? In other words, when linking a C program with gcc by using the -shared flag, is it necessary that all all libraries invoked in the program (even low level libraries such as libc for example) be available as shared libraries as well?
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Jan 18, 2011
I'm doubtful about my Ubuntu's ram usage, as I'm getting different values in top and System Monitor:
System monitor:
Top:
What could be causing this? What should I trust, Sysmonitor or top?
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Jun 3, 2010
I've been using SuSE for a while and something has been bugging me. Not a show stopper, but nevertheless, an interesting one. Most tutorials, forum posts, etc. recommend using a sudo command to accomplish stuff. For example:
Code:
sudo make install
sudo vi file
However, this does not always work. For instance, I was recently working on a resolution problem with my ViewSonic VX922 - it would only display at 1024x768 rather than the native 1280x1024. Viewing some posts, I found the command "sudo sax2 -r". What I discovered is that there seems to be a big difference between sudo and su
Code:
drkhelmt@SPACEBALL1:">sudo sax2
root's password:
sudo: sax2: command not found
drkhelmt@SPACEBALL1:">su
Password:
SPACEBALL1:/home/drkhelmt: #sax2
SaX: Checking update status for intel driver
SaX: initialization already done
SaX: cal [ sax2 -r ] if your system has been changed !
SaX: startup
SaX: X server:0.0-> grant
SaX: importing current configuration
SPACEBALL1:/home/drkhelmt: #
So the question, why does the command sax2 (and others) work when after the su command rather than a sudo?
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May 16, 2011
I want to find all users shown in the /home/ directory whose disk consumption is more than 500MB. The following command works as expected.
cd /home/ && du */ -hs
68K ajay/
902M john/
250M websites/
From the above example, only 902M john/ should be returned.
How can I make the find command output the same results?
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Sep 22, 2010
I wrote a program that multiplies 2 matrices using multi-threads and another one using multiple processes and shared memory. Both in C.I need to find the total memory usage of these programs. I know of the top command, but when my matrices are relatively small they don't even show up on top because they complete so fast, how can I find the memory usage for these instances?Also, how can I find the total turnaround time of my programs?
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Jul 27, 2010
Since I own one of those Centrino based Core 2 notebooks that create annoying buzzing noises when idle (= entering C3 or C4 power saving states), I'm looking for a program that creates artificial CPU usage. It should allow me to limit the CPU usage to a certain percentage (I know that there are a lot of easy ways to create 100% usage ;-).
Another option would be to disable the C3 or C4 states, but in newer kernels the sysfs interface to set the max_cstate on-the-fly was removed for some reason, and I don't always want to reboot after switching from AC to battery (and vice versa).
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Aug 11, 2009
Does top command find out cpu time and process time for an interval and then calculates the process's cpu usage
eg: process time(interval 5sec)/cpu time (interval 5 sec)*100 %
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Dec 14, 2010
I'm need how to use the man & cat commands in red hat linux
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Apr 13, 2011
Under SuSE, (Mem: 31908592k total, 31421504k used,) how do i know which process or program using my memory?
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Apr 13, 2010
Im trying to list the cpu usage of all process that have a cpu usage of 10% or more. Im not interested in the lower usages. Im using the top command and can get a list of all the cpu usage for all the process but cant only get the processes with 10% or more. I'd want these processes sent to a new file. Would I be able to cat the cpu usages and PID into a file?
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Apr 18, 2010
In Red Hat, suppose if root user wishes to give a privilege to run the fdisk command to a user named sam.And he makes appropriate configuration changes in /etc/sudoers file. Now when sam wishes to run the fdisk command, then he has to issue:
Code:
[sam@system43~]$sudo /sbin/fdisk -l
Password: But in ubuntu, after the same configuration being done, what sam needs to do is:
Code:
[sam@somesystem43~]$sudo fdisk -l
Password: ***
That means, in ubuntu the user need not type the full path of the command. I wish to know how can I make red hat system work like ubuntu as far as the sudo usage is concerned.
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Jan 7, 2010
how to Check the disk usage of different linux servers using df -h linux command. My host server is 66.50.100.1, I can check its disk usage by using df -h command. I got my disk usage. Now using my host server Im going to check the server 66.50.100.3 disk usage. Is its possible to check the disk usage of 66.50.100.3 using my host server?
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Jan 28, 2010
I have written a programme in gcc
#include <time.h>
#include <stdio.h>
int main(void)
[code]...
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Feb 8, 2011
I am trying to load vmware server. When running vmware-install.pl it asks where to load the bin files. Default is /usr/bin. Cool with me, so I accept then get the error:
"There is insufficient disk space available in /usr/bin. Please make at least an additional 5924k available or choose another directory."
Ok, so in my searches, most cases people actually do have a full disk. I have 30gb free. Another post somewhere stated it could be the file system used, so I tried different file systems. Now I am back on etx3. What's odd is when I blow away the OS and reload and try to install VMware again, I get a different number to be "freed" in the error. Choosing another directory only yeilds a different disk space request.
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Apr 12, 2011
Is there a command to check specific processes that's using the most IO/disk usage? I know sar and ps but I want more specific details on IO on individual processes
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Jun 12, 2011
Just picked up a 64g M4 SSD, bit small I know but wanted to have a play and try the SSD thing out. I am chasing partitioning suggestions. Problem is, you guessed it, space. As always with SSD's, space is at a premium. Formatted I am apparently going to end up with about 58gig usable. A disk usage analysis of my current Fedora 14 install on a 7200rpm drive gives me 30g of files in home, and about 15g to root.
Of that 30g of home files, 8g is tied up in Thunderbird alone, so was going to allocate about 45 to /home; and about 3g to swap. Problem is / (root) I have 8 gig tied up in /usr, and another 5 gig tied up in /var. Is this normal? Can I delete some of those files or will a fresh install of Fedora 15 blow out eventually to fill all that. I know I am trapped with /usr on the SSD but can I move /var to a 7200rpm instead of chocking up my teeny weeny ssd? What have other people partitioned their SSD's as?
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Apr 3, 2011
How can i limit disk space usage for one user? Like.. User john123, you can only use 100mb of my harddisk. User jake155, you can only use 250mb of my harddisk.
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May 27, 2009
I want to get the disk space usage of each user on the machine. I Have found the command -du but how can I consultate the usage per user? The only thing I can is to consultate the usage of maps...
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Mar 2, 2009
For some reason, if I leave my Linux box running for several days, the swap space and RAM slowly fill up until my system is so slow that it takes around 15 seconds just to open a new tab if Firefox (Iceweasel, specifically). I have 512GB RAM and almost a gig of swap; how on earth does it fill up so much? Even if I close all my programs, there's still over 600MB swap used and all RAM is full. I've included a screenshot of 'top' running just about two minutes after I closed all my running programs.
(Before I closed it, I had only 71MB swap free.) I know that Linux is supposed to make good usage of RAM, but isn't this over the top? Is there a way to force it to use only required memory with no or little extras kept in RAM? Just thought I'd add in the fact that I'm running Xfce as opposed to KDE or GNOME in an attempt to have a smoother running system on my old hardware. Also, what's the "VIRT" column?
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Apr 21, 2010
well I went to wubi-installer, and installed Ubuntu, and I love it, I don't want to go back to windows 7, but anyways, I set Ubuntu to my D: Drive, (200GB Space) and I installed Steam (Steampowered.com) to get my games on Ubuntu. I installed all of my games, but here is a big problem, I can't figure out how to use more than 30GB on Ubuntu, it just doesn't work. I got GParted, and the D: drive is set to 195 GB (200, but Ubuntu used 5GB)
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Jan 10, 2011
On one of my servers the "free" command tells me that a lot of swap space are in use. What I'd like to do is to determine which processes have been swapped out. I tried issuing "top" and sort by the "swap" column, but this doesn't seem to provide correct values - when performing the same excersize on another server with close to no pages swapped out, the sum when adding the swap value for each process greatly exceeds the swap usage reported by "free". So how do I go about determining the swap space used for individual processes?
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Jun 10, 2009
I'm using vmsplice & splice to send memory buffers through a TCP socket. I have two issues using these methods:
1) According to the documentation, when using vmsplice with the flag SPLICE_F_GIFT, you cannot modify the buffer you've "given" the kernel. Currently, each time I want to send a buffer, I have to allocate a page-aligned buffer (fill it with data) and send it using vmsplice- splice. When can I deallocate this buffer? Is it possible to modify this buffer after the buffer is sent through the socket?
2) The buffer should be page-aligned both in memory and in length, but most of the time the sent messages (to the TCP socket) - are smaller than a page size - is it possible to "clear" the pipe from the remaining buffer?
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Jun 14, 2010
I'd like to get cpu usage for my program which is related with xen hypervisor.
and i could find some.. from
/proc/stat
vmstat
system information on x-window
and virt-manager
but i found that every program shows different information of cpu usage.
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Jun 25, 2010
We use a SLES 10 SP2 file server. This file server has all type of files. We want to know what is the amount of space used by mp3 files. What we need to know is the total space in disk of mp3 files. I've been testing du command, and find command, but with no satisfactory results. Does anybody know how to do this?
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Jul 13, 2011
I am running the command on a Mac but due to it being a generic unix command and a command line query.. I thought I can write on this forum.. I am running the command
Code:
df -h | grep '/dev/'
I get
Code:
/dev/disk0s2 389Gi 62Gi 327Gi 16% /
/dev/disk0s3 76Gi 24Gi 52Gi 32% /Volumes/Backup
/dev/disk3s2 500Gi 47Gi 453Gi 10% /Volumes/Misc
Note the huge space between the 1st and 2nd Column..
This is because currently I have some NAS drives mounted which are not showing due to grep. When they are not mounted. The output is fine with equal spaces between each column (like between col 2 and 3.. or 3 and 4). I want to do a (dare I say) sed or awk or something to reduce the space between 1st and 2nd col. So that it has space like between col 3 and 4.. or 2 and 3. This is because I am showing this output somewhere and because of the space its not showing up correctly.Also I hope the command will still work when the NAS drives (afp) are not mounted.. basically consistency. The spaces are not showing properly in the quote tag. Changed it to CODE tag.
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Jan 4, 2010
Logical Memory Space of 4GB is divided in to 3GB User Space and 1GB Kernel Space. Always. Correct?
1. How can we change it? (just changing value of PAGE_OFFSET is okay?)
2. If system have only 256MB of memory (embedded system) and suppose Kernel Modules eat away all the memory during boot. User space will be left will no memory. Is this case possible?
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Mar 15, 2010
I was trying to get the status of memory usage and disk usage using sigar in windows and ubuntu. done this in windows by just copying the sigar library into jdk library. But i was unable to do so in ubuntu. I've copied the library to java-6-sun library but still can't run the program.
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