General :: Status Of Memory Usage And Disk Usage Using Sigar In Windows And Ubuntu

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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Fedora :: Hidden Disk Space Usage \ Can't Figure Out Where The Runaway Usage Is?

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:

[root@Zion ~]# df -h
Filesystem Size Used Avail Use% Mounted on


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Red Hat / Fedora :: Get The Value Of CPU Usage - Memory Usage ?

Jan 13, 2009

I am sure that all of us know the result of top command in linux. i want to get the value that the top command return as CPU usage, memory usage. so how do i do(programming relation)?

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Security :: Hard Disk Memory Usage Weirdly High

Apr 2, 2010

i am having a problem that i would call a bit "important" with my server. so, from last 3 weeks the used space of my hard disk (RAID I) started growing up. i have 2 x 1 tb HDD working on RAID I and i did not install anything those weeks. the space just started changing from 90 GB till 580 GB. now the situation is stable there but i think it's not normal.

the bandwidth usage is low (like 120 gb in 2 months) and i am running 6 counter strike gameservers, a forum, a very little website and some local stuffs... a friend of mine told me that my server could have been hacked but i am afraid it did... some useful informations: when i reboot the server the used space goes down again to ~100 GB and then it starts going up again. i cant really find where all those files are located:


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Server :: "free" Shows Far More Memory Usage Than Summing Up Application Usage?

Aug 6, 2010

I've come across a really strange issue with one of my RHEL servers. The "free" command shows that 7019 MB of memory are actually in use by my system, but when summing up the actual usage (or even virtual usage like the example below) it doesn't add up - the sum is far less than what is reported by "free":


[root@server1 ~]# free -m
total used free shared buffers cached
Mem: 12011 7946 4065 0 4 23
-/+ buffers/cache: 7919 4092


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General :: Ubuntu - Memory Full, Process Memory Usage Doesn't Add Up In Top?

Mar 18, 2011

I have a computer with 16GB of ram. At the moment, top shows all the RAM is taken, (NOT by cache), but the RAM used by the various processes is very far from 16GB.I have seen this problem several times, but I don't understand what is happening.My only remedy so far has been to reboot the machine.

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General :: Unix - Monitor Average CPU Usage And RAM Usage On One Process System?

Nov 15, 2010

Is there any way to monitor one process' CPU usage and RAM usage over time on Linux? I am trying to change to a cheaper VPS and need to work out what level of CPU and RAM I need!

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General :: TOP Command Memory Usage?

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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General :: Memory Usage In Top Is Not Correct?

Apr 15, 2011

I am a bit worried about my linux vserver box. No more memory is left. To investigate this issue, i was looking at "top". But it deeply confuses me. It seems that no more memory is left, altough the process list in top never adds up to 100%


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General :: How To Maximize The Memory Usage

Mar 31, 2010

Maximize Linux Memory usage

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General :: Monitoring A Box - Memory Usage ?

Jul 15, 2010

I wanted to know the best way to monitor memory usage, us space and processes and receive an email if a problem occurs?

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General :: Display The Memory Usage Of Each Process If I Do A 'ps -ef'?

Jan 29, 2010

In linux, how can I display memory usage of each process if i do a 'ps -ef'?I would like to the 'virtual memory', 'res memory', 'shared memory' of each progress. I can get that via 'top', but I want the same info in 'ps -ef ' so that I can pipe the output to 'grep {my process name}'.

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General :: Memory Usage Check In Details?

Dec 18, 2010

I"m unable to find the memory usage however top shows me the following results.

Tasks: 90 total, 2 running, 88 sleeping, 0 stopped, 0 zombie
Cpu(s): 21.1%us, 1.4%sy, 0.0%ni, 74.0%id, 2.4%wa, 0.0%hi, 1.0%si, 0.0%st
Mem: 8313376k total, 7969976k used, 343400k free, 185496k buffers


and free shows the following.

total used free shared buffers cached
Mem: 8118 7764 354 0 181 7335
-/+ buffers/cache: 247 7870
Swap: 4000 0 4000
Total: 12119 7764 4354

how can i find the usage of memory which is being showed by top and free.

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General :: Detecting Source Of Memory Usage On A Box?

Jan 9, 2011

I have a toy Linux box with 256mb RAM running Ubuntu 10.04.1 LTS. Here is the output of free -m:

total used free shared buffers cached
Mem: 245 122 122 0 19 64
-/+ buffers/cache: 38 206


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General :: Multithreaded Application / CPU And Memory Usage

Feb 14, 2009

We run Jboss app server that of course is all multithreaded under one JVM. I have couple of question regarding monitoring on per thread basis:

1. Is there a way to see which thread is bound to which CPU core?
2. Is there a way to see the CPU, Memory usage per thread? Something like prstat on Sun box which is real time and gives detailed information about threads per CPU

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General :: Calculating Process Memory Usage?

May 13, 2010

What originally seemed like an easy thing to calculate has given me a big headache. Perhaps someone can help me with my issue. I am trying to find, in particular, how much memory certain application processes are taking. The process always is the same name, main_server, but with an argument to tell it what to do when running as a daemon.

When running the following command against all "main_server" processes, it produces a result in megabytes based on the output of the rss field in 'ps'.

for ea in
`ps -e -orss=,args= |
sort -b -k1,1n |
grep main_server |
grep -v "grep main_server" |


Currently I am left scratching my head. For capacity planning purposes, it would be nice to know how many more 'main_server' processes could run on the system without causing it to swap. Knowing the buffer and cache usage will go down as running processes demand more memory, I prefer to look at the free memory excluding cache and buffers. However, since 'ps' is reporting the processes are using more memory than free reports is in use without those things, I have no way to know how many more processes the system can support. I played around with different fields in 'ps', such as vsize, size, etc, but with no luck in matching up any numbers.

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General :: Top - Order Pids By Memory Instead Of CPU Usage

Jan 14, 2009

Command top displays the pids (tasks) by order of CPU usage. Could I make it order them by memory usage?

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Software :: Memory Usage General Definitions On Top ?

Oct 27, 2009

I was playing with top to understand ram memory usage of every thread but i am in trouble with some basic questions:

- what difference is between 'thread' and 'process'?

- what does 'virtual image size' means, and Resident size, Shared Mem size, Code size, Data+Stack size, Swapped size? I thought that the only important field is 'Memory usage', but it is represented as a percent value...

I have googled a bit, but nothing really helped me. before opening top i thought that memory is divided in several pages by every process/thread (?) and that this occupied memory would be counted as 'used memory', and nothing else.

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General :: Limit The Memory Usage Of A Specific Process?

Apr 24, 2010

I've written a program for a class that my professor will be testing in various low memory environments to see how it behaves when the program runs out of memory. Is there a way I can simulate the execution in a low memory environment without creating a virtual machine?

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General :: Free - Top And Htop Show Different Memory Usage

Jul 12, 2011

I'm trying to meter my memory usage. When I use these different programs, they all show me using different amounts of RAM.

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General :: Find The Only Particular User (usage) Of Memory Information?

Mar 29, 2011

how to find the only particular user (usage) of memory information

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General :: Find Total Memory Usage Of A Program?

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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Software :: Free Database That Has Low Memory Usage And Innodb And Memory Like Engin

May 3, 2011

I am looking for free database that has low memory usage and innodb and memory like engins that has C API and support trigger and client/server support for using in embedded linux systems.

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General :: Get The Each Process Actual RAM Memory Usage In 2.6.21 Or Higher Version

Feb 8, 2010

I woukld like to know the kernel command or linux kernel file name where i can get the process actual physical RAM usage in linux version 2.6.21 or hiher version.

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General :: Find Memory Usage Of Shared Library Running In System?

Nov 30, 2010

I need to find the memory usage of a shared library loaded in Linux environment.

I need this information for deciding on whether to make the library part in to application or a seperate application itself.

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General :: To Get The Disk Usage Of The System?

Sep 3, 2010

when we use the df command it list the disk usage list for all mounted files ..

#df -h
/dev/sda4 47G 34G 11G 78% /
varrun 1009M 120K 1009M 1% /var/run


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General :: Disk Usage By Unknown File

Jul 31, 2010

i am facing problem of space usage by unknown file on /var partition.

[root@test var]# df -h

Filesystem Size Used Avail Use% Mounted on
/dev/sda2 20G 3.3G 16G 18% /
/dev/sda5 39G 36G 769M 98% /var
/dev/sda6 15G 4.7G 9.1G 34% /var/spool/squid
/dev/sda1 487M 16M 446M 4% /boot
tmpfs 1014M 0 1014M 0% /dev/shm

where as when I checked the using du -sh in its maximum utilization is about 5.9GB. i want to know the space being utilized by whom.

[root@test /]# du -sh /var
5.9G /var

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General :: Getting The Disk Usage For Certain Files Per Directory?

Mar 25, 2010

I am trying to get the total file size for certain files per directory.

I am using

find `pwd` /DirectoryPath -name '*.dta' -exec ls -l {} ; | awk '{ print $NF ": " $5 }' > /users/cergun/My Documents/dtafiles.txt

but this lists all the files in the directories.

I need the total per directory for all dta files.

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General :: CentOS 5.4 - Disk Usage Information

Mar 16, 2010

I am trying to get my head around my new server. I am using CENTOS 5.4 x86_64 with 300GB harddrive.

The 300 GB been partitioned with the following:

Device Size Used Available Percent Used Mount Point
/dev/md0 99M 18M 77M 19% /boot
/dev/md1 16G 8.7G 5.8G 61% /
/dev/md2 246G 40G 194G 18% /home
/dev/md3 4.8G 1.6G 3.0G 35% /var
/usr/tmpDSK 3.9G 432M 3.3G 12% /tmp

I have increased teh tmpDSK as it was getting full very quickly. My question is, what are these md0; md1, md2 and md3 are they harddrive partitions and as md1 is getting full will that have an impact on my sites.

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Ubuntu :: 10.04 64-bit Using Over 1GB Memory Usage?

May 11, 2010

Is this normal? I check system monitor and the top most is xorg followed by compiz. When I first started with 10.04 few days ago it was around 300-500MB.

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