General :: Generating Logical Memory Addresses Of An Application?
Mar 15, 2010Is there any tool for generating logical memory addresses accessed by any application in linux ?
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General :: Application Virtual Address Space Memory Allocation - Memory Does Not Get Free
Apr 20, 2010I am using malloc and frees a lot in my program. It shows its allocated but when i remove it doesnt show as the memory is removed(I am using the top command to view VIRT memory usage). If this continously grows what would happen to my program (Will it go out of memory?)
View 4 Replies View RelatedGeneral :: Get Virtual Addresses Accessed By An Application During Its Execution?
Mar 17, 2010How to get the list of virtual addresses being accessed by any application during its execution time. I don't want the complete memory map but just the pages which were accessed during an application's execution?
View 2 Replies View RelatedGeneral :: Multithreaded Application / CPU And Memory Usage
Feb 14, 2009We 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
General :: Division Of Logical Memory Space In To User Space And Kernel Space
Jan 4, 2010Logical 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?
Server :: Using Some Application To Block IP Addresses?
Feb 16, 2011now I have managed my rsyslogd to log the firewall into a separate file I would like to use a script which looks into this file for intruders which for example try to ping, telnet, ssh, rdp etc into my dsl connection.And then use a kind of app or firewall on my ubuntu server to block them.Yes my firewall logs them but does not block them if the policy is enabled, so they have access on through the firewall and the connect to my server but I only want some known IP addresses have access through it and this I cannot program in the firewall so I have to use some extras.Or am I thinking way to far and is there a better solution with IPtables or app?Is it possible to watch tcp connections between the firewall from outside IP addresses and the ubuntu server?
View 7 Replies View RelatedSoftware :: Get Virtual Addresses Accessed By An Application During Its Execution?
Mar 17, 2010How to get the list of virtual addresses being accessed by any application during its execution time. I don't want the complete memory map but just the pages which were accessed during an application's execution?
View 1 Replies View RelatedNetworking :: Error: "SIOCSIFADDR: Cannot Allocate Memory" Adding Virtual IPv6 Addresses
Apr 30, 2010I get errors trying to virtual IPv6 Addresses i a lab environment. It works fine up to 2033 (?) adrressses, but when I try to add more i get "Cannot allocate memory" error:
# ifconfig eth0 add 2001:1b70:8282:2021:18:0:20:1
SIOCSIFADDR: Cannot allocate memory
This is on Ubuntu Server 9.10 (64-bit).
OpenSUSE Hardware :: ERROR: Bad Logical Partition 6: Enlarged Logical Partitions Overlap
Aug 22, 2011After fixing drive partition numbers, I got the following error from cfdisk: Code: FATAL ERROR: Bad logical partition 6: enlarged logical partitions overlap Press any key to exit cfdisk However, I can see all my partitions with fdisk and gparted, I can mount and use all of them.I used the following guide to fix the drive numbers order: Reorder partition drive numbers in linux | LinkedBits Does somebody know whet is cfdisks problem and how can I fix it?
View 6 Replies View RelatedSoftware :: How To Allocate More Than 2GB Memory For An Application On 32 Bit?
Oct 6, 2010Can anyone tell me is there a way to add more than 2GB memory application in a 32 bit server? I found on many threads that it is not possible to set memory limit of a particular application to more than 2GB. I am using Fedora release 8 and trying to add more than 2GB memory to tomcat. If I modify the variable CATALINA_OPTS in /opt/bobcat/bin/catalina.sh (Startup script of tomcat) and add a value greater than 2GB for memory, tomcat wont start.Is there any work around / Kernel Patches available? Suggestions??
View 10 Replies View RelatedOpenSUSE :: Application To Monitor (CPU / Memory) Performance?
Jun 3, 2011I'm searching a good suse monitoring application. I want to monitor performance(cpu,memory) also process,login to system, I want to run some automatically script when process down, send email.
View 5 Replies View RelatedUbuntu :: Memory Is Not Occupied By Any Application But Not Free
Apr 15, 2010I have a very weird memory issue (as you may have guessed from the title). There's a discrepency between the memory accumulated by the various applications (using "ps -eF" to collect that) and the memory reported by system monitor/"free" Basically, I have around 0.5GB of memory that is not occupied by any application, but is not free as well. (It is not used as cache as well)
[Code].....
Software :: Runtime Memory Usage By A C++ Application?
Jul 23, 2010i have a c++ application that consumes a lot of run time memory. It is a very large project with a lot of sub-modules. My target is to reduce the runtime memory usage as much as possible. Therefore i would like to know if there is a tool that i can use to profile the code (note that i am not interested in checking for memory leaks / corruptions so Valgrind is not for my purpose) I need to know which module has the most static data like large arrays or a lot of variables to know where to start reducing.
View 3 Replies View RelatedCentOS 5 Server :: Determine Memory Consumed By Each Application Running?
Feb 22, 2011What would be the best way to determine memory consumed by each application running on the server?
View 7 Replies View RelatedGeneral :: Generating Two Bash Arguments From 'ls'?
Jul 3, 2011I have a directory containing the following files.
Code:
1-res-opt-I189N-0001.pdb
1-res-opt-I189N-0002.pdb
1-res-opt-I189N-0003.pdb
1-res-opt-I189N-0004.pdb
[code].....
What I want is something like:
Code:
for i in *.pdb
do
python my_script.py 1-res-opt-I189N-00{1..10}.pdb 3-res-opt-I189N-00{1..10}.pdb
done
such that always the two files with corresponding index are submitted together to the Python script. How do I do that?
Programming :: Physical Memory Leaked By User Application Process Is Not Reclaimed Back After Exit?
May 2, 2010Whenever I'm running my application process, I've 1M physical memory usage is increasing for every 2 hours.This I observed using 'free -m' command.But 'top' command did not showing any increase 'RSS' size.It is same as it was started initially.Even though I stopped my process,the increased memory was not released back. If I start my application process then again memory usage start increasing by 1M for every 2 hours. increase of memory usage observer with 'free' and that too when my application is running, but top command is not showing any change in the RSS sizeIf my application is leaking any memory which is allocated by new/malloc, that should be released back whenever my application exit and the size increase will be show through top command for that process, right? This is not happeningThis proves that there is no potential leaks in my process.But why physical memory is increasing when only my process is running?
View 14 Replies View RelatedGeneral :: Generating A White Noise Audio File?
Jan 3, 2011My apt gets noise from outside. I would like to generate a white noise audio file and play it to block outside noise. I would prefer something like the low frequency hum of a big fan. How can I generate this file in using linux tools?
View 14 Replies View RelatedGeneral :: Generating Public And Private Keys Using Putty Key Gen?
Jul 19, 2010Another question though...i have a fedora 12 server set up and i have created 3 sudo users. I have created 3 putty keys (public and private) using putty key gen and basedn my research i was told to put the public keys in /home/"user"/.ssh/authorized_keys .I did that but when i tried to log on using the key...the server is saying "server refused key" could anyone assist in this issue
View 4 Replies View RelatedGeneral :: Generating SSH Key At The Console - What File Needs To Be Copied To Usb Drive
Feb 17, 2011I've been giving the task to go to a Linux console as root. and generate a ssh rsa 4096bit key, and copy the private key to a USB drive.
1) What command should I use here? ssh-keygen -t rsa -b 4096 ?
2) Do I need to append the new private key to the authorized_users file? Which file exactly must be appended there? Would this be sufficient?
mkdir -p /home/myuser/.ssh
cat id_rsa_LOCAL.pub >> /home/myuser/.ssh/authorized_keys
Should any special permissions be applied to this file?
3) Which file must be sent to my usb drive so that I can take it home to connect with?
General :: Ubuntu - Memory Full, Process Memory Usage Doesn't Add Up In Top?
Mar 18, 2011I 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.
View 1 Replies View RelatedGeneral :: Memory Corruption Detected In Low Memory
Aug 22, 2010This is my first post in these forums. I'm still quite new to Linux (using Mint 9) so please bear with my not-very-articulate question(s)When I boot up and open up a tty terminal I get a message saying "Memory corruption detected in low memory." I've done an extensive google search about the issue and it seems not uncommon. I ran a memtest with no errors returned, so I'm sure that there's nothing really wrong with the memory; apparently it's a bug in the kernel that's causing this.
View 2 Replies View RelatedGeneral :: Top Used Memory Versus Ps Processes Memory
Jan 17, 2010I found from command 'top' that 8GB memory are used. However, using command 'ps' with some options to grep the running processes and then summing up the memory used by the running processes are less than 2 GB. Where has the used memory gone ?
View 7 Replies View RelatedGeneral :: Application Called Impact - Paths In Java Application ?
Apr 14, 2010So, I have this application called Impact, it is an explicit time integration Finite Elements code written in Java...
[url]
I untar the pack, and launch the application calling a script, from within the untarred folder,
Code:
This launches a gui which allows me to setup a case, which needs some setup file, tipically some *.in and a mesh file, tipically some *.msh.
Other mode of executuion consists of calling the setup file as argument to Impact.sh script ( CLI execution mode, for g33k5 )
My problem is : I have packed the whole stuff into a Slackware .tgz, that places it in /usr/local/Impact, and placed a calling script in /usr/local/bin,
Code:
Code:
I decided to hack the ImpactGUI_OGL_linux_amd64.sh script from
Code:
Code:
no avail,
Code:
even after adding /usr/local/Impact/bin to PATH... won't go...
I can run this thing from within its directory... but I do not like messing within the directories of my applications, this is why I sent this to /usr/local, and placed a calling script in /usr/local/bin...
General :: Uninstall Grub From Logical Partition
Dec 28, 2010I'm multi-booting with Windows 7 x64 and (at least) Linux Mint. Because I hadn't yet made a backup of my MBR, when I installed Linux Mint on a logical partition, I told the installer to put GRUB on the partition instead of in the MBR. This turned out to be useless, as I need to use GRUB from a boot disk to get into the GRUB I installed. Before installing it in the MBR, I'd like to get it out of the partition, preferably without wiping and reinstalling Linux. I don't relish the prospect of going through two layers of GRUB when I want to boot Linux. How do I get it out, or what other options are available to me?
View 1 Replies View RelatedGeneral :: Cannot Create Logical Partitions Without Errors
Jan 14, 2010I have run into a Gparted problem that I am not familiar with. I've never seen it before.
I cannot create logical partitions without errors or not at all. I have two choices:
1) not checking 'round to cylinders' - I will get an error* and it will not partition
2) check 'round to cylinders' - it will partition but I will also obtain 4MB of unallocated space (each time)
This applies to Primary partitions, too, I think. At least, #2 will happen.
Imho, this is ridiculous. Why would I retain 4MB of unallocated space? In other words, the two choices above are not choices.
The error message doesn't explain much if anything either. *"Unable to satisfy all constraints on the partition"
General :: Encrypting Existing Logical Volumes
Jan 8, 2011How would I go about encrypting my lvm2 logical volumes on Debian Squeeze? Is it possible without backing everything up to a different drive and restoring afterwards?
View 3 Replies View RelatedGeneral :: How To Know Which Logical Volume Owns A File
Jul 14, 2010Hi. We have a cluster consisting of 10 logical volumes all part of one filesystem. Is there a way to know which logical volume owns a certain file/inode? I have tried what is suggested at this link, but the output is the filesystem and not a specific logical volume.
View 6 Replies View RelatedGeneral :: Why Are Logical Partitions Preferred Over Primary
May 9, 2011So I noticed while using guided partitioning that most distro installers will attempt to create a logical partition for the root file system besides the swap and /boot on the HDD. Why is this the case? Why does the partition for root file system have to be logical and not primary?
View 10 Replies View RelatedGeneral :: List Filesystems That Are Using LVM Logical Volumes?
Jun 23, 2011I've read the first 40% of the RHEL 5 Logical Volume Manager Administrator's Guide, but still have one outstanding, burning question.
During the installation of Centos 5.6, I set up LVM physical volumes, volume groups and logical volumes. I can list these using pvdisplay, vgdisplay and lvdisplay commands.
How would I list what filesystems I have that are using my logical volumes?
General :: Implementing Logical Operators In Grep?
Dec 14, 2009How can I implement logical operators in grep? I checked the man info and couldn't figure it out. For example, I'd like to display lines in file1.txt that contains word1 OR word2.
cat file1.txt | grep word1 OR word2