10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all
I was wondering if its possible to write a script to keep CPU usage at 90%-95%? for a single cpu linux server?
I have a perl script I run on servers with multple cpu's and all I do is max all but one cpu to get into the 90'% utilised area. I now need a script that raises the CPU to... (4 Replies)
Discussion started by: sudobash
4 Replies
2. Shell Programming and Scripting
I am looking for a way to log and graphically display cpu and RAM usage of linux processes over time. Since I couldn't find a simple tool to so (I tried zabbix and munin but installation failed) I started writing a shell script to do so
The script file parses the output of top command through... (2 Replies)
Discussion started by: andy_dufresne
2 Replies
3. Linux
Hi All,
Yesterday my Linux server went panic and even a small command took a lot of time to run.
When i monitored pl find the below output
Cpu(s): 0.1%us, 98.4%sy, 0.0%ni, 1.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
the time spent on kernel mode is 98 % and also idle time is around 1.5 %...... (4 Replies)
Discussion started by: jegaraman
4 Replies
4. AIX
Hello,
Looking for some help. I am trying to gather data at each server showing when the physical CPU is being used the most based on a weekly timeframe.
I know this data can be seen through NMON but with multiple servers in our environment it could take a real long time. is there a easier... (4 Replies)
Discussion started by: audis$
4 Replies
5. Shell Programming and Scripting
Can any one please let me know the shell script to change the password for a particular user on multiple linux servers. (2 Replies)
Discussion started by: s_madras
2 Replies
6. UNIX for Advanced & Expert Users
Hi,
How to find the cpu configuration details of Cores, Speed MHz, virtual processors for the following servers:
LINUX OS Servers:
Linux 2.6.9-89.0.3.ELsmp #1 SMP Sat Jun 13 07:05:54 EDT 2009 i686 i686 i386 GNU/Linux. (Cores, Speed, Processor)
Linux 2.6.18-164.el5 #1 SMP Tue Aug 18... (5 Replies)
Discussion started by: jagtheesh
5 Replies
7. Ubuntu
I am running a Dell PE R815 with 4 x AMD 12 core CPUs with 128GB of RAM and a RAID 5 array of 6 SAS disks. This is an HPC application and is definitely CPU bound, however once I run 16 of these processes (thus pinning 16 cores) the work performed slows down dramatically, to maybe 5 or 10% of what... (2 Replies)
Discussion started by: mowmentous
2 Replies
8. Solaris
Hello Friends,
On one of my Solaris 10 box, CPU usage shows 100% using "sar", "vmstat". However, it has 4 CPUs and prstat and glance are not showing enough processes to justify high CPU utilization.
=========================================================================
$ prstat -a
... (4 Replies)
Discussion started by: mahive
4 Replies
9. HP-UX
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Discussion started by: alert0919
3 Replies
10. UNIX and Linux Applications
There is a file system in server1 which is mounted on different file system on server2.
Filesystem kbytes used avail capacity Mounted on
server1:/users/user1
7047581 5994192 982914 86% /u01
/data/datafiles/user1
The data in... (1 Reply)
Discussion started by: vamshikrishnab
1 Replies
PREFIX(1) General Commands Manual PREFIX(1)
NAME
prefix - Script that allows you to reconfigure environment variables for multiple installations of a set of software installed on the same
machine
SYNOPSIS
prefix
DESCRIPTION
It is assumed that the software for each installation is all under a single directory whose name is assigned to an environment variable
called PREFIX.
This arrangement of enabling multiple installations of software on a single machine is useful at many times. On a single server, it can
provide for development, test, and production installations of software. Alternatively, on development servers, it allows for multiple
development "sandboxes", one for each developer. On production servers, it allows for multiple versions of the production software to be
installed. One might be the currently running software, one the previous software kept online as a fall-back, and one a new release of
software wich is scheduled to be brought online soon.
There are three usages of the prefix script:
(1) The interactive usage should be placed as the last line
of a user's ".profile". The user must be running the
Korn shell (ksh) or the Bourne Again shell (bash).
The user is prompted to enter one of the known PREFIX locations,
specified in the $HOME/.prefixes file or the /etc/prefixes file.
During configuration, the $PREFIX/.prefixrc file is sourced
in order to accomplish environment-specific configurations.
(2) The non-interactive user configuration does not consult
$HOME/.prefixes or /etc/prefixes or prompt the user, but merely
configures the environment in accordance with the cmd line argument.
(3) The batch command usage is mainly for running commands from
cron or running commands in another environment without changing
to that environment.
Usage (1): . prefix (sets up environment)
(2): . prefix <prefix> (non-interactive setup)
(3): prefix <prefix> <cmd> <args> (runs cmd configured for PREFIX)
This manual page was written for the Debian distribution because the original program does not have a manual page.
AUTHOR
Prefix was written by Stephen Adkins <spadkins@gmail.com>, and is part of the App-Options distribution.
This manual page was written by Jotam Jr. Trejo <jotamjr@debian.org.sv>, for the Debian systems (but may be used by others).
Oct 07, 2010 PREFIX(1)
