This subchapter looks at sysstat, a server package.
Teach Yourself UNIX/Linux System Administration and Shell Programming
table of contents
If you like the idea of this project,
then please donate some money.
more information on donating
This subchapter looks at sysstat, a server package.
sysstat is a server toolset originally created by Sebastien Godard.
Download sysstat from http://pagesperso-orange.fr/sebastien.godard/download.html.
The most famous tools ar iostat, pidstat, and sar.
iostat reports CPU statistics and input/output statistics for devices, partitions and network filesystems.
mpstat reports individual or combined processor related statistics.
pidstar reports statistics for Linux tasks (processes) : I/O, CPU, memory, etc.
sar collects, reports and saves system activity information (CPU, memory, disks, interrupts, network interfaces, TTY, kernel tables,etc.)
sadc is the system activity data collector, used as a backend for sar.
sa1 collects and stores binary data in the system activity daily data file. It is a front end to sadc designed to be run from cron.
sa2 writes a summarized daily activity report. It is a front end to sar designed to be run from cron.
sadf displays data collected by sar in multiple formats (CSV, XML, etc.) This is useful to load performance data into a database, or import them in a spreadsheet to make graphs.
nfsiostat reports input/output statistics for network filesystems (NFS).
cifsiostat reports CIFS statistics.
Coding example: I am making heavily documented and explained open source code for a method to play music for free — almost any song, no subscription fees, no download costs, no advertisements, all completely legal. This is done by building a front-end to YouTube (which checks the copyright permissions for you).
View music player in action: www.musicinpublic.com/.
Create your own copy from the original source code/ (presented for learning programming).
return to table of contents
free downloadable college text book
free downloadable system administrator and shell programming book
Because I no longer have the computer and software to make PDFs, the book is available as an HTML file, which you can convert into a PDF.
Teach Yourself UNIX/Linux System Administration and Shell Programming
Building a free downloadable text book on computer programming for university, college, community college, and high school classes in computer programming.
If you like the idea of this project,
then please donate some money.
send donations to:
Milo
PO Box 1361
Tustin, California 92781
Supporting the entire project:
If you have a business or organization that can support the entire cost of this project, please contact Pr Ntr Kmt (my church)
Some or all of the material on this web page appears in the
free downloadable college text book on computer programming.
This web site handcrafted on Macintosh computers using Tom Bender’s Tex-Edit Plus and served using FreeBSD .
†UNIX used as a generic term unless specifically used as a trademark (such as in the phrase “UNIX certified”). UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company Ltd.
Names and logos of various OSs are trademarks of their respective owners.
Copyright © 2012 Milo
Created: July 12, 2012
Last Updated: July 12, 2012
return to table of contents
free downloadable college text book
free downloadable system administrator and shell programming book
