Linux Server Load

Server Load Issuses..

Using Top:

• Use the -n flag to limit the number of iterations:

    top -n 1

• Check out the system and the process monitor form atconsultancy.nl

    Download ATOP from http://www.atconsultancy.nl/atop/download.html

• ps - report a snapshot of the current processes.

   ps       will show your the current users running process.
   ps -f    will show full list of users currently running process
   ps -ef   will show full list of all process expect kernel process
   ps -A    all process including the kernel process
   ps -Kf   will show full listing of kernel process
   ps auxw  Wide listing sorted by percentage of CPU usage and %CPU

• simple selection ********* ********* selection by list *********

  -A all processes                      -C by command name
  -N negate selection                   -G by real group ID (supports names)
  -a all w/ tty except session leaders  -U by real user ID (supports names)
  -d all except session leaders         -g by session OR by effective group name
  -e all processes                      -p by process ID
   T  all processes on this terminal     -s processes in the sessions given
   a  all w/ tty, including other users  -t by tty
   g  OBSOLETE -- DO NOT USE             -u by effective user ID (supports names)
   r  only running processes             U  processes for specified users
   x  processes w/o controlling ttys     t  by tty

• References..

    http://people.redhat.com/alikins/system_tuning.html

• Debian Administration Utilities

     http://www.debianhelp.co.uk/adminutilities.htm

• monit is a utility for managing and monitoring, processes, files, directories and devices on a UNIX system.

      http://www.tildeslash.com/monit/

• Network Monitoring Tools

      http://www.slac.stanford.edu/xorg/nmtf/nmtf-tools.html

• Cacti is a complete network graphing solution.

     http://www.cacti.net/