Application Performance on AIX Box Post: 302298591

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Operating Systems AIX Application Performance on AIX Box Post 302298591 by shockneck on Wednesday 18th of March 2009 03:59:47 AM

03-18-2009

Registered User

Quote:

Originally Posted by Neo

You can install Zabbix, which is free and open source to monitor AIX performance.

There are many other ways, of course, We use Zabbix to monitor the performance of this site.

I believe there are some thousend freeware tools that monitor some sort of performance. Unfortunately most of those monitors are not aware of AIX and not aware of pSeries hardware. Hence they will fail to monitor more than the basics. Especially when it comes to RSCT and Kernel those tools often are not up to the job. Things might get worse when you have to compile the monitor yourself. That all is unfortunate but at the same time unneccessary. As an AIX admin you'd probably use one of the monitors from the IBM wiki: IBM developerWorks: Wikis - AIX - Performance Other Tools

A very fast and easy montoring can be set up with nmon. It can collect perf data into a file that can be analysed with the nmon analyser. So to set up monitoring on a standalone server in two steps you'd
1. Install nmon on target.
2. Call nmon from crontab :

Code:

1 0 * * * nmon -F $(date +\%d\%m\%Y).nmon -I 0.001 -s 300 -c 288 -m /<datatarget_directory>

You are done. This will collect a 24 hour period of performance data with a five minute intervall into a file every day.
Two more hints for using nmon
- Nmon uses public API hence no need to run it as root.
- If nmon stops writing into the file there might be an error with the device that is being queried. In that case either remove the error or prevent nmon from querying that device (by commandline option).

@OP: You are right: to find out if/how the new app affects performance of your system you need to know what the load was before the new app was installed. So for comparison you need to uninstall the app, monitor, then install the app and monitor again. However if monitoring with the app reveals that performance is still ok you might simply leave it.

Last edited by shockneck; 03-19-2009 at 09:47 AM.. Reason: pimped crontab entry

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LEARN ABOUT CENTOS

monitor

MONITOR(8)						      System Manager's Manual							MONITOR(8)

NAME

       monitor - Directory Server script for monitoring database performance

SYNOPSIS

       monitor [ -Z serverID ] [ -D rootdn ] [ -w password ] [ -b basedn ] [-P protocol] [-h]

DESCRIPTION

       Retrieves performance monitoring information. To run this script, the server must be running.

OPTIONS

       A summary of options is included below:

       -Z Server Identifier
	      The server ID of the Directory Server instance.  If there is only one instance on the system, this option can be skipped.

       -D Root DN
	      The Directory Manager DN, or root DN.  If not specified, the script will search the server instance configuration for the value.

       -w password
	      The rootdn password.

       -b basedn
	      The DN of a backend from cn=config.

       -P Protocol
	      The  connection  protocol  to  connect  to the Directory Server.	Protocols are STARTTLS, LDAPS, LDAPI, and LDAP.  If this option is
	      skipped, the most secure protocol that is available is used.  For LDAPI, AUTOBIND is also available for the root user.

       -h
	      Display the usage.

EXAMPLE

       monitor -P STARTTLS

	      Note: security must be enabled to use protocol STARTTLS.	If STARTTLS is not available it will default to  next  strongest/available
	      protocol automatically.

       monitor -Z instance2 -D 'cn=directory manager' -w password -b 'cn=monitor,cn=userRoot,cn=ldbm database,cn=plugins,cn=config'

	      Note: You only need to bind as the root DN if you want to look at a backend monitor.

DIAGNOSTICS

       Exit status is zero if no errors occur.	Errors result in a non-zero exit status and a diagnostic message being written to standard error.

AUTHOR

       monitor was written by the 389 Project.

REPORTING BUGS

       Report bugs to http://bugzilla.redhat.com.

COPYRIGHT

       Copyright (C) 2013 Red Hat, Inc.

								    Mar 5, 2013 							MONITOR(8)