Call now: 252-767-6166  
Oracle Training Oracle Support Development Oracle Apps

 
 Home
 E-mail Us
 Oracle Articles
New Oracle Articles


 Oracle Training
 Oracle Tips

 Oracle Forum
 Class Catalog


 Remote DBA
 Oracle Tuning
 Emergency 911
 RAC Support
 Apps Support
 Analysis
 Design
 Implementation
 Oracle Support


 SQL Tuning
 Security

 Oracle UNIX
 Oracle Linux
 Monitoring
 Remote s
upport
 Remote plans
 Remote
services
 Application Server

 Applications
 Oracle Forms
 Oracle Portal
 App Upgrades
 SQL Server
 Oracle Concepts
 Software Support

 Remote S
upport  
 Development  

 Implementation


 Consulting Staff
 Consulting Prices
 Help Wanted!

 


 Oracle Posters
 Oracle Books

 Oracle Scripts
 Ion
 Excel-DB  

Don Burleson Blog 


 

 

 


 

 

 
 

Inside Oracle Wait Time Tuning

Oracle Tips by Burleson Consulting
Don Burleson
(June 2005)

There has been a lot of discussion about Oracle wait event tuning, especially with the new Active Session History (ASH) in Oracle10g.  Wait Time based analysis is a highly accurate performance tuning method, but it is often a tedious, reactive process requiring lots of manual steps and significant knowledge.  There are several books on Oracle wait event tuning. This is my personal favorite:
 
 
Even though Oracle has promoted the new ASH data and incorporated it into the 10g Oracle Enterprise Manager, many people do not realize that access to ASH data requires additional Oracle licensing for the Oracle Diagnostic Pack:
 
 
There are several third-party products that compete with Oracle ASH. My favorite being the DBFlash tool from Confio, which I like because it combines detailed Wait Time analysis for Oracle with a proactive, continuous monitoring approach.  There is no need to run traces, and with DBFlash you can see the Wait Time accumulation for each SQL, and set Alerts to notify you when Waits on chosen users, programs, or SQLs gets excessive.  I also liked the trending tools, showing 5 years of Wait event data without taking up a lot of storage space.   Check it out or get an evaluation from http://www.confio.com/ora2.
 
There is no doubt that the future of Oracle tuning lies in trend-based analysis, as I have noted in my Oracle Press STATSPACK books and my newest book "Oracle Tuning:  Time Series Optimization with the Automatic Workload Repository", where I compare the features of DBFlash with OEM:
 


 

 

��  
 
 
Oracle Training at Sea
 
 
 
 
oracle dba poster
 

 
Follow us on Twitter 
 
Oracle performance tuning software 
 
Oracle Linux poster
 
 
 

 

Burleson is the American Team

Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

and include the URL for the page.


                    









Burleson Consulting

The Oracle of Database Support

Oracle Performance Tuning

Remote DBA Services


 

Copyright © 1996 -  2017

All rights reserved by Burleson

Oracle ® is the registered trademark of Oracle Corporation.

Remote Emergency Support provided by Conversational