Solved

High Data Block wait time

Posted on 2006-06-21
6
812 Views
Last Modified: 2008-02-01
I have extremely high data block wait time....

block   73821695
wait      4835256

The script I ran for this is:

select   CLASS,
         COUNT,
         TIME
from     sys.v_$waitstat
order by CLASS;

We are experiencing very bad performance.

Help?

Mike
0
Comment
Question by:mjimison1956
  • 3
  • 2
6 Comments
 
LVL 3

Expert Comment

by:Titan522
ID: 16952027
What version are you running?
0
 

Author Comment

by:mjimison1956
ID: 16953036
version is Oracle 9.2.0.7
0
 
LVL 3

Accepted Solution

by:
Titan522 earned 250 total points
ID: 16954690
Are these problems new or been around for a long time? Any increase in users or large amount of data being added or removed?
0
Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

 

Author Comment

by:mjimison1956
ID: 16955167
Have been around, new to the db....  performance has been getting worse and worse.  
0
 
LVL 3

Expert Comment

by:Titan522
ID: 16955187
Sounds like you have out of date stats or are doing a large number of full table scans. Would get some commonly run queries and see what the explain plan is.
0
 
LVL 3

Expert Comment

by:cdemir
ID: 16962919
how about initORA?
0

Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

I guess that all of us know that caching the data usually increase the performance, but I worried if all of us are aware about the risk that caching the data provides and how to minimize this.  That’s the reason why I decided to write this short art…
CCModeler offers a way to enter basic information like entities, attributes and relationships and export them as yEd or erviz diagram. It also can import existing Access or SQL Server tables with relationships.
Video by: Steve
Using examples as well as descriptions, step through each of the common simple join types, explaining differences in syntax, differences in expected outputs and showing how the queries run along with the actual outputs based upon a simple set of dem…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

778 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question