One needs to keep in mind that Waits are the symptoms, and not a problem.
- Kirti
-----Original Message-----
Sent: Monday, April 22, 2002 12:13 PM
To: Multiple recipients of list ORACLE-L
I don't think anyone who reads the original YAPP
paper will miss this. If I recall correctly, one of
it's opening statements is the classic formula:
response time = service time plus wait time.
My own mantra puts in rather less scientific terms:
If you have a performance problem, either your database
is working too hard, or it's not being allowed to work.
Jonathan Lewis
http://www.jlcomp.demon.co.uk
Author of:
Practical Oracle 8i: Building Efficient Databases
Next Seminar - Australia - July/August
http://www.jlcomp.demon.co.uk/seminar.html
Host to The Co-Operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html
-----Original Message-----
|
|Aside: In the migration to wait-based tuning, don't forget that even
waits
|alone don't cover everything. Service time is the other significant
|component.
|
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Author: Deshpande, Kirti
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