Ed - Have you looked at Oracle's Database Resource Manager feature? It may
have had another name in 8i. The idea is that if you can segregate the
queries and let Oracle allocate the resources, a lot more can be done, in
theory, than the O.S. scheduler can.
Dennis Williams
DBA
Lifetouch, Inc.
[EMAIL PROTECTED]
-----Original Message-----
Sent: Tuesday, August 27, 2002 3:18 PM
To: Multiple recipients of list ORACLE-L
Hi,
I'm looking for a way to control CPU usage of
particular queries on a database.
After exploring, and implementing ways of optimizing the code,
these queries can run anywhere from 45 seconds
to 2 minutes.
This database is 1 of 5 on this box. So, although it's important
to build effective queries, it's also important in this
environment that these queries do not impact the other
4 databases.
What I want to do is place a limit on CPU usage
without terminating the query. I've looked at profiles
with the "cpu_per_call" and "cpu_per_session" settings.
I have never used profiles, but from what I understand,
these will kill the session once they reach a threshold.
I'm also looking at database resource management.
This may be more appropriate for this situation.
Has anyone used this, and if so what are you
experiences ? Would you recommend it ?
Would the only way to control CPU usage on this
box, be through the operating system ?
I welcome any suggestions. I appreciate your time.
The environment is Oracle 8.1.7.2, AIX 4.3.3.
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Author: DENNIS WILLIAMS
INET: [EMAIL PROTECTED]
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