Oracle-L: Slow running jobs

From: Brooks, Russ <Russ.Brooks_at_dayzim.com>
Date: Tue, 11 Mar 2003 08:34:22 -0800
Message-ID: <F001.0056628D.20030311083422@fatcity.com>

Hi,
We're having slow response on some batch jobs in our production system. A straight SQL trace shows intermittant slow response times on selects against a variety of tables. What is odd is:

the statistics are current for the tables, frequently the results of a compute.
The same cursor with different bind variables will randomly vary from 200 microseconds to 3.6 seconds, randomly.
This occurs on multiple tables in multiple tablespaces.

What is this normally indicative of?

The other thing I did was run a 10046 level 8 trace for about 20 seconds. I saw 22 log file sync's in that period in the trace file.

Any thoughts welcome.

Russ

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Author: Brooks, Russ
INET: Russ.Brooks_at_dayzim.com

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