Should I resize the value of LOG_BUFFER parameter to a larger one?

Should I resize the value of LOG_BUFFER parameter to a larger one?
The transaction of the application is invoking the job once every 5 seconds. The action is inserting more than 14MB of data into 3 tables.
The current LOG_BUFFER value is 14MB (Oracle default).

qck wrote:
Should I resize the value of LOG_BUFFER parameter to a larger one?
The transaction of the application is invoking the job once every 5 seconds. The action is inserting more than 14MB of data into 3 tables.
The current LOG_BUFFER value is 14MB (Oracle default).As you may have guessed, your description doesn't suggest that you've noticed a good reason for increasing the size of the log_buffer - although the size of the transaction suggests that you may see some effects.
The symptom you need to watch out for is time lost on "log buffer space". If sessions executing this transaction s are eporting a significant amount of time on this event, then you could reduce that by increasing the log_buffer (32MB is the next size to try). However, you may already be seeing other sessions losing time on "log file sync" waits - and if this time loss is significant it would be a clue that you should NOT increase the size of the log buffer.
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk
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