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Home -> Community -> Mailing Lists -> Oracle-L -> 10g Automatic Checkpoint Tuning
Guys,
The following are the top-4 waits after CPU Time in my AWR reports during a batch window.
log file switch (checkpoint incomplete)
free buffer waits
log file switch (private strand flush incomplete)
log file parallel write
Just realized that log switches are happening very frequent.. each log member is 300M and 3 groups. this size seems to be okay.. other database has 100M member and the same batch job runs good there. First wait says, checkpoint incomplete.. I have started looking at checkpoint tuning.. I have uncommented the following parameters
Automatic Checkpoint Tuning in 10g: 265831.1 REDO LOGS SIZING ADVISORY: 274264.1
-- http://www.freelists.org/webpage/oracle-lReceived on Mon Jun 25 2007 - 16:09:44 CDT
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