This event occurs while the session is writing physical blocks to all control files. This happens when:
The session starts a control file transaction (to ensure the control files are up to date in case the session crashes before committing the control file transaction)
The session commits a transaction to a control file
Changing a generic entry in the control file, the new value is being written to all control files
Wait Time: The wait time is the time it takes to finish all writes to all control files
Parameter | Description |
---|---|
files |
The number of control files to which the session is writing |
blocks |
The number of blocks that the session is writing to the control file |
requests |
The number of I/O requests which the session wants to write |