Both these Wait Events are I/O-related so they are likely to appear together with 'log file parallel write' if there is I/O contention on the redo logs. Follow the same guidelines for tuning them.
More LGWR I/O-related Wait Events, tune as before.
This Wait Event occurs when checkpointing activities are not occurring quickly enough.
For guidelines on tuning checkpoint operations please refer to:
These Wait Events occur when archiving is enabled and indicate that archiving is not performing fast enough.
For guidelines on tuning archiving operations please refer to:
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