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Specifies how many journal pages should be written before a checkpoint is inserted. The default value is DB_DEF_CHECKPOINT_INTERVAL. All modifications to the database are recorded in a journal to facilitate recovery. Checkpoints are periodically inserted into the journal to improve recovery performance and allow old journal entries to be deleted. Inserting a checkpoint requires a small extra time overhead. A high checkpoint interval will slightly increase the average speed of database operations. A low checkpoint interval will save storage space by preventing the journal from becoming excessively large. A low checkpoint interval also ensures faster recovery if the application crashes.
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