int DatabaseGrowthSize { set; }

configures the size database files should grow in bytes, when no free slot is found within.

Tuning setting.

Whenever no free slot of sufficient length can be found within the current database file, the database file's length is extended. This configuration setting configures by how much it should be extended, in bytes.

This configuration setting is intended to reduce fragmentation. Higher values will produce bigger database files and less fragmentation.

To extend the database file, a single byte array is created and written to the end of the file in one write operation. Be aware that a high setting will require allocating memory for this byte array.