Reduce Overhead of Eviction to Disk

Reduce the memory overhead of tables, as well as the performance overhead.

Reduce the memory overhead of tables. Some applications may benefit from evicting rows to disk in order to reduce heap space. However, enabling eviction also increases the per-row overhead that SQLFire requires to perform LRU eviction for the table. As a general rule, table eviction is only helpful for conserving memory if the non-primary key columns in a table are large: 100 bytes or more.

Reduce the performance overhead of eviction to disk:

See How LRU Eviction Works.