Checkpoint
If the transaction log was never truncated, all the changes that happened to your memory-optimized tables could be reconstructed from the transactions recorded in the log. However, this is not a feasible approach as the recovery time would be unacceptably long. Just as for operations on disk-based tables, one of the main reasons for checkpoint operations is to reduce recovery time. For In-Memory OLTP, the checkpoint process for memory-optimized tables is designed to satisfy two important requirements.
Continuous Checkpointing—Checkpoint operations occur incrementally and continuously as transactional activity accumulates. A background ...
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