Improving Predictability of Transaction Execution Times in Real-time Databases

摘要

We present a design for multi-version concurrency control and recovery in a main memory database, and describe logical and physical versioning schemes that allow read-only transactions to execute without obtaining data item locks or system latches. Our schemes enable a system to provide the guarantee that updaters will never interfere with read-only transactions, and read-only transactions will not be delayed due to data contention.