Why Postgres wants NVMe on the hot path, and S3 everywhere else
8 hours ago
- #Postgres
- #Performance
- #Storage
- Postgres requires low-latency NVMe storage for the hot path, such as transaction commits and small reads, to maintain performance and user-visible response times.
- S3 is ideal for cold storage tasks like WAL archiving, backups, snapshots, and analytics due to its durability, cost-effectiveness, and scalability, but it introduces high latency unsuitable for transactional workloads.
- Separating NVMe for hot operations and S3 for cold data avoids performance bottlenecks, allowing Postgres to excel in OLTP while leveraging object storage for archival and analytical purposes.