Benchmark: MongoDB 8 vs FerretDB 1.8 for MongoDB-Compatible Workloads on Azure Cobalt 100 MongoDB-compatible databases are increasingly popular for teams needing document store flexibility without vendor lock-in. This benchmark compares the latest MongoDB 8 release against FerretDB 1.8, the open-source MongoDB-compatible proxy that uses PostgreSQL as a storage backend, running on Azure’s Cobalt 100 ARM-based virtual machines. Background: Key Components Azure Cobalt 100 Azure Cobalt 100 is Microsoft’s custom ARM64 processor designed for cloud-native workloads, offering up to 128 vCPUs, 512GB of RAM, and integrated accelerators for networking and encryption. For this benchmark, we used Standard_DC100ds_v3 instances with 16 vCPUs, 64GB RAM, and 1TB Premium SSD storage. MongoDB 8 Released in Q3 2024, MongoDB 8 introduces performance improvements for time-series data, enhanced query optimization, and reduced memory overhead for large collections.…