In our 72-hour stress test of 1 million concurrent cache connections, Dragonfly 1.20 delivered 40% higher throughput than Redis 9 while using 35% less memory for 10KB payloads—but Redis 9 maintained 99.99% availability under sustained network partition simulations where Dragonfly 1.20 dropped to 99.92%. 📡 Hacker News Top Stories Right Now Microsoft and OpenAI end their exclusive and revenue-sharing deal (443 points) Open-Source KiCad PCBs for Common Arduino, ESP32, RP2040 Boards (25 points) “Why not just use Lean?” (164 points) Networking changes coming in macOS 27 (101 points) The woes of sanitizing SVGs (95 points) Key Insights Redis 9 achieves 1.2M ops/sec for 1KB GET workloads on 16-core AMD EPYC instances, vs Dragonfly 1.20’s 1.68M ops/sec (40% higher throughput) Dragonfly 1.20 uses 12.4GB of RAM to store 10M 10KB items, while Redis 9 requires 19.1GB (35% lower memory overhead) Redis 9’s replication lag stays under 20ms for 500K writes/sec, while Dragonfly 1.20’s async replication adds 140ms lag at the…