Machine Heart

Sep 23, 2026 · Backend Development

DeepSeek DSec: Scaling Sandbox Infrastructure to 380K Concurrent Agents

DeepSeek's new paper introduces DSec, a production sandbox infrastructure that manages 300 million daily sandbox instances with 380,000 concurrent at peak, using on-demand image loading, composable layers, memory sharing, and CPU QoS to support large-scale agentic reinforcement learning training.