Real-Time Operating System

Here are some high-level notes about the architecture of the real-time operating system:

• We build the full Linux kernel for K-Scale OS using our own extensions to Buildroot
• The main control loop is implemented as a daemon process that runs at boot, using the SCHED_RR scheduling class
• We enable PREEMPT_RT to ensure that we can meet our hard real-time requirements
• The control loop itself is implemented in Rust, which exposes an gRPC interface over HTTP for communicating with other components
  • We implement a Python API for interacting with the HTTP server from userspace, allowing users to upload Klang programs