Tag
context-switching
- Apr 6, 2026 Threads, Scheduler Activations and the Failed Promise of User-Level Scheduling How user-level threads multiplex onto kernel threads, what scheduler activations promised in exchange for replacing the kernel scheduler, and why the mechanism was displaced by kernel-managed blocking without ever being implemented widely. computing history
- Aug 21, 2025 What the Hardware Does Between an Interrupt and Its Handler The stacked frame, the link register value that redirects the return, and the chaining shortcuts that make back-to-back interrupts cheap. embedded systems