[$] Deadline scheduling part 1 — overview and theory

The deadline scheduler enables the user to specify a realtime task'srequirements using well-defined realtime abstractions, allowing the system to makethe best scheduling decisions, guaranteeing the scheduling of realtimetasks even in higher-load systems.This article, the first in a series of two, provides an introduction torealtime scheduling (deadline scheduling in particular) and some of the theory behind it.