Chapter 3: How IRIX(TM) and REACT/Pro(TM) Support RealTime Programs

Some of the features mentioned here are discussed in more detail in the following chapters of this guide. For details on other features, you are referred to reference pages or to other manuals. The main topics surveyed are

• "Kernel Facilities for Real-Time Programs," including special scheduling disciplines, isolated CPUs, and locked memory pages

• "REACT/Pro Frame Scheduler," which takes care of the details of scheduling multiple processes on multiple CPUs at guaranteed rates

• "Interprocess Communication," reviewing the ways that a concurrent, multiprocess program can coordinate its work

• "Timers and Clocks," reviewing your options for time-stamping and interval timing

• "Interchassis Communication," reviewing two ways of connecting multiple chassis

Kernel Facilities for Real-Time Programs

REACT/Pro Frame Scheduler

Interprocess Communication

Timers and Clocks

Interchassis Communication