In this article, which appears in the “Crossroads” publication of the Association for Computing Machinery (ACM), Kevin Fu presents a fascinating interview with Victor Yodaiken. Yodaiken is the principal architect of RTLinux, a popular real-time version of Linux. In the interview, Yodaiken defines and discusses the requirements of real-time performance, and describes the methods and mechanisms that were… used to add real-time capabilities to Linux. Essentially, Yodaiken explains, RTLinux splits the application into two parts: “the part that is really realtime, and the part that just needs to run fast.”

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