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Real-time programming with Linux, part 2: configuring Linux for real-time - Shuhao's Blog

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In the last post, I went over the definition of real-time (RT) and listed a few sources of latency. I noted that applications with a latency requirement of less than about 10 milliseconds likely need special handling of the hardware and operating system configurations, as well as the application code. I mentioned that I will write a small program this post to demonstrate this. However, this won't be the case, as a lot more setup is needed before a program can be written. Thus, this post will only cover the setup of a computer running Linux with the real-time patch, as well as showing a quick example of identifying a source of latency via ftrace. The code will come in the next episode. When writing a RT application, the application must let the operating system (OS) know that it needs real-time capabilities by setting configurations such as the process scheduling policy and priority. This must be done through an OS-level API, as the application and OS must cooperate to achieve such low

Real-time programming with Linux, part 2: configuring Linux for real-time - Shuhao's Blog Real-time programming with Linux, part 2: configuring Linux for real-time By Shuhao Wu on 2022-04-11 Real-time programming with Linux : Part 1 - Part 2 - Part 3 - Part 4 In the last post , I went over the definition of real-time (RT) and listed a few sources of latency. I noted that applications with a latency requirement of less than about 10 milliseconds likely need special handling of the hardware and operating system configurations, as well as the application code. I mentioned that I will write a smal

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