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Linux: Embedded Development by Chris Simmonds, Alex González, Alexandru Vaduva

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Linux real-time applications

Having a real-time operating system may not always be enough for everyone. Some people would also require real-time optimized applications running over the operating system. To make sure an rt-application can be designed and interacted with, the required determinism is necessary on the operating system and hardware. With regard to the hardware configuration, the requirements involve a low-latency interrupt handling. The mechanisms causing the ISR latencies should register values around tens of microseconds.

Regarding the kernel configuration required by real-time applications, the following configurations are necessary:

  • On-demand CPU scaling: Using this configuration helps with the creation of long-latency events when ...

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