Implementation of Multiprocessing and Multithreading for End Node Middleware Control on Internet of Things Devices

  • Iwan Kurnianto Wibowo Program Studi Teknik Komputer, Politeknik Elektronika Negeri Surabaya
  • Adnan Rachmat Anom Besari Program Studi Teknik Komputer, Politeknik Elektronika Negeri Surabaya
  • Muh. Rifqi Rizqullah Program Studi Teknik Komputer, Politeknik Elektronika Negeri Surabaya
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Keywords: Raspberry Pi, Internet of Things, Multiprocessing, Multithreading, Middleware, Educational robot

Abstract

Previously, an educational robot system was built by incorporating Internet of Things (IoT) elements. Over time, this educational robot has been implanted with a middleware. Middleware has a role in receiving command data from the real-time database, access sensors, actuators, and sending feedback. Middleware contains protocols that translate commands between high-level programming and Raspberry Pi hardware. The focus of this research is to improve the performance of the middleware to pursue processing time efficiency. For this reason, it is necessary to implement multiprocessing and multithreading in handling several tasks. The division of tasks on the CPU has been adjusted automatically to not work on just one core or block of memory. Several program functions can run in parallel and reduce program execution time efficiently. The tasks handled are sensor reading and actuator control in the form of a motor. Testing has been carried out to perform multiprocessing and multithreading tasks to process six sensors and five actuators. Multiprocessing requires an average of 1.00% to 15.00% CPU usage and 2.70% memory usage. Meanwhile, multithreading involves an average of 1.00% to 71.00% CPU usage and 3.30% memory usage.

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