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Servicios de tiempo real en el sistema operativo Android

Authors: Pérez Ruiz, Alejandro; Aldea Rivas, Mario; González Harbour, Michael;

Servicios de tiempo real en el sistema operativo Android

Abstract

Debido a la gran expansión y crecimiento de Android el interés por utilizar este sistema operativo en entornos de tiempo real es cada vez mayor. En este trabajo se describen una serie de mecanismos proporcionados por el siste-ma operativo Android/Linux mediante los cuales es posible aislar uno o más núcleos de un multiprocesador simétrico para ser utilizados exclusivamente por tareas con requisitos temporales. Gracias a los mecanismos de aislamiento, la tasa de interferencias sufridas por las tareas con requisitos temporales respecto a otras tareas o aplicaciones que se ejecutan en el sistema operativo es muy baja. Un segundo aspecto en el que se mejora el comportamiento de tiempo real del sistema operativo Android está relacionado con las limitaciones para tiempo real de la librería bionic (modificación de glibc para Android). Para solventar estas limitaciones se ha utilizado la librería glibc incluida en la distribución es-tándar de Linux. Se han realizado una serie de tests que demuestran que la libre-ría tradicional funciona correctamente en Android. Asimismo se ha llevado a cabo la caracterización temporal de Android/glibc para las funciones más rele-vantes de POSIX para tiempo real observándose que la respuesta temporal del sistema es apropiada para aplicaciones de tiempo real laxo.

Este trabajo ha sido financiado parcialmente por el Gobierno de España con referencia TIN2014-56158-C4-2-P (M2C2) y por el programa de becas predoctorales de la Universidad de Cantabria.

Country
Spain
Related Organizations
Keywords

Multinúcleo, Android, Tiempo Real, Sistemas Operativos, Inteligencia artificial

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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