Dual Management of Real-Time and Interactive Jobs in Smartphones

Eunji LEE  Youngsun KIM  Hyokyung BAHN  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E97-D   No.2   pp.323-325
Publication Date: 2014/02/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.E97.D.323
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Software System
Keyword: 
real-time job,  smartphone,  NVRAM,  scheduling,  

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Summary: 
A dual management of real-time and interactive jobs in dual-core smartphones is presented. The proposed scheme guarantees the end-to-end QoS of real-time applications, while also provides reasonable latency for interactive applications. To this end, high performance NVRAM is adopted as storage of real-time applications, and a dual purpose CPU scheduler, in which one core is exclusively used for real-time applications, is proposed. Experiments show that the proposed scheme reduces the deadline miss ratio of real-time applications by 92%.