Reliability is a major concern in multiprocessors. Dynamic Reliability Management (DRM) aims at trading off processor performance with lifetime. The state-of-the-art publications study only the theory supported by simulation. This paper presents the first complete software implementation, working on a real hardware, of a low-overhead, Android-compatible workload-aware DRM Governor for mobile multiprocessors. We discuss the design challenges and the run-time overhead involved. We show the effectiveness of our governor in guaranteeing the predefined target lifetime and show that it achieves up to 100% of lifetime improvement with respect to traditional governors, while providing comparable performance for critical applications.
Mercati P.; Bartolini A.; Paterna F.; Rosing T.S.; Benini L.; A Linux-governor based Dynamic Reliability Manager for android mobile devices, in Design, Automation and Test in Europe Conference and Exhibition (DATE), 2014, Dresden, 24-28 March 2014, Page(s): 1-4, DOI: 10.7873/DATE.2014.117, 2014 IEEE