2012 Fiscal Year Final Research Report
Dual OS architecture for reliable multiprocessor embedded system.
| Project/Area Number |
23700035
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Software
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| Research Institution | Nagoya University |
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Principal Investigator |
HONDA Shinya 名古屋大学, 情報科学研究科, 准教授 (20402406)
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| Project Period (FY) |
2011 – 2012
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| Keywords | オペレーティングシステム |
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| Research Abstract |
SafeG-MP is a virtualization environment that allows a real-time operating system (RTOS) to run concurrently with a general-purpose operating (GPOS) on a multi-core embedded system. SafeG-MP schedules the workload of each core between both OSs independently. When both Oss are ready to run on a certain core, the RTOS is executed with higher priority. Unfortunately, such scheduling algorithm has performance issues on the GPOS: an increased synchronization delay, and a load imbalance among cores.We propose a technique to address both issues. We implemented and evaluated it on a physical platform, confirming its effectiveness at mitigating the GPOS performance loss.
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