STM Concurrency Control for Embedded Real-Time Software with Tighter Time Bounds

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Provided by: Association for Computing Machinery
Topic: Storage
Format: PDF
The authors consider Software Transactional Memory (STM) concurrency control for multicore real-time software, and present a novel Contention Manager (CM) for resolving transactional conflicts, called Length-based CM (LCM). They upper bound transactional retries and response times under LCM, when used with G-EDF and G- RMA schedulers. They identify the conditions under which LCM outperforms previous real-time STM CMs and lock-free synchronization. Their implementation and experimental studies reveal that G-EDF/LCM and G-RMA/LCM have shorter or comparable retry costs and response times than other synchronization techniques.
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