Presentation
APP: enabling soft real-time execution on densely-populated hybrid memory systems
DescriptionMemory swapping was considered slow and evil, but swapping to Ultra Low-Latency storage like Optane has become a promising solution to save power and cost, helping densely-populated edge server to overcome its DRAM capacity bottleneck. However, the lack of integration between CPU scheduling and memory paging causes soft real-time tasks running on edge servers to miss deadlines under heavy memory multiplexing. We propose APP (Adaptive Page Pinning), lightweight protection of working set memory to ensure meeting soft real-time task deadlines without starving other non-real-time tasks. Experiments show that APP alleviates thrashing in memory-intensive tasks and upholds soft real-time task deadlines.
Event Type
Research Manuscript
TimeThursday, July 13th4:10pm - 4:25pm PDT
Location3004, 3rd Floor
Cloud
Design
Design of Cyber-physical Systems and IoT