2026-07-25T11:56:02Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:13933 2024-03-12T11:59:55Z ddc:004 open_access

A Memory Scheduling Infrastructure for Multi-Core Systems with Re-Programmable Logic Hoornaert, Denis Roozkhosh, Shahin Mancuso, Renato Memory Scheduling PLIM FPGA Memory Management Bandwidth Regulation MemGuard Coloring Bank Partitioning Real-time Multicore Safety-critical The sharp increase in demand for performance has prompted an explosion in the complexity of modern multi-core embedded systems. This has lead to unprecedented temporal unpredictability concerns in Cyber-Physical Systems (CPS). On-chip integration of programmable logic (PL) alongside a conventional Processing System (PS) in modern Systems-on-Chip (SoC) establishes a genuine compromise between specialization, performance, and reconfigurability. In addition to typical use-cases, it has been shown that the PL can be used to observe, manipulate, and ultimately manage memory traffic generated by a traditional multi-core processor. This paper explores the possibility of PL-aided memory scheduling by proposing a Scheduler In-the-Middle (SchIM). We demonstrate that the SchIM enables transaction-level control over the main memory traffic generated by a set of embedded cores. Focusing on extensibility and reconfigurability, we put forward a SchIM design covering two main objectives. First, to provide a safe playground to test innovative memory scheduling mechanisms; and second, to establish a transition path from software-based memory regulation to provably correct hardware-enforced memory scheduling. We evaluate our design through a full-system implementation on a commercial PS-PL platform using synthetic and real-world benchmarks. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Denis Hoornaert and Shahin Roozkhosh and Renato Mancuso 2021 Is Part Of LIPIcs, Volume 196, 33rd Euromicro Conference on Real-Time Systems (ECRTS 2021) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/LIPIcs.ECRTS.2021.2 urn:nbn:de:0030-drops-139331 https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECRTS.2021.2 eng https://creativecommons.org/licenses/by/4.0/legalcode