2026-07-24T03:28:35Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:22988 2025-10-02T12:23:15Z ddc:004 open_access

Low-Latency Real-Time Applications on Heterogeneous MPSoCs Coppik, Nicolas Becker, Pascal Ritter, Marcus real-time systems heterogeneous systems latency inter-core communication Heterogeneous Multi-Processor Systems-on-Chip (MPSoCs) that combine multiple, heterogeneous processing units are becoming increasingly popular for a wide range of applications, including industrial applications, where complex real-time applications can benefit from the performance and flexibility they offer. However, deploying real-time applications with low latency requirements across multiple processing units on such MPSoCs remains a challenging problem, particularly when communication between processors is required on a time-critical path. Existing solutions generally rely on the presence of at least one full-featured, general-purpose operating system on the device, and do not cater to the requirements of distributed, low-latency real-time applications. In this paper, we investigate the performance, with a focus on latency, of different options for communication between CPUs, including inter-processor interrupts and shared memory communication via different memories, on the popular Xilinx Zynq UltraScale+ platform and propose a novel solution for communication between heterogeneous processing units that relies only on the availability of shared memory. Our solution is capable of achieving sub-microsecond latencies for signaling and the transfer of small amounts of data between processing units, making it suitable for deploying distributed, low-latency real-time applications. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Nicolas Coppik and Pascal Becker and Marcus Ritter 2025 Is Part Of OASIcs, Volume 128, Sixth Workshop on Next Generation Real-Time Embedded Systems (NG-RES 2025) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/OASIcs.NG-RES.2025.2 urn:nbn:de:0030-drops-229883 https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.NG-RES.2025.2 eng https://creativecommons.org/licenses/by/4.0/legalcode