Abstract
Modern Cyber–physical Systems (CPS) include applications like smart traffic, smart agriculture, smart power grid, etc. Commonly, these systems are distributed and composed of end-user applications and microservices that typically run in the cloud. The connection with the physical world, which is inherent to CPS, brings the need to operate and respond in real-time. As the cloud becomes part of the computation loop, the real-time requirements have to be also reflected by the cloud. In this paper, we present an approach that provides soft real-time guarantees on the response time of services running in cloud and edge–cloud (i.e., cloud geographically close to the end-user), where these services are developed in high-level programming languages. In particular, we elaborate a method that allows us to predict the upper bound of the response time of a service when sharing the same computer with other services. Importantly, as our approach focuses on minimizing the impact on the developer of such services, it does not require any special programming model nor limits usage of common libraries, etc.
Original language | English |
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Article number | 110872 |
Pages (from-to) | 1-15 |
Number of pages | 15 |
Journal | Journal of Systems and Software |
Volume | 172 |
Early online date | 23 Nov 2020 |
DOIs | |
Publication status | Published - Feb 2021 |
Funding
The research leading to these results has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No 783162 , where the method has been adapted and applied for processing video workloads. Also, it has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No 783221 , where the method has been adapted and applied for processing farming related workloads. Additionally, this work was partially supported by Charles University institutional funding SVV 260451 .
Funders | Funder number |
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Univerzita Karlova v Praze | SVV 260451 |
Horizon 2020 Framework Programme | 783162 |
Electronic Components and Systems for European Leadership | 783221 |
Keywords
- Cyber–physical systems
- edge–cloud
- Guaranteed latency