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RT-Bench is a framework and community project that aims to establish a unified set of benchmarks with a homogeneous launch and result reporting interface, and with a simple build system. RT-Bench targets academic researchers and industry practitioners interested in understanding the performance characteristics of embedded/real-time systems when tested over realistic use-case applications. To facilitate real-time systems research, RT-Bench is designed from the ground up to include a set of fundamental capabilities such as periodic execution, selectable OS scheduler, and native and multi-architecture performance counters support, to name a few. RT-Bench has undergone continuous improvements and extensions. This paper reviews the most recent additions and features of the framework. Most prominently, these include heap migration, synchronized benchmark release, and experimental support for multi-threaded applications. This contribution includes a tutorial session with template benchmarks to showcase the new features and illustrate the process of integrating new benchmark suites.
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RT-Bench: an Extensible Benchmark Framework for the Analysis and Management of Real-Time Applications
Benchmarking is crucial for testing and validating any system, including—and perhaps especially—real-time systems. Typical real-time applications adhere to well-understood abstractions: they exhibit a periodic behavior, operate on a well-defined working set, and strive for stable response time, avoiding non-predicable factors such as page faults. Unfortunately, available benchmark suites fail to reflect key characteristics of real-time applications. Practitioners and researchers must resort to either benchmark heavily approximated real-time environments or re-engineer available benchmarks to add—if possible—the sought-after features. Additionally, the measuring and logging capabilities provided by most benchmark suites are not tailored “out-of-the-box” to real-time environments, and changing basic parameters such as the scheduling policy often becomes a tiring and error-prone exercise. In this paper, we present RT-bench, an open-source framework adding standard real-time features to virtually any existing benchmark. Furthermore, RT-bench provides an easy-to-use, unified command-line interface to customize key aspects of the real-time execution of a set of benchmarks. Our framework is guided by four main criteria: 1) cohesive interface, 2) support for periodic application behavior and deadline semantics, 3) controllable memory footprint, and 4) extensibility and portability. We have integrated within the framework applications from the widely used SD-VBS and IsolBench suites. We showcase a set of use-cases that are representative of typical real-time system evaluation scenarios, and that can be easily conducted via RT-Bench.
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- Award ID(s):
- 2008799
- PAR ID:
- 10332457
- Date Published:
- Journal Name:
- Proceedings of the 30th International Conference on Real-Time Networks and Systems (RTNS 2022)
- Page Range / eLocation ID:
- 184 to 195
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Conference Paper:
- https://doi.org/10.1145/3534879.3534888
