Predictable Interrupt Management and Scheduling in the Composite Component-Based System

Parmer, Gabriel; West, Richard

doi:10.1109/rtss.2008.13

Cited by 31 publications

(13 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, such a connection is revealed out at the last phase of the packet processing. Hence, early demuxing techniques [2,3] are used to acquire such connection information earlier than the packet processing.…”

Section: A Early Demuxingmentioning

confidence: 99%

Priority-Based Network Interrupt Scheduling for Predictable Real-Time Support

Lee¹,

Kim²,

Shin³

2015

Journal of Computing Science and Engineering

View full text Add to dashboard Cite

Interrupt handling is generally separated from process scheduling. This can lead to a scheduling anomaly and priority inversion. The processor can interrupt a higher priority process that is currently executing, in order to handle a network packet reception interruption on behalf of its intended lower priority receiver process. We propose a new network interrupt handling scheme that combines interrupt handling with process scheduling and the priority of the process. The proposed scheme employs techniques to identify the intended receiver process of an incoming packet at an earlier phase. We implement a prototype system of the proposed scheme on Linux 2.6, and our experiment results show that the prototype system supports the predictable real-time behavior of higher priority processes even when excessive traffic is sent to lower priority processes.

show abstract

Section: A Early Demuxingmentioning

confidence: 99%

Priority-Based Network Interrupt Scheduling for Predictable Real-Time Support

Lee¹,

Kim²,

Shin³

2015

Journal of Computing Science and Engineering

View full text Add to dashboard Cite

show abstract

“…Liu et al [2010] propose a hardware scheme for supporting the combination of real-time and non-real-time interrupts. Parmer and West [2008] implement a two-level interrupts handling scheme in which the handling is deferred to upcalls in the user space. The upcalls are scheduled with a hierarchic and configurable scheme.…”

Section: Related Workmentioning

confidence: 99%

Integrated Task and Interrupt Management for Real-Time Systems

Leyva-del-Foyo

Mejía-Álvarez

Niz

2012

ACM Trans. Embed. Comput. Syst.

View full text Add to dashboard Cite

Real-time scheduling algorithms like RMA or EDF and their corresponding schedulability test have proven to be powerful tools for developing predictable real-time systems. However, the traditional interrupt management model presents multiple inconsistencies that break the assumptions of many of the real-time scheduling tests, diminishing its utility. In this article, we analyze these inconsistencies and present a model that resolves them by integrating interrupts and tasks in a single scheduling model. We then use the RMA theory to calculate the cost of the model and analyze the circumstances under which it can provide the most value. This model was implemented in a kernel module. The portability of the design of our module is discussed in terms of its independence from both the hardware and the kernel. We also discuss the implementation issues of the model over conventional PC hardware, along with its cost and novel optimizations for reducing the overhead. Finally, we present our experimental evaluation to show evidence of its temporal determinism and overhead.

show abstract

“…In contrast to existing systems, we are considering memory protection techniques based on fine-grained fault-isolation around software components. Ideas similar to those in our prototype work on Composite [17], which uses Mutable Protection Domains (MPDs) [16] are being considered for safety in Quest.…”

Section: The Quest Operating Systemmentioning

confidence: 99%