Shielded Processors: Guaranteeing Sub-millisecond Response in Standard Linux

Authors:
Steve Brosky;Steve Rotolo
Affiliations:
-;-
Venue:
IPDPS '03 Proceedings of the 17th International Symposium on Parallel and Distributed Processing
Year:
2003

Citing 0
Cited 4

Real-time systems for multi-processor architectures

IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
An overview of interrupt accounting techniques for multiprocessor real-time systems

Journal of Systems Architecture: the EUROMICRO Journal
Asymmetric scheduling and load balancing for real-time on linux SMP

PPAM'05 Proceedings of the 6th international conference on Parallel Processing and Applied Mathematics
Evaluation of a high-volume, low-latency market data processing system implemented with IBM middleware

Software—Practice & Experience

Quantified Score

Hi-index	0.00

Visualization

Abstract

The low latency and preemption patches provide significant progress making standard Linux into a more responsive system for real-time applications. These patches allow guarantees on worst case interrupt response time at slightly above a millisecond. However, these guarantees can only be met when there is no networking or graphics activity in the system. This paper will describe the implementation of shielded processors in RedHawk Linux and their benefits. It will also present the results of real-time performance benchmarks. Interrupt response time guarantees are significantly below one millisecond and can be guaranteed even in the presence of networking and graphics activity.