Supporting time-sensitive applications on a commodity OS
ACM SIGOPS Operating Systems Review - OSDI '02: Proceedings of the 5th symposium on Operating systems design and implementation
Blocking-aware processor voltage scheduling for real-time tasks
ACM Transactions on Embedded Computing Systems (TECS)
Supporting time-sensitive applications on a commodity OS
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Evaluation of interrupt handling timeliness in real-time Linux operating systems
ACM SIGOPS Operating Systems Review
Standard Linux for embedded real-time robotics and manufacturing control systems
Robotics and Computer-Integrated Manufacturing
ACM Transactions on Embedded Computing Systems (TECS)
Experimental evaluation of the linux RT patch for real-time applications
ETFA'09 Proceedings of the 14th IEEE international conference on Emerging technologies & factory automation
Transparent and selective real-time interrupt services for performance improvement
SEUS'07 Proceedings of the 5th IFIP WG 10.2 international conference on Software technologies for embedded and ubiquitous systems
Composition kernel: a software solution for constructing a multi-OS embedded system
EURASIP Journal on Embedded Systems
Design issues in composition kernels for highly functional embedded systems
Proceedings of the 2011 ACM Symposium on Applied Computing
Non-blocking garbage collection for real-time Android
Proceedings of the 11th International Workshop on Java Technologies for Real-time and Embedded Systems
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This paper presents an experimental study of the latency behavior of the Linux OS. We identify major sources of latency in the kernel with the goal of providing real-time performance in a widely used general-purpose operating system. We quantify each source of latency with a series of micro-benchmarks and also evaluate the effects of latency on a time-sensitive application. Our analysis shows that there are two main causes of latency in the OS: timer resolution and non-preemptable sections. Our experiments show that in the standard Linux kernel the timer resolution latency is predominant, and generally hides the non-preemptablesection latency. We use accurate timers to reduce timer resolution latency and then analyze the non-preemptable section latency for several variants of Linux.