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Title: Implementing hybrid operating systems with two-level hardware interrupts
Authors: Liu, M
Shao, Z 
Wang, M
Wei, H
Wang, T
Keywords: Linux
Operating systems (computers)
Real-time systems
Issue Date: 2007
Publisher: IEEE
Source: 28th IEEE International Real-Time Systems Symposium, 2007 : RTSS 2007, 3-6 December 2007, Tucson, AZ, p. 244-253 How to cite?
Abstract: In this paper, we propose to implement hybrid operating systems based on two-level hardware interrupts. To separate real-time and non-real-time hardware interrupts by hardware, we show that it is easier to build up hybrid systems with better performance. We analyze and discuss the key issues for implementing a hybrid system based on this and implement a hybrid system called RTLinux-THIN (Real-Time LINUX with Two-level Hardware Interrupts) on the ARM architecture by combining ARM Linux kernel 2.6.9 and muC/OS-II. We conduct experiments on a set of real application programs including mplayer [20], Bonnie [4] and iperf [13] and compare the interrupt latency distributions for RTLinux-THIN (with and without cache locking), RTAI and Linux on a hardware platform based on Intel PXA270processor [12]. The experimental results show that RTLinux-THIN improves real-time interrupt latencies and provides better predictability.
ISBN: 978-0-7695-3062-8
ISSN: 1052-8725
DOI: 10.1109/RTSS.2007.10
Appears in Collections:Conference Paper

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