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Implementing Hybrid Operating Systems with Two-Level Hardware Interrupts

9 years 7 months ago
Implementing Hybrid Operating Systems with Two-Level Hardware Interrupts
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 C/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 PXA270 processor [12]. The experimental results show that RTLinux-THIN improves real-time interrupt latencies and provides better predictability.
Miao Liu, Zili Shao, Meng Wang, Hongxing Wei, Tian
Added 04 Jun 2010
Updated 04 Jun 2010
Type Conference
Year 2007
Where RTSS
Authors Miao Liu, Zili Shao, Meng Wang, Hongxing Wei, Tianmiao Wang
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