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2003
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Feedback Control Real-Time Scheduling in ORB Middleware

10 years 8 months ago
Feedback Control Real-Time Scheduling in ORB Middleware
Existing real-time ORB middleware standards such as RT-CORBA do not adequately address the challenges of 1) providing robust performance guarantees portably across different platforms, and 2) managing unpredictable workload. To overcome this limitation, we have developed software called FCS/nORB that integrates a Feedback Control real-time Scheduling (FCS) service with the nORB small-footprint realtime ORB designed for networked embedded systems. FCS/nORB features feedback control loops that provide real-time performance guarantees by automatically adjusting the rate of remote method invocations transparently to an application. FCS/nORB thus enables real-time applications to be truly portable in terms of real-time performance as well as functionality, without the need for hand tuning. This paper presents the design, implementation, and evaluation of FCS/nORB. Our extensive experiments on a Linux testbed demonstrate that FCS can provide deadline miss ratio and utilization guarantees in...
Chenyang Lu, Xiaorui Wang, Christopher D. Gill
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where RTAS
Authors Chenyang Lu, Xiaorui Wang, Christopher D. Gill
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