Hardware/software Codesign -hs 15 11.1 Modular Performance Analysis with Real-time Calculus – Modeling and Analysis of Systems
نویسنده
چکیده
11.1.a) Event Streams Consider a task T where jobs arrive with a period 10, a maximum jitter 15, a minimum inter-arrival distance 2, and have an execution time of 1. Consider a specific trace of these jobs which arrive at times 0, 10, 18, 21, 33, 40, 55, 65, 75, 90, 100, 120. Plot the input arrival function (or the input event stream) R(t) using the commands rtccurve and rtcplot. Now plot the arrival curve α of this task using the commands rtcpjd and rtcplot. Extract and plot only the upper-arrival curve α. Test if the arrival times of the jobs used to construct R(t) conform to the specification of the upper-arrival curve α. Hint: Use the rtcmindeconv operator which is defined as follows
منابع مشابه
An Improved Modular Modeling for Analysis of Closed-Cycle Absorption Cooling Systems
A detailed modular modeling of an absorbent cooling system is presented in this paper. The model including the key components is described in terms of design parameters, inputs, control variables, and outputs. The model is used to simulate the operating conditions for estimating the behavior of individual components and system performance, and to conduct a sensitivity analysis based on the give...
متن کاملDesign Process and Tools for the HW/SW-Codesign and Rapid-Prototyping of Parallel and Heterogeneous Real-Time Communication Systems1
Based on the methodology for the development of communication systems, a framework for early performance evaluation and hardware/software codesign of such systems is presented. We describe how performance requirements can be formulated in a formal way during the analysis phase of a project and how these requirements are used by the synthesis tools for hardware/software codesign during the desig...
متن کاملDesign Process and Tools for the HW/SW-Codesign and Rapid-Prototyping of Parallel and Heterogeneous Real-Time Communication Systems
Based on the methodology for the development of communication systems, a framework for early performance evaluation and hardware/software codesign of such systems is presented. We describe how performance requirements can be formulated in a formal way during the analysis phase of a project and how these requirements are used by the synthesis tools for hardware/software codesign during the desig...
متن کاملA Feature-based Approach to Embedded System Hardware and Software Co-design
Correspnding author, Email: [email protected] ABSTRACT An embedded system is a hybrid of hardware and softwarethat combines software flexibility and hardware real-time performance. The co-design of hardware and software is the most critical but difficult issue in embedded system design. In this paper, we propose a novel feature-based approach to the codesign of hardware and software in embedded ...
متن کاملAnalysis and Improvement of Task Schedulability in Hardware/software Codesign Analysis and Improvement of Task Schedulability in Hardware/software Codesign
Many real-time systems have timing requirements that are diicult to fulll if the system is implemented by software running on a microprocessor. One way to remedy this problem is to implement the most time-critical parts in application-speciic integrated circuits instead. Hardware/software codesign aims at providing support for the designer of such a heterogeneously implemented system, and espec...
متن کامل