tailieunhanh - Báo cáo hóa học: " Research Article Hard Real-Time Performances in Multiprocessor-Embedded Systems Using ASMP-Linux"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Hard Real-Time Performances in Multiprocessor-Embedded Systems Using ASMP-Linux | Hindawi Publishing Corporation EURASIP Journal on Embedded Systems Volume 2008 Article ID 582648 16 pages doi 2008 582648 Research Article Hard Real-Time Performances in Multiprocessor-Embedded Systems Using ASMP-Linux Emiliano Betti 1 Daniel Pierre Bovet 1 Marco Cesati 1 and Roberto Gioiosa1 2 1 System Programming Research Group Department of Computer Science Systems and Production University of Rome Tor Vergata Via del Politecnico 1 00133 Rome Italy 2 Computer Architecture Group Computer Science Division Barcelona Supercomputing Center BSC c Jordi Girona 31 08034 Barcelona Spain Correspondence should be addressed to Roberto Gioiosa gioiosa@ Received 30 March 2007 Accepted 15 August 2007 Recommended by Ismael Ripoll Multiprocessor systems especially those based on multicore or multithreaded processors and new operating system architectures can satisfy the ever increasing computational requirements of embedded systems. ASMP-LINUX is a modified high responsiveness open-source hard real-time operating system for multiprocessor systems capable of providing high real-time performance while maintaining the code simple and not impacting on the performances of the rest of the system. Moreover ASMP-LINUX does not require code changing or application recompiling relinking. In orderto assess the performances of ASMP-LINUX benchmarks have been performed on several hardware platforms and configurations. Copyright 2008 Emiliano Betti et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION This article describes a modified Linux kernel called ASMP-Linux ASymmetric MultiProcessor Linux that can be used in embedded systems with hard real-time requirements. ASMP-Linux provides real-time capabilities while maintaining the software architecture relatively simple. In a conventional .