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Syst."],"published-print":{"date-parts":[[2010,2]]},"abstract":"<jats:p>We consider lock-free synchronization for dynamic embedded real-time systems that are subject to resource overloads and arbitrary activity arrivals. We model activity arrival behaviors using the unimodal arbitrary arrival model (or UAM). UAM embodies a stronger \u201cadversary\u201d than most traditional arrival models. We derive an upper bound on lock-free retries under the UAM with utility accrual scheduling\u2014the first such result. We establish the tradeoffs between lock-free and lock-based sharing under UAM. These include conditions under which activities' accrued timeliness utility is greater under lock-free than lock-based, and the consequent lower and upper bound on the total accrued utility that is possible with lock-free and lock-based sharing. We confirm our analytical results with a POSIX RTOS implementation.<\/jats:p>","DOI":"10.1145\/1698772.1698781","type":"journal-article","created":{"date-parts":[[2010,3,2]],"date-time":"2010-03-02T19:20:32Z","timestamp":1267557632000},"page":"1-28","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Lock-free synchronization for dynamic embedded real-time systems"],"prefix":"10.1145","volume":"9","author":[{"given":"Hyeonjoong","family":"Cho","sequence":"first","affiliation":[{"name":"Korea University, South Korea"}]},{"given":"Binoy","family":"Ravindran","sequence":"additional","affiliation":[{"name":"Virginia Polytechnic Institute and State University, Blacksburg, VA"}]},{"given":"E. 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Srinivasan A. Anderson J. and Baruah S. 2004. A categorization of real-time multiprocessor scheduling problems and algorithms. In Handbook of Scheduling: Algorithms Models and Performance Analysis J. Y. Leung Ed. Chapman and Hall\/CRC Boca Raton FL 30--1--30--19."},{"volume-title":"Proceedings of the 10th Euromicro Workshop on Real-Time Systems. 2--9.","author":"Chen J.","key":"e_1_2_1_6_1"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1109\/ECRTS.2005.5"},{"volume":"1586","volume-title":"Proceedings of the IEEE Workshop on Parallel and Distributed Real-Time Systems (WPDRTS). Lecture Notes in Computer Science","author":"Clark R.","key":"e_1_2_1_8_1"},{"volume-title":"Proceedings of the IEEE Workshop on Parallel and Distributed Real-Time Systems (WPDRTS). 122b.","author":"Clark R. 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