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Emulating soft real-time scheduling using traditional operating system schedulers 利用传统的操作系统调度程序仿真软实时调度
1994 Proceedings Real-Time Systems Symposium Pub Date : 1994-05-01 DOI: 10.1109/REAL.1994.342704
Brad Adelberg, H. Garcia-Molina, B. Kao
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引用次数: 60
Guaranteeing end-to-end timing constraints by calibrating intermediate processes 通过校准中间过程来保证端到端的时间约束
1994 Proceedings Real-Time Systems Symposium Pub Date : 1994-05-01 DOI: 10.1109/REAL.1994.342716
R. Gerber, Seongsoo Hong, M. Saksena
{"title":"Guaranteeing end-to-end timing constraints by calibrating intermediate processes","authors":"R. Gerber, Seongsoo Hong, M. Saksena","doi":"10.1109/REAL.1994.342716","DOIUrl":"https://doi.org/10.1109/REAL.1994.342716","url":null,"abstract":"Presents a comprehensive design methodology for guaranteeing end-to-end requirements of real-time systems. Applications are structured as a set of process components connected by asynchronous channels, in which the endpoints are the system's external inputs and outputs. Timing constraints are then postulated between these inputs and outputs, they express properties such as end-to-end propagation delay, temporal input-sampling correlation, and allowable separation times between updated output values. The automated design method works as follows. First the end-to-end requirements are transformed into a set of intermediate rate constraints on the tasks, and new tasks are created to correlate related inputs. The intermediate constraints are then solved by an optimization algorithm, whose objective is to minimize CPU utilization. If the algorithm fails, a restructuring tool attempts to eliminate bottlenecks by transforming the application, which is then re-submitted into the assignment algorithm. The final result is a schedulable set of fully periodic tasks, which collaboratively maintain the end-to-end constraints.<<ETX>>","PeriodicalId":374952,"journal":{"name":"1994 Proceedings Real-Time Systems Symposium","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122908490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 117
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