Title :
Reducing OS overhead for real-time industrial controllers with adjustable timer resolution
Author :
Park, Tae Rim ; Park, Jae Hyun ; Kwon, Wook Hyun
Author_Institution :
Control Inf. Syst. Lab., Seoul Nat. Univ., South Korea
Abstract :
In this paper, a new method, named adjustable timer resolution (ATR) is proposed to control tasks in a timely manner, with enhanced performance on real-time operating systems. It prevents useless execution of the timer interrupt service routine (ISR). Features of the proposed method are compared with the conventional method, and the schedulability is analyzed to estimate the performance. As an implementation model, uC/OS-II is modified and ported to a power PC processor system. The metrics and results of the model are presented and discussed
Keywords :
controllers; industrial control; operating systems (computers); real-time systems; OS overhead reduction; adjustable timer resolution; enhanced performance; power PC processor system; real-time industrial controllers; real-time operating systems; tasks control; timer interrupt service routine; Communication system control; Control systems; Embedded system; Industrial control; Operating systems; Performance analysis; Power system modeling; Processor scheduling; Real time systems; Time factors;
Conference_Titel :
Industrial Electronics, 2001. Proceedings. ISIE 2001. IEEE International Symposium on
Conference_Location :
Pusan
Print_ISBN :
0-7803-7090-2
DOI :
10.1109/ISIE.2001.931816
