[2] Eindhoven Univ Technol TU E, Eindhoven, Netherlands
[3] Max Planck Inst Software Syst MPI SWS, Saarbrucken, Germany
来源:
2020 IEEE 41ST REAL-TIME SYSTEMS SYMPOSIUM (RTSS)
|
2020年
关键词:
real-time systems;
response-time analysis;
shared resources;
global multiprocessor scheduling;
D O I:
10.1109/RTSS49844.2020.00021
中图分类号:
TP [自动化技术、计算机技术];
学科分类号:
0812 ;
摘要:
Motivated by the lack of response-time analyses for non-preemptive global scheduling that consider shared resources, this paper provides such an analysis for global job-level fixed-priority (JLFP) scheduling policies and FIFO-ordered spin locks. The proposed analysis computes response-time bounds for a set of resource-sharing jobs subject to release jitter and execution-time uncertainties by implicitly exploring all possible execution scenarios using state-abstraction and state-pruning techniques. A large-scale empirical evaluation of the proposed analysis shows it to be substantially less pessimistic than simple execution-time inflation methods, thanks to the explicit modeling of contention for shared resources and scenario-aware blocking analysis.