scholarly journals What to Make of Multicore Processors for Reliable Real-Time Systems?

2010 ◽  
pp. 1-18 ◽  
Author(s):  
Theodore P. Baker
Keyword(s):  
Real Time ◽  
Multicore Processors ◽  
Real Time Systems ◽  
Time Systems

Real-Time Systems Development with RTEMS and Multicore Processors

2020 ◽  
Author(s):  
Gedare Bloom ◽  
Joel Sherrill ◽  
Tingting Hu ◽  
Ivan Cibrario Bertolotti
Keyword(s):  
Real Time ◽  
Multicore Processors ◽  
Systems Development ◽  
Real Time Systems ◽  
Time Systems

Synchronization Analysis for Hard Real-Time Multicore Systems

2012 ◽  
Vol 241-244 ◽  
pp. 2246-2252
Author(s):  
Mao Lin Yang ◽  
Hang Lei ◽  
Yong Liao ◽  
Lin Hui Hu
Keyword(s):  
Real Time ◽  
Multicore Processors ◽  
Real Time Systems ◽  
Response Time Analysis ◽  
Time Analysis ◽  
Priority Inversion ◽  
Simulation Results ◽  
Hard Real Time ◽  
Local Interference ◽  
Time Systems

Multicore processors are increasingly used in real-time embedded systems. Better utilization of hard real-time systems requires accurate scheduling and synchronization analysis. In this paper, we characterize the major synchronization penalties arising from partitioned fixed priority scheduling for hard real-time tasks on multicore platform, including transitive remote preemption, multiple remote blocking, and multiple priority inversions. Subsequently, we propose a new response time analysis by improving the approach to bound task blocking time. The key idea of this approach is to classify the total blocking time into (i) direct blocking, including local and remote blocking, and transitive remote preemption; and (ii) multiple local interference which is incurred by multiple priority inversion. Simulation results indicate that the proposed approach produces less pessimistic results in task blocking time, and better schedulability performance.

scholarly journals Dynamic Priority Real-Time Scheduling on Power Asymmetric Multicore Processors

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1488
Author(s):  
Basharat Mahmood ◽  
Naveed Ahmad ◽  
Majid Iqbal Khan ◽  
Adnan Akhunzada
Keyword(s):  
Real Time ◽  
Power Efficiency ◽  
Multicore Processors ◽  
Real Time Systems ◽  
Real Time Scheduling ◽  
Dynamic Priority ◽  
Time Scheduling ◽  
Asymmetric Multicore Processors ◽  
Asymmetric Multicore ◽  
Time Systems

The use of real-time systems is growing at an increasing rate. This raises the power efficiency as the main challenge for system designers. Power asymmetric multicore processors provide a power-efficient platform for building complex real-time systems. The utilization of this efficient platform can be further enhanced by adopting proficient scheduling policies. Unfortunately, the research on real-time scheduling of power asymmetric multicore processors is in its infancy. In this research, we have addressed this problem and added new results. We have proposed a dynamic-priority semi-partitioned algorithm named: Earliest-Deadline First with C=D Task Splitting (EDFwC=D-TS) for scheduling real-time applications on power asymmetric multicore processors. EDFwC=D-TS outclasses its counterparts in terms of system utilization. The simulation results show that EDFwC=D-TS schedules up to 67% more tasks with heavy workloads. Furthermore, it improves the processor utilization up to 11% and on average uses 14% less cores to schedule the given workload.

scholarly journals An Energy-Efficient Task Scheduling for Near Real-Time Systems on Heterogeneous Multicore Processors

2020 ◽  
Vol E103.D (2) ◽  
pp. 329-338
Author(s):  
Takashi NAKADA ◽  
Hiroyuki YANAGIHASHI ◽  
Kunimaro IMAI ◽  
Hiroshi UEKI ◽  
Takashi TSUCHIYA ◽  
...  
Keyword(s):  
Real Time ◽  
Task Scheduling ◽  
Energy Efficient ◽  
Multicore Processors ◽  
Real Time Systems ◽  
Heterogeneous Multicore ◽  
Time Systems

Software Engineering for Real Time Systems

IEE Review ◽  
1992 ◽  
Vol 38 (3) ◽  
pp. 112
Author(s):  
Stuart Bennett
Keyword(s):  
Software Engineering ◽  
Real Time ◽  
Real Time Systems ◽  
Time Systems

Generic Round Robin Scheduling for Real Time Systems

2017 ◽  
Vol 7 (5) ◽  
pp. 148-155
Author(s):  
Pallab Banerjee ◽  
◽  
Riya Shree ◽  
Richa Kumari Verma ◽  
◽  
...  
Keyword(s):  
Real Time ◽  
Round Robin ◽  
Real Time Systems ◽  
Time Systems
Sign in / Sign up

Export Citation Format

Share Document