Abstract
In this paper, we address the problem of improving the performance of real-time embedded Multiprocessor System-on-Chip (MPSoC). Such MPSoCs often execute applications composed of multiple tasks. The tasks on each processor are scheduled by a Real-Time Operating System (RTOS) instance. To improve performance, we reduce the Worst Case Execution Time (WCET) of the RTOS by new processor-coprocessor execution models using reconfigurable hardware. Furthermore, we integrate the proposed contributions on an MPSoC platform, where the processor-coprocessor execution models are applied on three reconfigurable coprocessors - Hardware Task-Status Manager (HWTSM), Thread Interrupt State Controller (TISC), and Remote Slack Manager (RSM). As a case study, we investigate the HWTSM, which determines the execution eligibility of tasks. The experimental results suggest overall system improvement up to 13.3% with the help of the HWTSM. Moreover, the TISC can boost further the performance and RSM can significantly reduce the energy consumption.
Original language | English |
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Pages (from-to) | 89-105 |
Number of pages | 17 |
Journal | Computers and Electrical Engineering |
Volume | 53 |
DOIs | |
Publication status | Published - 1 Jul 2016 |
Keywords
- FIFO communication
- Hardware task-status manager
- Inter-tile remote slack information Distribution framework
- Molen
- Multiprocessor platform
- Processor–coprocessor execution model
- RTOS
- Thread interrupt state controller