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Debugging multi-task real-time VxWorks applications is tedious and time-consuming for developers. The non-determinism within the application execution makes the developers hard to reproduce a failure.1As a result, the developers cannot perform cyclic debugging easily on these real-time applications. Replay debugging techniques can help developers to replay the failure scenario with determinism. In...
Multi-core virtualization platform is an essential basement of modern computing environment including server consolidation and cloud computing. However hidden contention for physical resources between different workloads always causes serious performance interference and thus reduces system performance and efficiency. In order to address this issue, we exploit the possibility of scheduling virtual...
Aimed at the needs for scheduling real-time tasks in the environment of open real-time system and embedded system, a scheduling mechanism based on messages has been suggested and applied on the Xen virtual machine, and a Multi-Real-Time-Task model based on VCPU is established. Influence on the real-time scheduling is analyzed and solutions will be given. Experiment results prove that scheduling based...
As a packet is distributed along its path in a wormhole network-on-chip (NoC), the individual link schedulers can hardly fulfill packet-based allocation without synchronization, to achieve lower average latency than flit-based one does. Reverse anchored round-robin (RARR) is proposed as hybrid of flit and packet based schemes. The unique highest-priority fragment is reserved as anchor at each link...
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