Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Homology priority task scheduling in μC/OS-II real-time kernel. |
| Συγγραφείς: |
Wang, Xibo, Zhou, Benhai, Yu, Ge, Li, Qian |
| Πηγή: |
Wuhan University Journal of Natural Sciences; Sep2007, Vol. 12 Issue 5, p946-950, 5p |
| Περίληψη: |
μC/OS-II is an open source real-time kernel adopting priority preemptive schedule strategy. Aiming at the problem of μC/OS-II failing to support homology priority tasks scheduling, an approach for solution is proposed. The basic idea is adding round-robin scheduling strategy in its original scheduler in order to schedule homology priority tasks through time slice round-robin. Implementation approach is given in detail. Firstly, the Task Control Block (TCB) is extended. And then, a new priority index table is created, in which each index pointer points to a set of homology priority tasks. Eventually, on the basis of reconstructing μC/OS-II real-time kernel, task scheduling module is rewritten. Otherwise, schedulability of homology task supported by modified kernel had been analyzed, and deadline formula of created homology tasks is given. By theoretical analysis and experiment verification, the modified kernel can support homology priority tasks scheduling, meanwhile, it also remains preemptive property of original μC/OS-II. [ABSTRACT FROM AUTHOR] |
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| Βάση Δεδομένων: |
Complementary Index |