Scheduling Aperiodic and Sporadic Jobs in Priority- Driven Systems
Scheduling Aperiodic and Sporadic Jobs in Priority- Driven Systems
Scheduling Aperiodic and Sporadic Jobs in Priority- Driven Systems
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Assumptions<br />
l� S<strong>in</strong>gle Processor<br />
l� Independent preemptable periodic tasks<br />
l� Parameters of all periodic tasks are known<br />
l� Periodic tasks meet their deadl<strong>in</strong>es<br />
l� <strong>Aperiodic</strong> <strong>and</strong> sporadic jobs are <strong>in</strong>dependent<br />
of each other<br />
l� Parameters of sporadic jobs become known<br />
after release<br />
System Model<br />
Rejected <strong>Jobs</strong><br />
<strong>Sporadic</strong><br />
<strong>Jobs</strong><br />
<strong>Aperiodic</strong><br />
<strong>Jobs</strong><br />
Periodic<br />
<strong>Jobs</strong><br />
Acceptance<br />
Test<br />
IL2212 Embedded Software 3<br />
In each queue jobs are sorted<br />
based on priority<br />
Processor<br />
IL2212 Embedded Software 4<br />
2
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