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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Poll<strong>in</strong>g Server<br />
T 1 = (3,1), T 2 = (10,4), Poller =(2.5, 0.5)<br />
Poller<br />
T 1<br />
T 2<br />
0 2.5 5.3<br />
9<br />
0 3 6 9<br />
0 3 6 9<br />
A<br />
0.1<br />
0.8<br />
Poll<strong>in</strong>g Server<br />
IL2212 Embedded Software 19<br />
l� <strong>Aperiodic</strong> jobs that arrive after the release<br />
time of the poller must wait until next poll<strong>in</strong>g<br />
period<br />
l� Execution budget is not preserved<br />
l� Simple to prove correctness<br />
IL2212 Embedded Software 20<br />
10
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