Idletime Scheduling with Preemption Intervals - Lars Eggert
Idletime Scheduling with Preemption Intervals - Lars Eggert
Idletime Scheduling with Preemption Intervals - Lars Eggert
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20<br />
Implementation<br />
• localized modifications to FreeBSD 4.7<br />
• disk: replace disksort()<br />
• network: new ALTQ discipline, tag packets<br />
• begin PI <strong>with</strong> FG request, not at end = simplify code<br />
• expectation: PI < service time ineffective<br />
• PI expires while FG active, system degenerates<br />
into priority queue<br />
<strong>Lars</strong> <strong>Eggert</strong> <br />
2005-10-26
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