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A Level
Can short jobs wait less?
Drag rule tiles to both gates. Run so this queue's average Ready wait meets its target.
CPU work
total→leftReady
entry orderRunning
one CPUBlocked
I/O wait
total→leftReady
entry orderRunning
one CPUBlocked
I/O wait
State history
Solid CPU · pale Ready wait · hatched Blocked I/O.
One CPU, known CPU work and no context-switch cost. Ready wait excludes Running and Blocked time.