Scheduling
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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→left
Ready
entry order
Running
one CPU
Blocked
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.