Per-worker deque
Each worker has its own double-ended queue. Owner pushes/pops from head. LIFO for cache locality.
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Per-worker deque
Each worker has its own double-ended queue. Owner pushes/pops from head. LIFO for cache locality.
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Idle → steal
Worker with empty deque steals from TAIL of another. FIFO steal minimizes contention with owner's LIFO pop.