Deadlock Avoidance

Banker's Algorithm

Dijkstra's deadlock avoidance algorithm. Enter the resource matrix and find the safe execution sequence.

Safety Check Safe Sequence Need Matrix

Banker's Algorithm: Checks if granting a resource request keeps the system in a "safe state" — a state where all processes can eventually complete.
Need[i][j] = Max[i][j] − Allocation[i][j] Safe if: Work ≥ Need[i] for some unfinished process

Configuration

Number of Processes

Number of Resource Types

Available Resources

Allocation Matrix

Maximum Matrix