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Lamport's bakery algorithm is a computer algorithm devised by computer scientist Leslie Lamport, as part of his long study of the formal correctness of concurrent systems, which is intended to improve the safety in the usage of shared resources among multiple threads by means of mutual exclusion.
Lamport's bakery algorithm uses a similar concept of a "ticket" or "counter" but does not make the use of atomic hardware operations. It was designed for fault tolerance rather than performance. Rather than all processors continuously examining the release counter, the bakery lock spins on examining the tickets of its peers. [3]
the Paxos algorithm for consensus, the bakery algorithm for mutual exclusion of multiple threads in a computer system that require the same resources at the same time, the Chandy–Lamport algorithm for the determination of consistent global states (snapshot), and; the Lamport signature, one of the prototypes of the digital signature.
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Dekker's algorithm; Peterson's algorithm; Lamport's bakery algorithm [7] Szymański's algorithm; Taubenfeld's black-white bakery algorithm [2] Maekawa's algorithm; These algorithms do not work if out-of-order execution is used on the platform that executes them. Programmers have to specify strict ordering on the memory operations within a ...
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