Computer Systems (TOCS)


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ACM Transactions on Computer Systems (TOCS), Volume 27 Issue 4, December 2009

Zyzzyva: Speculative Byzantine fault tolerance
Ramakrishna Kotla, Lorenzo Alvisi, Mike Dahlin, Allen Clement, Edmund Wong
Article No.: 7
DOI: 10.1145/1658357.1658358

A longstanding vision in distributed systems is to build reliable systems from unreliable components. An enticing formulation of this vision is Byzantine Fault-Tolerant (BFT) state machine replication, in which a group of servers collectively act...

Selective replication: A lightweight technique for soft errors
Xavier Vera, Jaume Abella, Javier Carretero, Antonio González
Article No.: 8
DOI: 10.1145/1658357.1658359

Soft errors are an important challenge in contemporary microprocessors. Modern processors have caches and large memory arrays protected by parity or error detection and correction codes. However, today's failure rate is dominated by flip flops,...