Concept

Two-phase locking

Related publications (40)

Improving OLTP Scalability Using Speculative Lock Inheritance

Anastasia Ailamaki, Frederick Ryan Johnson, Ippokratis Pandis

Transaction processing workloads provide ample request level concurrency which highly parallel architectures can exploit. However, the resulting heavy utilization of core database services also causes resource contention within the database engine itself a ...

2009

Cooperative Update Exchange in the Youtopia System

Christoph Koch

Youtopia is a platform for collaborative management and integration of relational data. At the heart of Youtopia is an update exchange abstraction: changes to the data propagate through the system to satisfy user-specified mappings. We present a novel chan ...

2009

Concurrent Programming Paradigms, A Comparison in Scala

Rachid Guerraoui, Martin Odersky, Mohsen Lesani

There is a rapid rise of multi-cores in recent hardware architectures. To exploit computational power of multi-core architectures, software should shift to be as concurrent as possible; and therefore should have concurrency control mechanisms. There are di ...

2009

Completeness and Nondeterminism in Model Checking Transactional Memories

Rachid Guerraoui, Vasu Singh

Software transactional memory (STM) offers a disciplined concurrent programming model for exploiting the parallelism of modern processor architectures. This paper presents the first \emph{deterministic} specification automata for strict serializability and ...

Springer2008

Completeness and Nondeterminism in Model Checking Transactional Memories

Rachid Guerraoui, Vasu Singh

Abstract. Software transactional memory (STM) offers a disciplined concurrent programming model for exploiting the parallelism of modern processor architectures. This paper presents the first deterministic specification automata for strict serializability ...

2008

Dynamic Prediction based Scheduling for TM

Anmol Tomar

Transactional memory (TM) provides an intuitive and simple way of writing parallel programs. TMs execute parallel programs speculatively and deliver better performance than conventional lock based parallel programs. However, in certain scenarios when an ap ...

2008

On the Correctness of Transactional Memory

Rachid Guerraoui, Michal Kapalka

Transactional memory (TM) is perceived as an appealing alternative to critical sections for general purpose concurrent programming. Despite the large amount of recent work on TM implementations, however, very little effort has been devoted to precisely def ...

2008

Opacity: A Correctness Condition for Transactional Memory

Rachid Guerraoui, Michal Kapalka

Transactional memory is perceived as an appealing alternative to critical sections for general purpose concurrent programming. Despite the large amount of recent work on transactional memory implementations, however, its actual specification has never been ...

2007

An analytic finite capacity queueing network model capturing blocking, congestion and spillbacks

Michel Bierlaire, Carolina Osorio Pizano

Analytic queueing network models often assume infinite capacity for all queues. For real systems this infinite capacity assumption does not hold, but is often maintained due to the difficulty of grasping the between-queue correlation structure present in f ...

2007

An Analytic Finite Capacity Queueing Network Model Capturing Congestion and Spillbacks

Michel Bierlaire, Carolina Osorio Pizano

Analytic queueing network models constitute a flexible tool for the study of network flow. These aggregate models are simple to manipulate and their analytic aspect renders them suitable for use within an optimization framework. Analytic queueing network m ...

2007

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