We propose a new design for an energy-efficient hardware transactional memory (HTM) system for power-aware embedded devices. Prior hardware transactional memory designs proposed a small, fully-associative transactional cache at the same level as the L1 cache. We propose an alternative design that unifies the transactional and L1 caches, and provides a small victim cache to reduce effects of cap...

In this paper, we present a flexible framework for extending a component model with transactions. We first discuss key issues of combining components with transactions, and different approaches to achieve an appropriate level of transactional functionality in components. We distinguish between the explicit and implicit component participation approaches that differ by whether a component implem...

Hybrid transactional memory (HyTM) [3] works in today’s systems, and can use future “best effort” hardware transactional memory (HTM) support to improve performance. Best effort HTM can be substantially simpler than alternative “unbounded” HTM designs being proposed in the literature, so HyTM both supports and encourages an incremental approach to adopting HTM. We introduce Phased Transactional...

Concurrent programming holds the key to fully utilizing the multi-core chips provided by CMPs. However, traditional concurrent programming techniques based on locking mechanisms are hard to code and error-prone. Transactional Programming is an attempt to simplify concurrent programming where transactions are the main concurrent construct. Hardware Transactional Memory systems provide hardware s...

With the Internet changing from era Web1.0 of computers’ interaction to era Web2.0 of users’ interaction, the development of transactional community has become the key solution to combine economic value with social value in social commerce. Transactional community is different from traditional social community in its relationship establishment because of the unique motivations of their members....

This paper argues that caching, atomicity and layering are fundamental to persistent systems, and that the transactional object cache architecture, as an embodiment of these concerns, provides a foundation for high performance persistent system construction. Central to the paper is a description of the semantics of an abstract transactional object cache architecture that supports a wide range o...

Transactions are contracts that guarantee a consistent, transparent, individual system state transition and their use is widespread in many different kinds of computing systems. Some well known standards (e.g. CORBA) include the specification of services that provide transactional properties. In this paper, we present a formal method for the systematic synthesis of transactional middleware base...

The transactional workkows (TWF) model can be regarded as a merging point of extended transaction models and general workkow model, it emphasizes both transactional aspect and business process aspect. In this report, we present a hierarchical approach for representing transactional workkows and discuss both transactional and business process aspects that a TWF should capture. We also introduce ...

I have adapted STAMP benchmarks [1] for use with the MPARM simulator in order to evaluate the performance of transactional cache configurations. We are primarily interested in evaluating energy consumption in multi-core mobile devices. There are two main hardware configurations being evaluated: a simple transactional cache (“vanilla TM”), and a victim cache configuration. In the vanilla configu...

It is generally agreed that one of the key services of componentbased systems are transactions. However, an agreement on how components should be involved in transactions is still missing. In this paper, we discuss some of the key issues of combining components with transactions, and different approaches to achieve an appropriate level of transactional functionality in components. We distinguis...