Hardware transactional memory with software-defined conflicts
نویسندگان
چکیده
منابع مشابه
Hardware Acceleration of Software Transactional Memory
Transactional memory (TM) systems seek to increase scalability, reduce programming complexity, and overcome the various semantic problems associated with locks. Software TM proposals run on stock processors and provide substantial flexibility in policy, but incur significant overhead for data versioning and validation in the face of conflicting transactions. Hardware TM proposals have the advan...
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In this report, we describe a number of Hardware Transactional Memory (HTM) designs and their basic mechanisms used for better programmability and higher performance than conventional synchronization techniques based on locking. We compare the systems considering their programming model, hardware design challenges, transactional dataset constraints and forward progress guarantees. As high-speed...
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Transactional memory has been proposed as a general and flexible way to allow programs to read and modify disparate primary-memory locations atomically as a single operation, much as a database transaction can atomically modify many records on disk. Hardware transactional memory supports atomicity through architectural means, whereas software transactional memory supports atomicity through lang...
متن کاملRefereeing Conflicts in Transactional Memory Systems
In the search for high performance, most transactional memory (TM) systems execute atomic blocks concurrently and must thus be prepared for data conflicts. These conflicts must be detected and the system must choose a policy in terms of when and how to manage the resulting contention. Conflict detection essentially determines when the conflict manager is invoked, which can be dealt with eagerly...
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ژورنال
عنوان ژورنال: ACM Transactions on Architecture and Code Optimization
سال: 2012
ISSN: 1544-3566,1544-3973
DOI: 10.1145/2086696.2086710