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===== Transactional Memory − A Short Introduction =====

Transactional memory (TM) is a new computation paradigm in which
processes of an application communicate using lightweight, in-memory
transactions. Basically, a process that wants to access a shared data
structure executes some operations on this structure inside a
transaction. When the transaction commits, all these operations appear
as if they took place instantaneously, at some single, unique point in
time. When the transaction aborts, however, all the operations are
roll-backed and their effects are never visible to other transactions.

The TM paradigm is argued to be as easy to use as coarse-grained
locking, and nearly as efficient on multi-core systems as
hand-crafted, fine-grained locking. It is thus not surprising to see a
large body of work dedicated towards implementing the paradigm and
exploring its limitations.

== How Good is a Transactional Memory Implementation? ==

We evaluate transactional memory (TM) implementations, both on theoretical and
experimental ground. We ask:

  * What are the inherent limitations and trade-offs of transactional memory,
  * How expensive are some of the guarantees a TM implementation may provide, and
  * Which algorithms/frameworks perform best.

start.txt · Last modified: 2010/11/10 10:51 by transactions

Dieses Dokuwiki verwendet ein von Anymorphic Webdesign aus Oldenburg erstelltes Thema.

Transactions

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