Intel Corporation

Ben Hertzberg

Bratin Saha

Ali-Reza Adi-Tabatabai

Ali-Reza Adl-Tabatabai

Methods and systems are provided for managing memory allocations and deallocations while in transactional code, including nested transactional code. The methods and systems manage transactional memory operations by using identifiers, such as sequence numbers, to handle memory management in transactions. The methods and systems also maintain lists of deferred actions to be performed at transaction abort and commit times. A number of memory management routines associated with one or more transactions examine the transaction sequence number of the current transaction, manipulate commit and/or undo logs, and set/use the transaction sequence number of an associated object, but are not so limited. The methods and systems provide for memory allocation and deallocations within transactional code while preserving transactional semantics. Other embodiments are described and claimed.

System and method for allocating and deallocating memory within transactional code

Object-based conflict detection is described in the context of software transactional memory. In one example, a pointer is received for a block of instructions, the block of instructions having allocated objects. The lower bits of the pointer are masked if the pointer is in a small object space to obtain a block header for the block, and a size of the allocated objects is determined using the block header.

Object based conflict detection in a software transactional memory

Object-based conflict detection is described in the context of software transactional memory. In one example, a block of instructions is received for execution as an object in a software transactional memory transaction. The base of the object is computed, a lock is found for the object using the base of the object.

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Santa Cruz, CA, United States of America

Ben Hertzberg