Reducing aborts caused by a runtime helper called during execution of a transaction block

摘要

A system and method for reducing the number of aborts caused by a runtime helper being called during the execution of a transaction block. When a runtime helper is called during the execution of a transaction block while a program using hardware transactional memory is running, the runtime helper passes ID information indicating the type of runtime helper to an abort handler. When there is an abort caused by a call to a runtime helper, the abort handler responds by acquiring the ID information of the runtime helper that caused the abort, disables the transaction block with respect to a specific type of runtime helper, executes the non-transactional path corresponding to the transaction block, and re-enables the transaction block when predetermined conditions are satisfied.

主权项

1. An abort reducing method for a computer to reduce the number of aborts while running a program using hardware transactional memory, the abort reducing method comprising the steps of:
(a) the computer running a runtime helper in response to a call to the runtime helper during execution of a transaction block; (b) the computer running an abort handler in response to an abort caused by the call to the runtime helper; and (c) the computer running a non-transactional path corresponding to the transaction block after the abort handler in (b) has been run; the execution of the runtime helper including the process of passing ID information indicating the type of runtime helper to the abort handler; and the execution of the abort handler including the processes of acquiring the ID information of the runtime helper causing the abort and disabling the transaction block with respect to a specific type of runtime helper.