Facilitating transaction completion subsequent to repeated aborts of the transaction
First Claim
1. A computer program product for facilitating processing within a computing environment, said computer program product comprising:
- a non-transitory computer readable storage medium readable by a processing circuit and storing instructions for performing a method comprising;
tracking, by a processor of the computing environment, a number of times a transaction executing within the processor aborts, the tracking employing a counter within the processor to track the number of aborts;
determining whether the transaction has successfully completed, and based on the transaction successfully completing, automatically resetting the counter to a selected value;
based on the transaction aborting and there being an interrupt associated with the transaction, automatically setting the counter to a predefined value;
based on the transaction aborting, determining whether the transaction is to be re-executed, wherein the determining whether the transaction is to be re-executed comprises determining whether the counter has reached a threshold number of aborts for the transaction, and based on the counter not reaching the threshold number of aborts, determining whether an action is to be taken to facilitate successful completion of the transaction on re-execution and setting a program instruction address to a transaction begin instruction to re-execute the transaction; and
re-executing the transaction to facilitate successful completion of the transaction, based on determining the transaction is to be re-executed, wherein processing within the computing environment is facilitated.
1 Assignment
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Accused Products
Abstract
Processing of transactions within a computing environment is facilitated by taking actions to increase the chances of successfully executing a transaction. A counter is maintained that provides a count of how often a transaction has aborted. The counter increments the count each time the transaction is aborted, and it is reset to zero upon successful completion of the transaction or an interruption leading to no more re-executions of the transaction. If the count reaches a threshold value, then an interrupt is presented and transaction execution is unsuccessful. However, before the count reaches the threshold, a number of actions may be taken to increase the chances of successfully executing the transaction. These actions include actions to be performed within the processor executing the transaction, and/or actions to be performed against conflicting processors.
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Citations
20 Claims
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1. A computer program product for facilitating processing within a computing environment, said computer program product comprising:
a non-transitory computer readable storage medium readable by a processing circuit and storing instructions for performing a method comprising; tracking, by a processor of the computing environment, a number of times a transaction executing within the processor aborts, the tracking employing a counter within the processor to track the number of aborts; determining whether the transaction has successfully completed, and based on the transaction successfully completing, automatically resetting the counter to a selected value; based on the transaction aborting and there being an interrupt associated with the transaction, automatically setting the counter to a predefined value; based on the transaction aborting, determining whether the transaction is to be re-executed, wherein the determining whether the transaction is to be re-executed comprises determining whether the counter has reached a threshold number of aborts for the transaction, and based on the counter not reaching the threshold number of aborts, determining whether an action is to be taken to facilitate successful completion of the transaction on re-execution and setting a program instruction address to a transaction begin instruction to re-execute the transaction; and re-executing the transaction to facilitate successful completion of the transaction, based on determining the transaction is to be re-executed, wherein processing within the computing environment is facilitated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer system for facilitating processing within a computing environment, said computer system comprising:
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a memory; and a processor in communications with the memory, wherein the computer system is configured to perform a method, said method comprising; tracking, by the processor, a number of times a transaction executing within the processor aborts, the tracking employing a counter within the processor to track the number of aborts; determining whether the transaction has successfully completed, and based on the transaction successfully completing, automatically resetting the counter to a selected value; based on the transaction aborting and there being an interrupt associated with the transaction, automatically setting the counter to a predefined value; based on the transaction aborting, determining whether the transaction is to be re-executed, wherein the determining whether the transaction is to be re-executed comprises determining whether the counter has reached a threshold number of aborts for the transaction, and based on the counter not reaching the threshold number of aborts, determining whether an action is to be taken to facilitate successful completion of the transaction on re-execution and setting a program instruction address to a transaction begin instruction to re-execute the transaction; and re-executing the transaction to facilitate successful completion of the transaction, based on determining the transaction is to be re-executed, wherein processing within the computing environment is facilitated. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A computer-implemented method of facilitating processing within a computing environment, said computer-implemented method comprising:
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tracking, by a processor of the computing environment, a number of times a transaction executing within the processor aborts, the tracking employing a counter within the processor to track the number of aborts; determining whether the transaction has successfully completed, and based on the transaction successfully completing, automatically resetting the counter to a selected value; based on the transaction aborting and there being an interrupt associated with the transaction, automatically setting the counter to a predefined value; based on the transaction aborting, determining whether the transaction is to be re-executed, wherein the determining whether the transaction is to be re-executed comprises determining whether the counter has reached a threshold number of aborts for the transaction, and based on the counter not reaching the threshold number of aborts, determining whether an action is to be taken to facilitate successful completion of the transaction on re-execution and setting a program instruction address to a transaction begin instruction to re-execute the transaction; and re-executing the transaction to facilitate successful completion of the transaction, based on determining the transaction is to be re-executed, wherein processing within the computing environment is facilitated. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification