Compiler technique for efficient register checkpointing to support transaction roll-back
US8001421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2010 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Aug 13, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1407
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for efficient register checkpointing is herein described. A transaction is detected in program code. A recovery block is inserted in the program code to perform recovery operations in response to an abort of the first transaction. A roll-back edge is potentially inserted from an abort point to the recovery block. A control flow edge is inserted from the recovery block to a entry point of the transaction. Checkpoint code is inserted before the entry point to backup live-in registers in backup storage elements and recovery code is inserted in the recovery block to restore the live-in registers from the backup storage elements in response to an abort of the transaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.