Checkpointing in speculative versioning caches
US8521961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Apr 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1405
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Mechanisms for generating checkpoints in a speculative versioning cache of a data processing system are provided. The mechanisms execute code within the data processing system, wherein the code accesses cache lines in the speculative versioning cache. The mechanisms further determine whether a first condition occurs indicating a need to generate a checkpoint in the speculative versioning cache. The checkpoint is a speculative cache line which is made non-speculative in response to a second condition occurring that requires a roll-back of changes to a cache line corresponding to the speculative cache line. The mechanisms also generate the checkpoint in the speculative versioning cache in response to a determination that the first condition has occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.