Performing mode switching in an unbounded transactional memory (UTM) system
US8095824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2009 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Dec 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, the present invention includes a method for selecting a first transaction execution mode to begin a first transaction in a unbounded transactional memory (UTM) system having a plurality of transaction execution modes. These transaction execution modes include hardware modes to execute within a cache memory of a processor, a hardware assisted mode to execute using transactional hardware of the processor and a software buffer, and a software transactional memory (STM) mode to execute without the transactional hardware. The first transaction execution mode can be selected to be a highest performant of the hardware modes if no pending transaction is executing in the STM mode, otherwise a lower performant mode can be selected. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.