Mechanism for effectively caching streaming and non-streaming data patterns
US8108614B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 31, 2007 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Apr 30, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/6028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for efficiently caching streaming and non-streaming data is described herein. Software, such as a compiler, identifies last use streaming instructions/operations that are the last instruction/operation to access streaming data for a number of instructions or an amount of time. As a result of performing an access to a cache line for a last use instruction/operation, the cache line is updated to a streaming data no longer needed (SDN) state. When control logic is to determine a cache line to be replaced, a modified Least Recently Used (LRU) algorithm is biased to select SDN state lines first to replace no longer needed streaming data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.