Cost-conscious pre-emptive cache line displacement and relocation mechanisms
US7454573B2 · kind B2 · utility
14Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2005 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Jul 13, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hardware based method for determining when to migrate cache lines to the cache bank closest to the requesting processor to avoid remote access penalty for future requests. In a preferred embodiment, decay counters are enhanced and used in determining the cost of retaining a line as opposed to replacing it while not losing the data. In one embodiment, a minimization of off-chip communication is sought; this may be particularly useful in a CMP environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.