Speculative cache line write backs to avoid hotspots
US6119205A · kind A · utility
84Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1997 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Dec 22, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0804
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A cache system including a data cache memory comprising a plurality of cache lines. A tag store has an entry representing each line in the cache memory where each entry comprises tag information for accessing the data cache. The tag information includes state information indicating whether the represented cache line includes dirty data. A speculative write back unit monitors the state information and is operative to initiate a write back of a cache line having more than a preselected amount of dirty data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.