Method and system for perfetching data in a bridge system
US6502157B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1999 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Mar 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4059
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a bridge system and method for prefetching data to return to a read request from an agent. The bridge system includes at least one memory device including a counter indicating a number of prefetch operations to perform to prefetch all the requested data, a first buffer capable of storing prefetch requests, and a second buffer capable of storing read data. Control logic implemented in the bridge system includes means for queuing at least one prefetch operation in the first buffer while the counter is greater than zero. The control logic then executes a queued prefetch operation, subsequently receives the prefetched data, and stores the prefetched data in the second buffer. The stored prefetched data is returned to the requesting agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.