Home agent based cache transfer acceleration scheme
US11782848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2020 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Sep 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/62
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, apparatuses, and methods for implementing a speculative probe mechanism are disclosed. A system includes at least multiple processing nodes, a probe filter, and a coherent slave. The coherent slave includes an early probe cache to cache recent lookups to the probe filter. The early probe cache includes entries for regions of memory, wherein a region includes a plurality of cache lines. The coherent slave performs parallel lookups to the probe filter and the early probe cache responsive to receiving a memory request. An early probe is sent to a first processing node responsive to determining that a lookup to the early probe cache hits on a first entry identifying the first processing node as an owner of a first region targeted by the memory request and responsive to determining that a confidence indicator of the first entry is greater than a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.