Tracking temporal use associated with cache evictions
US7925834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Aug 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/123
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for tracking temporal use associated with cache evictions to reduce allocations in a victim cache is disclosed. Access data for a number of sets of instructions in an instruction cache is tracked at least until the data for one or more of the sets reach a predetermined threshold condition. Determinations whether to allocate entry storage in the victim cache may be made responsive in part to the access data for sets reaching the predetermined threshold condition. A micro-operation can be inserted into the execution pipeline in part to synchronize the access data for all the sets. Upon retirement of the micro-operation from the execution pipeline, access data for the sets can be synchronized and/or any previously allocated entry storage in the victim cache can be invalidated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.