Methods and apparatus for removing data from a cache
US7685368B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2006 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Jan 19, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0253
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for removing data from a cache are disclosed. The data may be one or more objects that are stored in a first cache. Each object stored in the first cache has an associated reference that is stored in a second cache. Each such reference has an associated timer. As a program accesses an object stored in the first cache, the timer associated with its reference is reset. A harvester process parses through the second cache over a period of time, locking a section of the second cache and determining if any timers associated with references therein have timed out. The harvester process removes any such timed-out timers from the second cache. A garbage collection process parses through the first cache, removing any objects therein that do not have an associated reference in the second cache.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.