Logical buffer pool extension
US8874860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2012 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Apr 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/217
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for logical buffer pool extension identifies a page in a memory for eviction, and analyzes characteristics of the page to form a differentiated page. The characteristics of the page include descriptors that include a workload type, a page weight, a page type, frequency of access and timing of most recent access. The method also identifies a target location for the differentiated page from a set of locations including a fastcache storage and a hard disk storage to form an identified target location. The method further selects an eviction operation from a set of eviction operations using the characteristics of the differentiated page and the identified target location. The differentiated page is written to the identified target location using the selected eviction operation, where the differentiated page is written only to the fastcache storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.