Heal leveling
US9348748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2014 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jan 13, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Technology is described that increases endurance of memory devices through heal leveling. Heal leveling is a lightweight solution to distribute healing cycles among memory blocks. Approaches described herein can accomplish heal leveling without introducing a large amount of overhead. Heal leveling significantly improves the access performance and the effective lifetime of memory blocks. By more evenly distributing the heal count it may not be necessary to directly apply wear leveling based on access counts of each block because each block will be more evenly accessed in the long run. Heal leveling may be performed by moving data that is seldom or never modified after creation, such as read-only files, to blocks having suffered the greatest number, or a high number, of healing cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.