Patent · US Active

Memory allocation and recovery strategies for byte-addressable non-volatile RAM (NVRAM)

US10019331B2 · kind B2 · utility

4Cited by

2References

20Claims

0Family size

Assignee

SAP SE · DE

Inventors

Daniel Booss · Angelbachtal, DE
Ivan Schreter · Malsch, DE
Ismail Oukid · Berlin, DE
Adrien Lespinasse · Grenoble, FR

Key dates

Filing date	Dec 17, 2015
Grant date	Jul 10, 2018
Priority date	—
Expiry date	Apr 7, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG06F2201/805
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Disclosed herein are innovations in memory management and data recovery for systems that operate using storage class memory (SCM), such as non-volatile RAM (NVRAM). The disclosed innovations have particular application to production database systems, where reducing database downtime in the event of a system crash is highly desirable. Embodiments of the disclosed technology can address a variety of problems that exist during a system crash. For example, embodiments of the disclosed technology can be used to address the loss of the physical memory mapping and/or the loss of the CPU cache that typically occurs in the event of a system crash. Furthermore, embodiments of the disclosed technology can be used to prevent data inconsistency and/or memory leak problems that may arise in the event of a system crash.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.