The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2013
Filed:
Nov. 12, 2012
Avaya Inc., Basking Ridge, NJ (US);
Jon Louis Bentley, New Providence, NJ (US);
Frank John Boyle, Denver, CO (US);
Anjur Sundaresan Krishnakumar, Princeton, NJ (US);
Parameshwaran Krishnan, Basking Ridge, NJ (US);
John H. Meiners, Boulder, CO (US);
Navjot Singh, Denville, NJ (US);
Shalini Yajnik, Berkeley Heights, NJ (US);
Avaya Inc., Basking Ridge, NJ (US);
Abstract
An apparatus and method for improving performance in high-availability systems are disclosed. In accordance with the illustrative embodiment, pages of memory of a primary system that are to be shadowed are initially copied to a backup system's memory, as well as to a cache in the primary system. A duplication manager process maintains the cache in an intelligent manner that significantly reduces the overhead required to keep the backup system in sync with the primary system, as well as the cache size needed to achieve a given level of performance. Advantageously, the duplication manager is executed on a different processor core than the application process executing transactions, further improving performance.