Dynamically replicated memory

US8255742B2 · kind B2 · utility

Assignee

• Microsoft Corporation · US

Inventors

• Engin Ipek · Pittsford, US
• Jeremy P. Condit · Redmond, US
• Edmund B. Nightingale · Redmond, US
• Douglas C. Burger · Bellevue, US
• Thomas Moscibroda · Beijing, CN

Key dates

• Filing date: Nov 18, 2009
• Grant date: Aug 28, 2012
• Expiry date: Feb 24, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G11C2029/0409
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Dynamically replicated memory is usable to allocate new memory space from failed memory pages by pairing compatible failed memory pages to reuse otherwise unusable failed memory pages. Dynamically replicating memory involves detecting and recording memory faults, reclaiming failed memory pages for later use, recovering from detected memory faults, and scheduling access to replicated memory pages.