NUMA-aware memory allocation

US9886313B2 · kind B2 · utility

Assignee

• SAP SE · DE

Inventors

• Mehul Wagle · Pune, IN
• Daniel Booss · Angelbachtal, DE
• Ivan Schreter · Malsch, DE

Key dates

• Filing date: Aug 3, 2015
• Grant date: Feb 6, 2018
• Expiry date: Aug 3, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F9/5016
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A system includes a first node including a first processor and a first memory, and a second node including a second processor and a second memory. A worker thread of the first processor calls an allocation API to allocate a portion of the first memory, and calls a first allocator of a first memory manager associated with the first node to allocate a specified size of the first memory. The first memory manager calls an operating system function to reserve a memory segment of the specified size, sets a first Non-Uniform Memory Access policy of the first node to preferred, binds the reserved memory segment to the first node, adds the memory segment to a global freelist, and returns an address pointer of the reserved memory segment to the worker thread.