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:
Jan. 01, 2019
Filed:
Jun. 13, 2017
Applicant:
Sap SE, Walldorf, DE;
Inventors:
Assignee:
SAP SE, , DE;
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0608 (2013.01); G06F 3/0631 (2013.01); G06F 3/0641 (2013.01); G06F 17/30327 (2013.01);
Abstract
Disclosed herein are system, method, and computer program product embodiments for defragmentation of persistent main memory (e.g., storage class memory). An embodiment operates by determining that a request to allocate a block of persistent main memory cannot be fulfilled, identifying the largest block of a plurality of free blocks associated with a persistent allocator, and punching a hole at the location of the block within a segment of the persistent main memory. The embodiment further operates by determining that at least one neighboring block of the largest block is also a hole, and coalescing the at least one neighboring block and the largest block.