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:
Dec. 20, 2016
Filed:
Mar. 05, 2013
Vmware, Inc., Palo Alto, CA (US);
Rajesh Venkatasubramanian, San Jose, CA (US);
Ishan Banerjee, Santa Clara, CA (US);
Kiran Tati, Santa Clara, CA (US);
Philip Peter Moltmann, Palo Alto, CA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
A technique for efficient swap space management creates a swap reservation file using thick provisioning to accommodate a maximum amount of memory reclamation from a set of one or more associated virtual machines (VMs). A VM swap file is created for each VM using thin provisioning. When a new block is needed to accommodate page swaps to a given VM swap file, a block is removed from the swap reservation file and a block is added to the VM swap file, thereby maintaining a net zero difference in overall swap storage. The removed block and the added block may be the same storage block if a block move operation is supported by a file system implementing the swap reservation file and VM swap files. The technique also accommodates swap space management of resource pools.