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. 07, 2020
Filed:
Oct. 29, 2018
Vmware, Inc., Palo Alto, CA (US);
Rajesh Venkatasubramanian, San Jose, CA (US);
Ishan Banerjee, Santa Clara, CA (US);
Julien Freche, Mountain View, CA (US);
Kiran Tati, Milpitas, CA (US);
Preeti Agarwal, San Jose, CA (US);
Xavier Deguillard, Mountain View, CA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
Techniques for efficiently purging non-active blocks in an NVM region of an NVM device while preserving large pages are provided. In one set of embodiments, a host system can receive a write request with respect to a data block of the NVM region, where the data block is referred to by a snapshot of the NVM region and was originally allocated as part of a large page. The host system can further allocate a new data block in the NVM region, copy contents of the data block to the new data block, and update the data block with write data associated with the write request. The host system can then update a level 1 (L1) page table entry of the NVM region's running point to point to the original data block.