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:
May. 29, 2018
Filed:
Mar. 13, 2014
Emc Corporation, Hopkinton, MA (US);
Pengju Shang, Sunnyvale, CA (US);
Pranay Singh, Cupertino, CA (US);
George Mathew, Belmont, CA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A computer-implemented method is implemented to compress a file system namespace. The method starts with determining that a first leaf page of a hierarchical data structure of a storage system is sparse. The hierarchical data structure contains root node layer, intermediate node layer, and leaf page layer, where each leaf page contains namespace entries corresponding to a file or a directory of a file system, and where being sparse means a first size of the entries of the first leaf page is less than a first percentage. The method continues with identifying a second immediate adjacent leaf page as a merging candidate. The method continues with merging the second leaf page into the first leaf page upon determining that a second size of combined entries of the first and second leaf pages is less than a second percentage larger than the first percentage.