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:
Apr. 13, 2021
Filed:
Jul. 11, 2019
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Vinicius Gottin, Rio de Janeiro, BR;
Tiago Calmon, Rio de Janeiro, BR;
Romulo D. Pinho, Niterói, BR;
Jonas F. Dias, Rio de Janeiro, BR;
Eduardo Sousa, Niterói, BR;
Roberto Nery Stelling Neto, Rio de Janeiro, BR;
Hugo de Oliveira Barbalho, Rio de Janeiro, BR;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A pre-fetching technique determines what data, if any, to pre-fetch on a per-logical storage unit basis. For a given logical storage unit, what, if any, data to prefetch is based at least in part on a collective sequential proximity of the most recently requested pages of the logical storage unit. Determining what, if any, data to pre-fetch for a logical storage unit may include determining a value for a proximity metric indicative of the collective sequential proximity of the most recently requested pages, comparing the value to a predetermined proximity threshold value, and determining whether to pre-fetch one or more pages of the logical storage unit based on the result of the comparison. A data structure may be maintained that includes most recently requested pages for one or more logical storage units. This data structure may be a table.