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:
Aug. 13, 2019
Filed:
Dec. 21, 2015
Western Digital Technologies, Inc., Irvine, CA (US);
Mark David Erickson, Mantorville, MN (US);
Adam Christopher Geml, Rochester, MN (US);
Darin Edward Gerhart, Oronoco, MN (US);
Nicholas Edward Ortmeier, Rochester, MN (US);
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Abstract
A method includes receiving, by a hardware controller of a storage device and from a host device, a command to read data from or write data to a non-volatile memory device of the storage device. The method includes, responsive to receiving the command: initializing, by firmware executing at a processor of the hardware controller, a command to retrieve data from or write data to the non-volatile memory device; determining, by circuit logic of the hardware controller, a time indicative of when the firmware initialized the command; determining, by the circuit logic, a time indicative of when the command terminated; and storing, by the circuit logic and at a latency monitoring cache of the storage device, a timestamp associated with the time indicative of when the command was initialized and a timestamp associated with the time indicative of when the command terminated.