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. 24, 2021
Filed:
Jun. 26, 2020
Huawei Technologies Co., Ltd., Guangdong, CN;
Chunhua Tan, Chengdu, CN;
Weiqiang Jia, Hangzhou, CN;
Ding Li, Hangzhou, CN;
Wenqiang Yang, Chengdu, CN;
Liyu Wang, Chengdu, CN;
Pengli Ji, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
In a data prefetching method, a storage device obtains a first sequence stream length and a first access count of a target logical block after execution of a first data access request is completed. When a second data access request is received, the storage device modifies the first sequence stream length to a second sequence stream length and modifies the first access count to a second access count. The storage device further calculates a sequence degree of the target logical block based on the second sequence stream length and the second access count, and performs a data prefetching operation when the sequence degree of the target logical block exceeds a first prefetch threshold.