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:
Mar. 23, 2021
Filed:
Sep. 29, 2017
Oracle International Corporation, Redwood Shores, CA (US);
Zuoyu Tao, Belmont, CA (US);
Jia Shi, Burlingame, CA (US);
Kothanda Umamageswaran, Sunnyvale, CA (US);
Juan R. Loaiza, Woodside, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
Data blocks are cached in a persistent cache ('NV cache') allocated from as non-volatile RAM ('NVRAM'). The data blocks may be accessed in place in the NV cache of a “source” computing element by another “remote” computing element over a network using remote direct memory access (“RMDA”). In order for a remote computing element to access the data block in NV cache on a source computing element, the remote computing element needs the memory address of the data block within the NV cache. For this purpose, a hash table is stored and maintained in RAM on the source computing element. The hash table identifies the data blocks in the NV cache and specifies a location of the cached data block within the NV cache.