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. 06, 2018
Filed:
Jan. 19, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yoshimasa Tani, Kawasaki, JP;
Shuji Yamamura, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An arithmetic processing apparatus has OS arithmetic processing unit executing instruction of OS, general-purpose arithmetic processing units each executing an instruction other than OS, a shared cache unit including a shared cache memory, a cache control unit and a request selection circuit which selects a memory access request from the arithmetic processing units, and a data buffer temporarily storing data of the memory access request, and a memory access control unit controlling a memory access to a main memory. The shared cache unit has a memory access band control register to which either one or both of a first set value, which includes an entry criterion for the request selection circuit to enter the memory access request from OS arithmetic processing unit, and a second set value which sets a capacity of a storage area in the data buffer for storing the data are set.