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:
Sep. 28, 2010
Filed:
Apr. 27, 2007
Yuka Hosokawa, Kawasaki, JP;
Takaharu Ishizuka, Kawasaki, JP;
Makoto Hataida, Kawasaki, JP;
Toshikazu Ueki, Kawasaki, JP;
Yuka Hosokawa, Kawasaki, JP;
Takaharu Ishizuka, Kawasaki, JP;
Makoto Hataida, Kawasaki, JP;
Toshikazu Ueki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In an information processing system loaded with a CPU having cache and a system controller having a copy of a tag of the cache (snoop tag), and the CPU not issuing replacement information about the cache tag, the number of WAYs of the snoop tags in the system controller is larger than the number of WAYs of the cache tags in the CPU to reduce a cache miss rate and suppress the degradation of performance by suppressing excess replacement of the cache tags in the CPU.