Invention Grant
- Patent Title: Multi-core processor snoop filtering
- Patent Title (中): 多核处理器窥探过滤
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Application No.: US12402244Application Date: 2009-03-11
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Publication No.: US08868847B2Publication Date: 2014-10-21
- Inventor: Jeffry Gonion
- Applicant: Jeffry Gonion
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/08 ; G06F12/10

Abstract:
Systems, methods, and devices for reducing snoop traffic in a central processing unit are provided. In accordance with one embodiment, an electronic device includes a central processing unit having a plurality of cores. A cache memory management system may be associated with each core that includes a cache memory device configured to store a plurality of cache lines, a page status table configured to track pages of memory stored in the cache memory device and to indicate a status of each of the tracked pages of memory, and a cache controller configured to determine, upon a cache miss, whether to broadcast a snoop request based at least in part on the status of one of the tracked pages in the page status table.
Public/Granted literature
- US20100235586A1 MULTI-CORE PROCESSOR SNOOP FILTERING Public/Granted day:2010-09-16
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