发明授权
- 专利标题: Cache architecture with distributed state bits
- 专利标题(中): 具有分布状态位的缓存结构
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申请号: US12429586申请日: 2009-04-24
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公开(公告)号: US08171220B2公开(公告)日: 2012-05-01
- 发明人: Ganesh Balakrishnan , Anil Krishna
- 申请人: Ganesh Balakrishnan , Anil Krishna
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理商 Yuanmin Cai; Khanh Tran
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
Embodiments that that distribute replacement policy bits and operate the bits in cache memories, such as non-uniform cache access (NUCA) caches, are contemplated. An embodiment may comprise a computing device, such as a computer having multiple processors or multiple cores, which has cache memory elements coupled with the multiple processors or cores. The cache memory device may track usage of cache lines by using a number of bits. For example, a controller of the cache memory may manipulate bits as part of a pseudo least recently used (LRU) system. Some of the bits may be in a centralized area of the cache. Other bits of the pseudo LRU system may be distributed across the cache. Distributing the bits across the cache may enable the system to conserve additional power by turning off the distributed bits.
公开/授权文献
- US20100275044A1 CACHE ARCHITECTURE WITH DISTRIBUTED STATE BITS 公开/授权日:2010-10-28
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