- 专利标题: Scope resolution tag buffer to reduce cache miss latency
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申请号: US16146687申请日: 2018-09-28
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公开(公告)号: US10831659B2公开(公告)日: 2020-11-10
- 发明人: Srinivas B. Purushotham , Naveen Miriyalu , Venkata K. Tavva
- 申请人: International Business Machines Corporation
- 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
- 代理机构: Law Office of Jim Boice
- 主分类号: G06F12/0811
- IPC分类号: G06F12/0811 ; G06F12/0891 ; G06F12/0895 ; G06F12/0888
摘要:
A method handles cache misses using a Scope Resolution Tag Buffer (SRTB). A cache controller assigns each data block in L2 cache with an n-bit value, where the n-bit value describes a quantity of occurrences in which the data block has been accessed, and where the cache controller increments the n-bit value in one or more data blocks in the first level memory cache each time the one or more data blocks are accessed. The cache controller evicts a particular data block from the L2 cache, and stores a particular data block address where the particular data block is now stored in a Scope Resolution Tag Buffer (SRTB). The information in the SRTB is used to locate which cache or memory contains the particular data block in the event of a subsequent cache miss in the L2 cache.
公开/授权文献
- US20200104258A1 SCOPE RESOLUTION TAG BUFFER TO REDUCE CACHE MISS LATENCY 公开/授权日:2020-04-02
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