发明申请
- 专利标题： Fine Grained Cache Allocation
- 专利标题（中）： 细粒度缓存分配
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申请号： US12509752申请日： 2009-07-27
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公开(公告)号： US20110022773A1公开(公告)日： 2011-01-27
- 发明人: Ramakrishnan Rajamony , William E. Speight , Lixin Zhang
- 申请人： Ramakrishnan Rajamony , William E. Speight , Lixin Zhang
- 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
- 主分类号： G06F12/08
- IPC分类号： G06F12/08 ; G06F12/00
摘要：
A mechanism is provided in a virtual machine monitor for fine grained cache allocation in a shared cache. The mechanism partitions a cache tag into a most significant bit (MSB) portion and a least significant bit (LSB) portion. The MSB portion of the tags is shared among the cache lines in a set. The LSB portion of the tags is private, one per cache line. The mechanism allows software to set the MSB portion of tags in a cache to allocate sets of cache lines. The cache controller determines whether a cache line is locked based on the MSB portion of the tag.
公开/授权文献
- US08543769B2 Fine grained cache allocation 公开/授权日：2013-09-24
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