发明授权
US08140760B2 I-cache line use history based done bit based on successful prefetchable counter
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基于成功预取计数器的I-cache行使用基于历史的完成位
- 专利标题: I-cache line use history based done bit based on successful prefetchable counter
- 专利标题(中): 基于成功预取计数器的I-cache行使用基于历史的完成位
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申请号: US12473337申请日: 2009-05-28
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公开(公告)号: US08140760B2公开(公告)日: 2012-03-20
- 发明人: David A. Luick
- 申请人: David A. Luick
- 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: Cantor Colburn LLP
- 主分类号: G06F12/08
- IPC分类号: G06F12/08 ; G06F12/00
摘要:
A method of providing history based done logic for a I-cache includes receiving an I-cache line in an L2 cache; determining if the I-cache line is unprefetchable; aging the I-cache line without a delay if the I-cache line is prefetchable; and aging the I-cache line with a delay is the I-cache line is unprefetchable.
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