发明授权
- 专利标题: Instruction type issue throttling upon reaching threshold by adjusting counter increment amount for issued cycle and decrement amount for not issued cycle
- 专利标题(中): 指令类型问题通过调整发行周期的计数器增量量和未发布周期的减量量来达到阈值
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申请号: US13285361申请日: 2011-10-31
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公开(公告)号: US09009451B2公开(公告)日: 2015-04-14
- 发明人: Daniel C. Murray , Andrew J. Beaumont-Smith , John H. Mylius , Peter J. Bannon , Toshi Takayanagi , Jung Wook Cho
- 申请人: Daniel C. Murray , Andrew J. Beaumont-Smith , John H. Mylius , Peter J. Bannon , Toshi Takayanagi , Jung Wook Cho
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- 代理商 Rory D. Rankin
- 主分类号: G06F9/30
- IPC分类号: G06F9/30 ; G06F1/32 ; G06F9/38 ; G06F11/30
摘要:
A system and method for reducing power consumption through issue throttling of selected problematic instructions. A power throttle unit within a processor maintains instruction issue counts for associated instruction types. The instruction types may be a subset of supported instruction types executed by an execution core within the processor. The instruction types may be chosen based on high power consumption estimates for processing instructions of these types. The power throttle unit may determine a given instruction issue count exceeds a given threshold. In response, the power throttle unit may select given instruction types to limit a respective issue rate. The power throttle unit may choose an issue rate for each one of the selected given instruction types and limit an associated issue rate to a chosen issue rate. The selection of given instruction types and associated issue rate limits is programmable.
公开/授权文献
- US20130111191A1 PROCESSOR INSTRUCTION ISSUE THROTTLING 公开/授权日:2013-05-02
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