Invention Grant
US08812822B2 Scheduling instructions in a cascaded delayed execution pipeline to minimize pipeline stalls caused by a cache miss
有权
在级联的延迟执行流水线中调度指令以最小化由缓存未命中引起的流水线停顿
- Patent Title: Scheduling instructions in a cascaded delayed execution pipeline to minimize pipeline stalls caused by a cache miss
- Patent Title (中): 在级联的延迟执行流水线中调度指令以最小化由缓存未命中引起的流水线停顿
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Application No.: US12048016Application Date: 2008-03-13
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Publication No.: US08812822B2Publication Date: 2014-08-19
- Inventor: David A. Luick
- Applicant: David A. Luick
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Patterson & Sheridan, LLP
- Main IPC: G06F9/30
- IPC: G06F9/30

Abstract:
A design structure embodied in a machine readable storage medium for designing, manufacturing, and/or testing a design for minimizing unscheduled D-cache miss pipeline stalls is provided. The design structure includes an integrated circuit device, which includes a cascaded delayed execution pipeline unit having two or more execution pipelines that begin execution of instructions in a common issue group in a delayed manner relative to each other, and circuitry. The circuitry is configured to receive an issue group of instructions, determine whether the issue group is a load instruction, and if so, schedule the load instruction in a first pipeline of the two or more execution pipelines, and schedule each remaining instruction in the issue group to be executed in remaining pipelines of the two or more pipelines, wherein execution of the load instruction in the first pipeline begins prior to beginning execution of the remaining instructions in the remaining pipelines.
Public/Granted literature
- US20080162895A1 DESIGN STRUCTURE FOR A MECHANISM TO MINIMIZE UNSCHEDULED D-CACHE MISS PIPELINE STALLS Public/Granted day:2008-07-03
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