Invention Grant
- Patent Title: Second-level branch target buffer bulk transfer filtering
- Patent Title (中): 二级分支目标缓冲区批量传输过滤
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Application No.: US13524306Application Date: 2012-06-15
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Publication No.: US09280351B2Publication Date: 2016-03-08
- Inventor: James J. Bonanno , Ulrich Mayer , Brian R. Prasky
- Applicant: James J. Bonanno , Ulrich Mayer , Brian R. Prasky
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Margaret McNamara
- Main IPC: G06F9/38
- IPC: G06F9/38 ; G06F9/30

Abstract:
Embodiments relate to second-level branch target buffer bulk transfer filtering. An aspect includes a system for second-level branch target buffer bulk transfer filtering. The system includes a first-level branch target buffer and a second-level branch target buffer coupled to a processing circuit. The processing circuit is configured to perform a method. The method includes receiving branch target buffer miss indicators, receiving instruction cache miss indicators, and recording information about the branch target buffer miss indicators and the instruction cache miss indicators in search trackers. Based on detecting, by the processing circuit, a search tracker representing a correlated pair of the branch target buffer miss indicators and the instruction cache miss indicators, the search tracker is activated by the processing circuit to perform a bulk transfer from the second-level branch target buffer to the first-level branch target buffer.
Public/Granted literature
- US20130339693A1 SECOND-LEVEL BRANCH TARGET BUFFER BULK TRANSFER FILTERING Public/Granted day:2013-12-19
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