Invention Grant
- Patent Title: Linked miss-to-miss instruction prefetcher
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Application No.: US16929208Application Date: 2020-07-15
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Publication No.: US11561796B2Publication Date: 2023-01-24
- Inventor: Naga P. Gorti , Mohit Karve
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Daniel M. Yeates
- Main IPC: G06F9/38
- IPC: G06F9/38 ; G06F12/08 ; G06F12/0862 ; G06F12/0875

Abstract:
A computer-implemented method to prefetch non-sequential instruction addresses (I/A) includes, determining, by a prefetch system, a first access attempt of a first I/A in a cache is a first miss, wherein the first I/A is included in a string of I/A's. The method further includes storing the first I/A in a linked miss-to-miss (LMTM) table. The method also includes determining a second access attempt of a second I/A in the cache is a second miss, wherein the second I/A is included in the string of I/A's. The method includes linking, in the LMTM table, the second miss to the first miss. The method also includes prefetching, in response to a third access attempt of the first I/A, the second I/A in the cache.
Public/Granted literature
- US20220019440A1 LINKED MISS-TO-MISS INSTRUCTION PREFETCHER Public/Granted day:2022-01-20
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