Systems and methods for adaptive hybrid hardware prefetching
CN115715390BActive Publication Date: 2025-11-14HUAWEI TECH CO LTD
Patent Information
- Application Number
- CN202080101466.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-05-30
- Filing Date
- 2020-07-02
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2040-07-02
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Figure CN115715390B_ABST
Abstract
An apparatus includes a processor core and a memory hierarchy. The memory hierarchy includes main memory and one or more caches between the main memory and the processor core. A plurality of hardware prefetchers are coupled to the memory hierarchy, and prefetch control circuitry is coupled to the plurality of hardware prefetchers. The prefetch control circuitry is configured to compare changes in one or more cache performance metrics over two or more sampling intervals and to control the operation of the plurality of hardware prefetchers in response to changes in one or more performance metrics between at least a first sampling interval and a second sampling interval.
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Citation Information
Patent Citations
Selectively dropping prefetch requests based on prefetch accuracy information
US20130138887A1