Method and management system for adjusting prefetch operation

By adjusting the parameters of pre-fetch operations in the storage device, such as setting and adjusting the pre-fetch distance, the problem that pre-fetch operations in the prior art fail to effectively consider the input/output mode, achieving more efficient data storage and retrieval, and improving system performance.

JP7649634B2Active Publication Date: 2025-03-21SAMSUNG ELECTRONICS CO LTD
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Patent Information

Application Number
JP2020158486
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-05-29
Filing Date
2020-09-23
Publication Date
2025-03-21
Estimated Expiration
2040-09-23

AI Technical Summary

Technical Problem

In the prior art, when performing pre-fetch operations, the input/output mode is not effectively considered, resulting in pre-fetch operations that may cause burden on the system or waste bandwidth, affecting system performance.

Method used

Optimize data storage and retrieval of pre-fetch operations by setting pre-fetch distances, accessing pre-fetch trigger keys, setting target keys, and adjusting pre-fetch distances. Specific steps include increasing the pre-fetch distance, reducing the pre-fetch distance, verifying whether the pre-fetch buffer overflows, and re-initializing the pre-fetch operation if necessary.

Benefits of technology

By dynamically adjusting the parameters of pre-fetch operations, the efficiency of data storage and retrieval is improved, the burden on the system is reduced, and the utilization of input/output bandwidth is optimized, thereby improving system performance.

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Abstract

To provide a method of adjusting prefetch operations, which improves data storage and retrieval.SOLUTION: A method of adjusting prefetch operations is provided, comprising setting a prefetch distance, accessing a prefetch-trigger key, setting a target key outside the prefetch distance from the prefetch-trigger key, increasing the prefetch distance, and successfully fetching a subsequent target key of a subsequent prefetch-trigger key from a prefetch read-ahead buffer.SELECTED DRAWING: Figure 1
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