Magnetic disk energy consumption optimization method based on request dynamic delay dispatching

Abstract

The invention discloses a magnetic disk energy consumption optimization method based on request dynamic delay dispatching and aims at solving the technical problem to dynamically regulate the magnetic disk dispatching delay time, possibly delay the dispatching moment on the premise of meeting the request average response time requirement and reduce the magnetic disk energy. The method has the technical scheme that a magnetic disk request dispatching system consisting of a queuing system and a submitting system is built, the queuing system receives data reading and writing requests, sequences the requests and submits the sequenced requests to the submitting system, and the submitting system carries out statistics on the request average response time in the dispatching delay time and dynamically regulates the dispatching delay time according to the set request average response time threshold. When the method is adopted, the magnetic disk channel finding distance can be shortened, and the magnetic disk channel finding time is reduced, so the magnetic disk busy time is reduced, the magnetic disk energy consumption is reduced, and in addition, the condition of too long request average response time caused by delay processing request of the magnetic disk is eliminated through dynamically regulating the delay time.

Description

technical field [0001] The invention relates to an energy consumption optimization method for disk scheduling, in particular to a method for optimizing disk energy consumption by dynamically adjusting scheduling delay time. Background technique [0002] The magnetic disk is the main component of the storage system, mainly composed of a magnetic head, a magnetic head arm, a drive motor, and a disk. Data in a disk is stored on the platters inside the disk. Data is organized on the platter as cylinder / track / sector. Each platter is divided into tracks, and each track is a concentric circle on the platter. Tracks at the same location on multiple different platters form a cylinder. Each track is divided into multiple different sectors, and a sector is the basic unit for reading and writing data on a disk. The process of reading and writing the requested data is the access process of the magnetic head to the sector. The structure diagram of the disk is as follows figure 1 sho...

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Problems solved by technology

How to dynamically adjust the scheduling delay time to avoid excessive request response time due to delayed scheduling, and at the same time ensure disk energy saving is a technical issue that is of great concern to those skilled in the art. At present, there is no disk energy based on request dynamic delay scheduling Public Reports on Optimization Methodology Techniques

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