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Method and device for determining input-output scheduling algorithm

A scheduling algorithm, input and output technology, applied in the computer field, can solve problems such as the inability to improve IO performance, and achieve the effect of improving IO performance

Inactive Publication Date: 2010-06-16
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for determining an input-output scheduling algorithm, so as to solve the problem that the IO scheduling algorithm of the prior art cannot improve IO performance in various application scenarios of a hard disk

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  • Method and device for determining input-output scheduling algorithm
  • Method and device for determining input-output scheduling algorithm
  • Method and device for determining input-output scheduling algorithm

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] In order to make the above objects, features and advantages of the embodiments of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] refer to figure 1 , in Embodiment 1 of the present invention, implementing the method provided in Embodiment 1 of the present invention may include the following ...

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Abstract

The embodiment of the invention discloses a method and a device for determining an input-output scheduling algorithm. The method comprises the following steps: determining a characteristic model of an input-output (IO) request, selecting the IO scheduling algorithm according to the characteristic model; configuring relevant parameters for the selected IO scheduling algorithm according to the obtained hard disk parameters in advance; synchronizing the parameter information and characteristic model information to a hard disk firmware (FW), so that the hard disk FW selects a corresponding IO scheduling algorithm according to the characteristic model information; and configuring the corresponding IO scheduling algorithm according to the parameter information. According to the embodiment of the invention, the IO scheduling algorithm can be correlated with the concrete characteristic of the IO request, when the IO request has diversity under various application scenes of the hard disk in the actual application, the corresponding scheduling algorithm is selected according to different IO requests, thus executing the IO scheduling algorithm under various application scenes to achieve the purpose of promoting IO performance.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and device for determining an input-output (IO) scheduling algorithm. Background technique [0002] In a computer, a hard disk is a relatively common external memory, also known as a fixed disk, which consists of a disk coated with a metal material and a disk read-write device. Hard disks in computers have various application scenarios, such as database applications, streaming media applications, and backups. In different application scenarios, the IO characteristics of hard disks are also different. For example, in database applications, the IO characteristics are Discrete and the requested block size is small, generally around a few KB; while in streaming media applications, IO is partially continuous and the requested block size is large, generally around tens of KB. Because the block size of each IO request is not the same, and the discrete or continuous informati...

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Application Information

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IPC IPC(8): G06F3/06
Inventor 张巍
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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