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Priority scheduling method and system for solid state disks

A solid-state hard disk, priority technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc. The effect of delay jitter

Inactive Publication Date: 2017-11-21
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It may cause the request that the user prefers to be processed quickly not to be processed as quickly as possible

Method used

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  • Priority scheduling method and system for solid state disks
  • Priority scheduling method and system for solid state disks
  • Priority scheduling method and system for solid state disks

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Embodiment Construction

[0022] The core of the present invention is to provide a method and system for data processing priority scheduling in solid-state hard drives, which can prioritize frequently used requests according to user needs, reduce the delay jitter of commonly used requests, and lower priority requests or operations It will not be left on hold for a long time without being processed.

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention....

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Abstract

The invention discloses a priority scheduling method and system for solid state disks. The method includes the steps of by distributing different requests to queues with different priorities, judging whether or not the processing requests finished by current processing queues meet the demands of preset processing capacity values; if yes, conducting circular process on all queues according to the descending order of the priorities. Under different scenes and conditions, the priority of each queue is adjusted and the priority of a most frequent request is adjusted to rank the highest so that delay vibration of users' frequent requests can be decreased; additionally, each priority is assigned with a preset processing capacity value, and therefore requests in the queues with low priorities cannot be delayed for a long time and remain unprocessed. Therefore, the priority scheduling method and system for the solid state disks can preferentially process frequent requests of users according to the preset queue priorities and the processing capability values, reduce delay vibration of the frequent requests, and the requests or operations with low priorities can not be delayed for a long time and remain unprocessed.

Description

technical field [0001] The invention relates to the field of data storage, in particular to a method for priority scheduling in a solid-state hard disk. Background technique [0002] With the development of information technology, in the field of data storage, solid state disk (Solid State Disk, SSD) has 5-10 times the read and write speed compared to traditional mechanical hard disk, low power consumption, no noise, anti-vibration, low heat, volume Small and other characteristics, has been more and more applications. [0003] The main body of the solid state drive is actually a PCB board, and the most basic component on this PCB board is the control chip. Its main control chip is equivalent to the brain of the solid state drive. The second is to undertake the entire data transfer and data processing. [0004] In addition to processing the user's read and write requests, the solid-state disk also needs to handle garbage data collection (Garbage Collection, GC) read, write ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0659G06F3/0604G06F3/0679
Inventor 殷军博
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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