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A test method for the performance of solid-state hard disk ftl algorithm

A technology of solid-state hard drives and testing methods, which is applied in hardware monitoring, energy-saving computing, climate sustainability, etc., and can solve problems such as inability to reflect the influence of cold and hot data, inability to represent application scenarios, inability to comprehensively examine SSD performance, etc.

Active Publication Date: 2022-07-12
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the FTL algorithm performance test of SSD is only a simple test of sequential read and write and random read and write of SSD, and generally compares the output results of the two, and uses this to evaluate the performance of SSD, which is not objective and comprehensive enough.
[0004] It is understandable that the existing FTL algorithm performance test of SSD is not objective and comprehensive, mainly because the test cases used cannot represent a real application scenario (generally, real application scenarios should not only have sequential read and write or only random read and write), and each test case is independent of each other, and cannot reflect the impact of hot and cold data
[0005] Therefore, the existing FTL algorithm performance testing methods cannot comprehensively examine the performance of SSDs.

Method used

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  • A test method for the performance of solid-state hard disk ftl algorithm
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Embodiment Construction

[0025] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in this embodiment will be described clearly and completely below with reference to the accompanying drawings in this embodiment. Obviously, the implementation of the following description Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] This embodiment provides a method for testing the performance of a solid-state disk FTL algorithm, which is suitable for performance testing application scenarios in the field of storage devices, and can comprehensively inspect the performance of the solid-state disk according to the actual working conditions of the solid-state disk. The solid-state dis...

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Abstract

The invention relates to the technical field of storage devices, and specifically discloses a method for testing the performance of a solid-state hard disk FTL algorithm. use case; build a running environment for each test case, write a test script; run the test script on the solid-state drive, and record performance parameters; evaluate the FTL algorithm performance of the solid-state drive according to the performance parameters . The invention provides a method for testing the performance of the FTL algorithm of a solid-state hard disk, which can comprehensively examine the performance of the SSD.

Description

technical field [0001] The invention relates to the technical field of storage devices, in particular to a method for testing the performance of an FTL algorithm of a solid-state hard disk. Background technique [0002] Based on the requirements for high reliability, low latency, and low power consumption, storage devices are gradually shifting from disk storage to solid-state storage (using Nand Flash as the medium). The current file system is designed based on the disk, and the disk is accessed as a block-device. Due to the write-once and wear-out characteristics of Nand Flash, a solid-state drive (SSD) is used. ) instead of the disk, it needs to be mapped into the firmware layer FTL. Specifically, FTL is the English abbreviation of Flash translation layer, and FTL is a software middle layer used to simulate flash memory as a virtual block device, so that block device file systems such as FAT can be implemented on the flash memory. FTL can make SSDs store like disks. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/34
CPCY02D10/00
Inventor 林新惠韩国军方毅蔡国发
Owner GUANGDONG UNIV OF TECH