method for testing the FTL algorithm performance of a solid state disk
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 not being objective and comprehensive enough, not representative of application scenarios, and unable to comprehensively examine SSD performance, etc.
Active Publication Date: 2019-05-31
GUANGDONG UNIV OF TECH
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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.
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[0025] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in this embodiment will be described clearly and completely with reference to the accompanying drawings in this embodiment. Obviously, the implementation described below The examples are only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0026] This embodiment provides a method for testing the performance of the solid-state drive FTL algorithm, which is suitable for performance testing application scenarios in the field of storage devices. The performance of the solid-state drive can be comprehensively investigated according to the actual working conditions of the solid-state drive. The solid-state dr...
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The invention relates to the technical field of storage equipment, and particularly discloses a method for testing the FTL algorithm performance of a solid state disk, which comprises the following steps: carrying out analytic statistics on load parameters when tasks of different scenes are carried out on a solid state disk, and formulating a plurality of different test cases according to an analytic statistics result; establishing an operation environment for each test case, and compiling a test script; Running the test script on the solid state disk, and recording performance parameters; Andevaluating the FTL algorithm performance of the solid state disk according to the performance parameters. The invention provides a method for testing the FTL algorithm performance of a solid state disk, which can comprehensively inspect the performance of an 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 a solid state hard disk FTL algorithm. Background technique [0002] Based on the performance 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 based on disk design. The disk is accessed as a block-device. Because Nand Flash has the characteristics of write-once and wear-out, solid state drives (SSDs) are used. ) When replacing the disk, the firmware layer FTL needs to be mapped. Specifically, FTL is the English abbreviation of Flashtranslation layer, and FTL is a software middle layer that is 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. [0...
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IPC IPC(8): G06F11/34
CPCY02D10/00
Inventor 林新惠韩国军方毅蔡国发
Owner GUANGDONG UNIV OF TECH