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Performance test tool for block-level storage system

A storage system and testing tool technology, applied in error detection/correction, detection of faulty computer hardware, instruments, etc., can solve problems such as errors in storage system performance index observation values, and avoid performance evaluation results that are not intuitive and exist information noise effect

Inactive Publication Date: 2016-03-09
JIANGSU MORNING CLOUD INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing I / O record replay tools lack the ability to simply and accurately reproduce the I / O load, which tends to bring significant errors to the observed values ​​of storage system performance indicators

Method used

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  • Performance test tool for block-level storage system

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Experimental program
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Effect test

Embodiment Construction

[0018] According to attached figure 1 Described, a kind of block level storage system performance testing tool, comprises I / O record reader, I / O request controller, I / O launcher, result collector and result analyzer, I / O record reader Read the I / O records in the trace file. The content of each I / O record includes: disk number, start byte, total number of bytes accessed, request start time; the I / O request controller has three functions, Control the weight of the load, track the status of the I / O record and control the sending time of the I / O record; the I / O transmitter is responsible for submitting the I / O request asynchronously and handing it over to the system for processing; the result collector is in During the playback of I / O records, check the status of I / O reading and writing. When the I / O reading and writing is completed, collect the result data of the performance test into the result file.

[0019] 1. I / O request control

[0020] 1.1 Load weight control

[0021] IO...

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Abstract

The invention relates to a performance test tool for a block-level storage system. The performance test tool is used for generating a same I / O request load according to an I / O record of a real storage system and simulating real load change of a running environment to perform a performance test on the storage system. The performance test tool comprises an I / O record reader, an I / O request controller, an I / O transmitter, a result collector and a result analyzer, wherein the I / O record reader reads out I / O records in a trace file; the content of each I / O record comprises a disk number, a starting byte, a total byte number of access and request starting time; the I / O request controller has three functions of controlling the weight of a load, tracking a state of the I / O record and controlling transmission time of the I / O record; the I / O transmitter is in charge of asynchronously submitting an I / O request to the system for processing; and the result collector views an I / O reading or writing state in a process of playing the I / O record and collects result data of the performance test in a result file after the I / O reading or writing is completed.

Description

technical field [0001] The invention relates to a block-level storage system performance testing tool for generating the same I / O request load according to the I / O records from a real storage system to simulate the real load change of the operating environment, so as to test the performance of the storage system. Background technique [0002] In recent years, with the explosive growth of data and the rapid improvement of computing power, I / O-intensive applications put forward high-bandwidth, low-latency storage performance requirements. Block-level storage devices are widely used, and various access interfaces such as raw devices, file systems, databases, and cloud storage can be built on them. Therefore, developing a high-performance block-level storage system has always been a hot spot in the field of storage system research. Performance testing helps to determine the key factors affecting storage system performance, so that targeted analysis and improvement can be carrie...

Claims

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Application Information

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IPC IPC(8): G06F11/22
CPCG06F11/2221G06F11/2268
Inventor 葛春
Owner JIANGSU MORNING CLOUD INFORMATION TECH