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This article mainly explains "what are the jmeter graphs and charts". The explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what are the jmeter graphs and charts"?

1 preface

Chart and graph class analysis element

2 various charts of Jmeter result analysis

I. Aggregate Graph aggregation Chart

The Aggregate Graph listener is used to display the test results in both tabular form (reports) and graphs.

This component adds a graphical display based on the aggregate report (Aggregate report), converts the data into a bar chart, and can edit the style of the graphical display, as shown in the following figure:

As you can see, the top half is the same as the aggregate report, and the bottom half is divided into Settings and Graph, one for editing styles and one for presentation.

Settings section:

1. Save graph: it is easy to save the chart.

2. Column settings: you can set the columns to be displayed (only the average columns are shown in the figure), as well as the font style of the column values, and you can also choose which label requests to display through column label selection.

3. Title and graph size: customize the text and style of the chart title and set the chart size.

4. Legend: sets the location and style of the legend (that is, the column name).

2. Assertion result Assertion Results

The assertion results listener is used to display the assertion result for each erroneous sampler response. It is advised to not use this listener during performance test as it is very resource intensive. It should be used while debugging and functional testing only.

The interface of the assertion result listener is very similar to the response assertion. It can uniformly display the assertion results of all requests for easy viewing.

If the assertion is correct, only the request name is displayed; if the assertion is incorrect, an error message is displayed.

You can also check Log errors only to display only incorrect assertions.

Of course, the premise of using it is that response assertions have been set for each request.

It is usually used only for functional testing and script debugging.

3. Response Time Graph response time chart

The response time graph is used to provide the graphical representation of response time with time elapsed during the test run.

This listener displays the request response time as a line chart for easy viewing. The interface is as follows:

You can see that the interface and settings are similar to the interface of the previous Aggregate Graph aggregation chart, which will not be discussed in detail.

4. Save Response to a file saves the response to the file

The save response to a file listener is used to store the sampler response in a file. This listener is used while functional testing or debugging the test script.

This listener is used to save the response results to a file, usually when functional testing or debugging test scripts.

There are many settings when saving a file, such as: save only failed responses, save only successful responses, add numbers to / do not add numbers to prefixes, add / no suffixes, add / no timestamps.

5. Graph Results of graphic result

The Graph results listener is used to display each sampler resuest's response time graph in terms of average, median, deviation and throughput.

This listener is used to show the aPCge, median, deviation, and throughput of the request response time, as shown in the following figure:

1. Does it seem messy at first glance? This is because all the items are displayed by default, including data, average, median, deviation, and throughput, which can be displayed separately as needed.

2. The meaning of the bottom parameter is as follows:

Number of samples: total number of requests

Latest sample: response time of the last request

Average: average response time for all requests

Deviation: the change of response time and the size of the measured value of dispersion, that is, the distribution deviation of the data. The smaller the value, the better.

Throughput: the number of requests processed by the server per minute, which is equivalent to TPS. Note that the unit is minutes.

Median: 50% percentile of the response time, that is, 50% of the request response time is less than this value

Look at the result tree with a table

This listener is used to display the response header information of each request. I think the best thing it can use is that it can display the start time, time spent, response status and so on of each request in order to facilitate the analysis of the results.

The meaning of the parameters in the figure has been basically mentioned before, and I will not repeat it here.

Thank you for your reading, these are the contents of "what are jmeter graphs and charts?" after the study of this article, I believe you have a deeper understanding of what jmeter graphs and charts have, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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