Recording Script for Jmeter with BadBoy tool

Hi! Today we will see, how to record script For static website(those web-page which doen't have any connection to sql server) with badboy tool.

1. Badboy tool is an simple automation tool. With this tool we can record script and can export as jmeter script (.jmx).

2. First install badboy tool, download link is http://www.badboy.com.au/download. You can easily download it for thi link.

3. Install it, and start,   Now follow the tutorial.....

4. To show you, how to record script tking exampe of  simple website

link is : http://www.sarahhayes.co.uk/

5. So you see how easy is this. try it...

For any query mail: digvijaybisht29@gmail.com

Bye..  : )

Sample Interview Questions on Jmeter

Basic Questions:


Q1: What is the use of Jmeter?
Ans: Jmeter is an open source desktop application software, 100% pure Java application, which is designed to perfom load testing of web based application.

Q2: Is it mandatory to install java first, to run jmeter?
Ans: Yes, Jmeter is an java based application. So you should install java 1.5 or later version in your system.

Q3: Can we do regression testing with Jmeter?
Ans: Yes we can, after-all it is all about java-script. :)

Q4: How we can run jmeter?
Ans: By simply clicking on Jmeter.bat, or by using commnad: C:\>Jmeter

Q5: What are the options, do you see when jmtere window opens?
Ans: 1. Test Plan     2. Workbench

Q6: Which component, do we need to add, to record script?

Ans: We need to add Http proxy server, by simply right clicking on Workbench > Non-Test elements > Http proxy server.

Also need to enable proxy, with port 8080, by going to internet settings> Connections > Lan. Name will be "localhost".

Then click on start button on jmeter http proxy server window.

Q7: Can we perform load testing of database with jmeter?
Ans: Yes we can. To see the process follow: Database load testing with jmeter link. You should be aware of sql queries.

Q8: What are listeners in Jmeter?
Ans: Listeners in jmeter are used to capture the response data of load test. We can have response data (result) in , cvs, image (graph) or in html format.

Q9: Name 4-5 listeners in jmeter, which are commonly used.
Ans: 1. View result tree 2. Summary report 3. Aggregate Graph 4. Response time vs thread 5. Composite graph

Q10: What is Response time in Jmeter report?
Ans: Response time in Jmeter report, is the time taken by web server, to answer the requested query. In simple words, it is the time taken by a web server to respond the http request.

Q11: What is median in jmeter listener?
Ans:  It is a number which divides the samples into two equal halves. Half of the samples are smaller than the median, and half are larger.

Q12: What is throughput in jmeter listener?
Ans: Throughput is relation between time and data.It shows the relation between http request and unit time. Means how many requests are processed in how much time.

Throughput = Number of requests / Time(second or millisecond)

Q13: Which Jmeter elements are used for Parameterization?
Ans: 1. User parameter 2. CSV Data Set config

Q14: Which controllers are used as an conditional controllers in jmeter?
Ans: If controller and While controller

Q15: What is heap size in jmeter?
Ans: Jmeter is work in java, and heap size is related to java. Java heap is the heap size allocated to JVM applications which takes care of the new objects being created. If the objects being created exceed the heap size, it will throw an error of java.lang.out.of.memory.
Java's default heap size limit in Jmeter is 256 MB.

Q16: Is it possible that, if we increase the heap size in Jmeter, then application(jmeter) might not work?
Ans: Yes, it is possible. Because heap size depends upon the empty space of your machine in c drive as well as your RAM. If the RAM is 1 Gb and you increased the heap 2048, it may not work.

How to monitor server,s system performance while running Jmeter

This is the big question , when you are putting load on webserver from your computer or using distributed load testing, what is behaviour of server's computer..Server's computer behaviour means at the time of load what is cpu performane, network performance, i/o. So we need to monitor thise things also. But as i have practiced i was not be able to do distributed load testing and also monitoring the cpu performane of server's computer. For that what you can do?I will tell you waht i have tried. I open two jmeter windows. In one window i did distributed load testing, and in another i used the same script but with single thread (user), and check on forever, and added the server performance monitor listners. What it will do? It will run one user in loop till you will not stop the test and also provide you the server's computer performance. Because one user will create that much diffreence according to me.
First i will tell you have to add plugins in jmeter for listners.

For that you have to download  jmeter plugin.jar for the jmeter version you are using. Now extract jmeter plugin and copy jmeter plugin.jar file to c:/jmeter/lib/ext. And from the extracted file you will also get the server agent folder. Copy the server agent folder to the web server's computer and past it in c: drive. Explore server agent folder at server's end and start start agent.bat file.

Now you should know the server's computer ip. Like we have the server ip is 192.168.45.89.

Now from your computer start jmeter and add-:

After clicking server performance monitor you will see the window like:-

In this window you will be able to see add row,copy row and delete row.And clickig on add row the window will be like:-

Here below Host/Ip where local host is written you have to type the ip of server's computer.And the port will be by default set to 4444 till no changes done at the server end.

Also you will be able to see cpu,memory,swap,disksI/O,NetworksI/O.From here you can select single object at a time.If you want to see all the details at the same time,so you can add server performance monitor from thread group-add-listners,and then can select another object.

Remember first you have to record or open the test then add the listners.

Now when you will start the test you will be able to see the server's performance selecting server performance monitor.

I think this blog may helpful to you for this senario..

Thank you