While previous articles we have loooked upon the website request response in more single user scenario. This may not be the case as most of company website / web product would be used by thousands/ millions of user. Some transaction might be used by few thousands users while some might be used by millions.It is advisable to properly test your website with more real life user distribution and this cannot happen by manually and we need to automate the process.We need tools support and we have broadly categorize the tool into two classes
1. Open Source
2. Commercial
There might be more subtle difference before you choose a tool like protocol support, vusers support , learning curve etc. Since our discussion is limited to web application we will focus on HTTP protocol here. The tools in open source category are OpenSTA, Jmeter while on another side commercial tools like LoadRunner , WebLoad, Rational tools. We choose Jmeter for our testingfor below reasons
How to Install
Since it is open source you can do a quick googling , binging and get the executable download. More precisely you can go to
http://jmeter.apache.org/index.html and under download on left pane there is Download Releases latest is 2.9 version with prerequisites for java 6 . Under the binaries you can get the .zip or .tgz based on the operating system you are planning to install.For some reason you want to install older version you can go to Archives and download the version interested in.
Jmeter Launch
Once you have extracted the files , you will see bin,docs,extras,lib,printabledocs and few auxiliary files. You need to got to the bin folder and launch the jmeter.bat file this will launch the Jmeter and you will see something as below. The left pane on below screen contains the Elements of Jmeter and right pane is for configuration the settings for these elements.
We will talk more about the elements in jmeter in our next session and also touch base on some key terminologies in performance testing.
1. Open Source
2. Commercial
There might be more subtle difference before you choose a tool like protocol support, vusers support , learning curve etc. Since our discussion is limited to web application we will focus on HTTP protocol here. The tools in open source category are OpenSTA, Jmeter while on another side commercial tools like LoadRunner , WebLoad, Rational tools. We choose Jmeter for our testingfor below reasons
- Jmeter can be used for testing static and dynamic resource
- Can support heavy load i.e. users
- Great analysis for the performacne results/metrics
- High extensible with support on javascript/groovy etc to enhance the script.
- And Lastly No License Cost!!
How to Install
Since it is open source you can do a quick googling , binging and get the executable download. More precisely you can go to
http://jmeter.apache.org/index.html and under download on left pane there is Download Releases latest is 2.9 version with prerequisites for java 6 . Under the binaries you can get the .zip or .tgz based on the operating system you are planning to install.For some reason you want to install older version you can go to Archives and download the version interested in.
Jmeter Launch
Once you have extracted the files , you will see bin,docs,extras,lib,printabledocs and few auxiliary files. You need to got to the bin folder and launch the jmeter.bat file this will launch the Jmeter and you will see something as below. The left pane on below screen contains the Elements of Jmeter and right pane is for configuration the settings for these elements.
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