JMeter
What is JMeter
Open Source Tool from Apache, mainly for
performance testing but JMeter is designed to cover categories of tests like
load, functional, regression, etc.
·
Java Based Window
Application.
·
Support many type of
applications like HTTP, Web Service, LDAP, JDBC, Java, FTP etc.
·
Support Distributed
Testing: So that we can distribute load on multiple machine, so that we can
simulate load on server, network or object which are coming from different
machine to implement real world scenario.
·
Record & Playback
– Record the user activity on the browser and simulate them in web application
using JMeter.
How does JMeter works
JMeter simulates a group of users sending requests to a target server, and
returns statistics data/information of the target server/application via
tables, graphs, etc.
Performance Testing
In Performance testing, we analyze the system over a period of time under
different conditions.
Condition can be Normal and Abnormal
Under Large number of user, Database size constant.
Under constant number of users with increase DB size.
Increase both, number of users and database size.
Load Testing : It is performed in normal
conditions like if application is supposed to work on 100 users then we perform
load testing from 90-110 users.
The aim of this testing is to find out at what point application performance
will start to degrade.
Stress Testing : It is performed in abnormal
conditions, like if application is designed for 100 users, we will apply much
more users than 100.
The aim of this type of testing is to find at what point application will
break.
Volume testing : In volume testing application
is tested under heavy database size.
Steps to Install JMeter
Step 1: Check / Install JAVA
Check, Java is installed in your system, should have jvm1.4+, and Environment
variable JAVA_HOME is set.
Step 2: Download JMeter : Download zip from
http://jmeter.apache.org/download_jmeter.cgi
Step 3: Unzip it.
Step 4: Launch JMeter
Once the unzipping is done go to Jmeter Folder, Bin Directory, click on
Jmeter.bat file, Jmeter will run.
- now right click on highlighted area of inspected element.
