What are the advantages and disadvantages of using jmeter as a testing tool?

Answer 1

Advantages :

It is an open source non functional testing tool so that the frame work can be expanded

Performance testing can be done using jmeter.

Using jmeter we can also do load testing and stress testing.

It can be used in an distributed environment

No Scripting lang or any programing knowledge is required to use Jmeter

It is a java based cross platform tool

Answer 2

Benefits from using a simple tool like JMeter are:

It’s free!
It’s easy to use. It has a simple and intuitive GUI. This encourages you to use it from the start while you’re developing your application
It’s open source. You may modify it or add new features--if you have the time and skills

The drawbacks are

It’s open source! There’s no guarantee of support or further development. However, I don’t consider this a real problem with a tool like JMeter, which easily can be replaced by another tool.
Getting "correct" response times from JMeter forces you to understand how to make a realistic client/server setup. If you’re not careful you might end up measuring some incidental bottleneck, like your own workstation’s capacity. On the other hand, I guess that you’d have to consider things like this with any tool!