Abstract: Performance testing is an process of determine the speed or effectiveness of a computer, network, software program or device. The focus of Performance testing is checking a software program's Speed - Determines whether the application responds very quickly, Scalability Determines maximum user load the software application can handle. Stability - Determines if the application is stable under varying loads. Performance testing mainly divided into Stress and Load testing. jMeter is a Open Source testing software. It is 100% pure Java application for load and performance testing. In this paper we discussed performance testing tools and proposed best Performance tool for web application Industry.

Keywords: Performance Testing, Types of performance testing, Load Testing, Stress testing, Volume testing, Scalability testing, JMeter, LoadRunner.