Features

Following are some of the major features that Verisium vPerformer offers for load testing web applications:

Automated Graphical Test Script Generation

You can record and test your entire application in minutes by simply pointing and clicking
on your Web application. Without any programming, all objects are automatically captured and recorded as a graphical script which shows the steps in your script in the form of an icon-based tree.

Scripting and JavaScript API

vPerformer provides extensibility from the simplicity of graphical scripts to your own fully customized JavaScript based scripts. vPerformer also provides a comprehensive JavaScript API that you can use to create customized test scripts.

Data Driven Tests

A single test, recorded once can be re-used with varying input and response data to test the
functional correctness of your application with multiple data sources. Data driven test
scripts save time and provide consistency to the testing process.

Environment Simulation

vPerformer can simulate infrastructure configurations of web applications and user-agents such as low bandwidth, multiple IP addresses, and user delays. This simulation is important to be able to accurately emulate real world scenarios.

External Monitoring

vPerformer can monitor the state of any associated external component that influences the behavior of your application. These components include web servers, application servers, database servers, operating systems, network devices, and SNMP implementations of various vendors. This allows users to to identify performance bottlenecks and pinpoint the source of the performance problem. External components that can be monitored by vPerformer include Windows, Unix/Linux, Perfmon, JMX, SNMP, Network, Apache, Microsoft IIS, Tomcat, Jboss, Macromedia Jrun, Sun Application Server, Microsoft ASP Pages, Oracle Application Server, Novell exteNd, BEA WebLogic, IBM Websphere, Oracle Database, IBM DB2, Microsoft SQL Server, MySQL, PostrgreSQL.

Test Organization

With the vPerformer Recorder, detailed and elaborate test cases spanning multiple interfaces and complex Web communication can be organized as separate jobs.

Browser Simulation

vPerformer accurately simulates browser requests and automatically validates server responses which closely correlate with a real user's behavior.

Virtual Users

vPerformer can run same scripts multiple times to simulate thousands of virtual users to test scalability and performance under stress.

Interactive Analysis

With vPerformer, a user can change the number and type of virtual users to try different scenarios by varying the loading conditions or application settings. A user can even view the actual pages seen by virtual users to aid in debugging.

Powerful Graph and Reporting Tools

With vPerformer, a user can view real-time reports and graphs that indicate response times, error rates, number of users and other test statistics such as hits and pages per second.

Distributed Agents

vPerformer can simulate virtual users on a single machine or distributed machines located anywhere on a LAN or WAN, with a single point of control.

Post-run Analysis

vPerformer provides a comprehensive set of graphs and reports at varying levels of granularity to analyze application performance. Result data can also be exported to external programs such as Microsoft Excel for further analysis.