Multi-Mechanize is an open source framework for web performance and load testing. It allows you to run simultaneous python scripts to generate load (synthetic transactions) against a web site or web service.
Nagios is an Open Source host, service and network monitoring program. The monitoring daemon runs intermittent checks on hosts and services you specify using external "plugins" which return status information to Nagios. When problems are encountered, the daemon can send notifications out to administrative contacts in a variety of different ways (email, instant message, SMS, etc.). Current status information, historical logs, and reports can all be accessed via a web browser.
NeoLoad is a Load Testing and Stress Tool for Web Applications. By simulating a large number of users accessing your application, NeoLoad tests the robustness and the performance of the server under different loads. A clear and comprehensive test report pinpoints errors and bottlenecks.
NLoad is a free and open source load testing framework for .NET, intended for load testing your code and figuring out how many concurrent operations your code can handle. NLoad can be used for load testing websites, WCF services, CPU intensive algorithms or small bits of code to identify bottlenecks before releasing your software.
Nouvola is an online load testing to detect performance issues and correct potential failures. It features: – Quick and easy configuration – Virtual user generation – Traffic pattern detection, stable and linear ramp – Traffic models representing multiple user behaviors – Easy integration with developer workflows
Open Twebst is an open source web automation framework + web recorder for Internet Explorer that can be used within any environment that supports COM, from scripting languages JScript, VBScript to higher level programming languages C#, VB.Net, VBA/Excel, C++.
OpenPavilion is a free surveillance suite made for observing, monitoring and benchmarking your applications and networks. There are many independent tools being distributed with databases, servers, network components, applications and operating systems. But every tool needs an own operator and monitoring tasks. There was no free OpenSource tool that united all these values inside a holistic monitoring dashboard - that is where OpenPavilion comes to play: OpenPavilion allows people to span mixed perspectives on business and technical aspects. OpenPavilion displays comprehensive relationships using simple to understand dashboard views.
OpenSTA is a distributed software testing architecture designed around CORBA. The current toolset has the capability of performing scripted HTTP and HTTPS heavy load tests with performance measurements from Win32 platforms.
OPNET Panorama is an application monitoring and analysis software that delivers comprehensive performance management for critical Java and .NET applications throughout the application lifecycle, beginning with development and QA, and continuing through deployment and operations. Panorama continuously monitors thousands of system and application metrics within each server, across all tiers, and automatically spots performance anomalies with advanced deviation tracking.
Netflow Generator creates artificial NetFlow Version 5 data streams without the need for NetFlow compatible hardware. It is the perfect tool for testing the NetFlow functionality of PRTG or other NetFlow compatible programs. NetFlow Generator runs on a PC and sends NetFlow 5 Packets (via UDP) to a specific target computer which processes the data. You can create various patterns and loads of traffic. While the simulator is active it will create NetFlow packets which contain information about the selected traffic pattern. These packets contain the same information as a router/switch would send if it saw the simulated traffic pattern (the simulated traffic itself is not generated).