SandStorm is a load testing platform to test the server side performance of your web/mobile/cloud and big data applications. It's on-premise and cloud edition helps you to test your application both within and outside your organization's firewall.
Apache JMeter is a 100% pure Java desktop application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions. Apache JMeter may be used to test performance both on static and dynamic resources (files, Servlets, Perl scripts, Java Objects, Data Bases and Queries, FTP Servers and more). It can be used to simulate a heavy load on a server, network or object to test its strength or to analyze overall performance under different load types. You can use it to make a graphical analysis of performance or to test your server/script/object behavior under heavy concurrent load.
innotop is a powerful monitor for MySQL queries and status information. It is designed to monitor InnoDB transactions and internals, replication status, deadlocks, general queries and status values, and much more.
DTrace is a comprehensive dynamic tracing framework for the Solaris™ Operating Environment. DTrace provides a powerful infrastructure to permit administrators, developers, and service personnel to concisely answer arbitrary questions about the behavior of the operating system and user programs.
These tools are for use by developers so that they can create more robust applications. Especially of use to those developing multi-threaded applications in C++ with templates. Includes TCMalloc, heap-checker, heap-profiler and cpu-profiler.
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.
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).
TourBus is an intelligent website load testing tool. Allows for complicated testing scenarios including filling out forms, following redirects, handling cookies, and following links—all of the things you’d normally associate with a regression suite or integration testing tool. The difference is that TourBus also scales concurrently, and you can perform hundreds of complicated regression tests simultaneously in order to thoroughly load test your website.