SLAMD is a Java application designed for stress testing and performance analysis of network-based applications. Although it was originally designed for benchmarking directory servers, it is actually very flexible and can be used to test applications using a wide range of protocols like LDAP, HTTP, POP, IMAP, and SMTP, and can also interact with relational databases using JDBC. In addition, it provides a Java-based API for developing custom workloads, and a scripting engine and record and playback tools that may also be used in the load generation process.
JSystem is a testing framework which enhances JUnit with support for the needs of system or functional testing. Tests are written in Java. JSystem encourages the testing of business logic apart from the user interface, and it provides tools to keep project maintenance to a minimum. JSystem focuses on 4 key factors: maintainability, visibility, scalability, and simplicity.
NeoLoad is a load testing tool for Web applications. By simulating a large number of users accessing your application, it tests the robustness and performance of a server under different loads. A clear and comprehensive test report pinpoints errors and bottlenecks and answers questions about the number of users a site can handle, if the site will crash under load, and what the response times are. It is user friendly and very easy to use, requiring no scripting, and allows you to design advanced scenarios to handle real world applications.
TRIPP is a utility to rewrite incoming and outgoing IP packets. Since it can rewrite both headers and payload, it can be used to configure the TCP/IP stack behavior in order to perform various tasks mainly intended for network tests, simulations, and development. It is configured via a small rule-based language, which allows the user to intercept packets, set arbitrary header values, increment or decrement numeric header fields, set an arbitrary payload, rewrite parts of the payload, or fragment, delay, multiply, or drop packets. It is totally user-level and doesn't require a kernel module.
NTMF is a C++ framework for developing software that requires the manipulation of packets traversing a system. The main application areas are protocol testing, protocol implementation testing, network emulation, and network monitoring. It has support for link level packet capturing (using libpcap), link level packet injection, and network level packet injection for IPv4 packets (using lipnet). It supports multi-threaded execution, provides thread-safe packet queues, and provides a dynamic Finite State Machine representation.
FunkLoad is a functional and load Web tester whose main use cases are functional testing of Web projects (and thus regression testing as well), performance testing, load testing (such as volume testing or longevity testing), and stress testing. It can also be used to write Web agents to script any Web repetitive task.
iogen is an I/O generator. It forks child processes that each run a mix of reads and writes. The idea is to generate heavily fragmented files to make the hardware suffer as much as possible. This tool has been used to test filesystems, drivers, firmware, and hardware devices. It is by no means meant as a performance measuring tool since it tries to recreate the worst case scenario I/O.