SmokePing is a network latency monitor. It measures network latency to a configurable set of destinations on the network, and displays its findings in easy-to-read Web pages. SmokePing has support for distributed monitoring as well as for dealing with dynamic IP addresses. SmokePing uses RRDtool as its logging and graphing back-end, making the system very efficient. The presentation of the data on the Web is done through a CGI with some AJAX capabilities for interactive graph exploration.
coNCePTuaL is a domain-specific programming language for rapidly generating programs that measure the performance and/or test the correctness of networks and network protocol layers. A few lines of coNCePTuaL code can produce programs that would take significantly more effort to write in a conventional programming language.
Apache Hello World Benchmarks is a benchmarking tool that seeks to give a sense of Web application execution speed on various software platforms running under the Apache Web server. Benchmarks can vary greatly from system to system, so this tool allows one to get numbers on one's own platform. Applications tested include mod_perl, mod_php, Tomcat, and Apache::ASP, with over 62 benchmarks in all.
Aranha is an application that uses an XML-RPC layer to retrieve information from one or more servers. The type of information gathered is implemented via plugins, and can be displayed or archived in several different ways. The data is gathered in Round Robin Databases (integrated with rrdtool) and can be accessed using a XUL interface available from the system. Plugins are very easy to write.
The Router Audit Tool (rat) downloads configurations of router devices running IOS to be audited, and then checks them against the settings defined in the benchmark. For each configuration examined, it produces a report listing the following: a list of each rule checked with a pass/fail score, a raw overall score, a weighted overall score (1-10), and a list of IOS commands that will correct problems identified.
ethstats is a script that quickly measures network device throughput. It works by parsing the /proc/net/dev file that the Linux kernel maintains, and thus utilizes a negligible amount of CPU time. ethstats shows the throughput of each device in both megabits per second and packets per second.
This program was written to help test the Open Projects dancer-ircd. It simulates client activity by selecting random servers to connect to and random actions out of a list. It can handle hundreds of simultaneous connections, and can replay a log file of what it has previously done in order to help isolate the actions which cause the daemon to have problems, using methods such as binary chops. Please note that although at this point code is only written to test ircds, it is hoped that this will be extended in the future to other types of daemons.