System and Process Monitor in Java provides a JNI (Java Native Interface) implementation for monitoring global system resources and processes (outside JVM) via a unified (cross-platform) interface. The Java interface and all native libraries are compiled into a single JAR and are loaded transparently on any architecture upon request. It should be easy to embedd this code into your Java applications, either as a separate JAR or as one single application archive.
TAU (Tuning and Analysis Utilities) is a set of tools for analyzing the performance of C, C++, Fortran and Java programs. It collects much more information than is available through prof or gprof, the standard Unix utilities, including per-process, per-thread, and per-host information, inclusive and exclusive function times, profiling groups that allow you to organize data collection, access to hardware counters on some systems, per-class and per-instance information, the ability to separate data for each template instantiation, start/stop timers for profiling arbitrary sections of code, and support for collection of statistics on user-defined events.
TTG is a small command line utility that displays current throughput (bandwidth usage) on an interface of a remote device such as router, switch, firewall, etc., over SNMP. You can think of TTG as command line version of STG, or a high-interval/ad-hoc query/test tool for MRTG, etc. The output is very similar to the ping command. You can use it to quickly check/measure traffic before waiting the 5 minute cycle when configuring MRTG, as a means of using the data in text form (e.g. copy and paste into an email or spreadsheet), or just as a general purpose command line network administration aid.
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.
Tsung is a distributed load testing tool. It is protocol-independent and can currently be used to stress HTTP, WebDAV, PostgreSQL, MySQL, LDAP, AMQP, and XMPP/Jabber servers. It simulates user behavior using an XML description file, reports many measurements in real time (statistics can be customized with transactions, and graphics generated using gnuplot). For HTTP, it supports 1.0 and 1.1, has a proxy mode to record sessions, supports GET, POST, PUT, and DELETE methods, cookies, and basic/digest authentication. It also has support for SSL, WebSocket, and BOSH.
UnixBench provides a basic indicator of the performance of a Unix-like system. Multiple tests are used to test various aspects of the system's performance. These test results are then compared to the scores from a baseline system to produce an index value, which is generally easier to handle than the raw scores. The entire set of index values is then combined to make an overall index for the system. Some very simple graphics tests are included to measure the 2D and 3D graphics performance of the system. Multi-CPU systems are handled. If your system has multiple CPUs, the default behaviour is to run the selected tests twice: once with one copy of each test program running at a time, and once with N copies, where N is the number of CPUs.