libnodelay is an LD_PRELOAD library for disabling Nagle's algorithm. Disabling Nagle's algorithm can result in a performance improvement for latency-sensitive applications that use TCP. Using the library may be easier than digging through a mess of code and confusing or obscure configuration options.
Pylot is a tool for testing the performance and scalability of Web services. It runs HTTP load tests, which are useful for capacity planning, benchmarking, analysis, and system tuning. It generates concurrent loads, verifies server responses, and produces reports with metrics. Tests suites are executed and monitored from a GUI or the shell.
Ujorm is an easy-to-use ORM framework based on key-value objects. The framework was designed for rapid Java development with great performance and a small footprint. The key features are type safe queries, relation mapping by Java code, no entity states, and a memory overloading protection cache.
allmon is a generic system for collecting and storing various runtime metrics collections used for system performance, health, quality, and availability monitoring purposes. The system also provides a set of data-mining algorithms useful for further performance analysis. Allmon is designed to harvest different metrics values coming from many areas of monitoring infrastructure. The collected data are based on quantitative and qualitative performance and availability analysis. Allmon collaborates with other analytical tools for OLAP multidimensional analysis and data mining processing. The tool can be used for production as well as for development (profiling) and QA (load testing) purposes.
The goal of JavaMelody is to monitor Java or Java EE application servers in QA and production environments. It is a tool to measure and calculate statistics on the real operation of an application depending on the usage of the application by users. JavaMelody is easy to integrate in most applications. JavaMelody is mainly based on charts and statistics of requests, such as memory, CPU, HTTP, EJB, Spring, Guice, JSP, JSF, Struts, or SQL requests.
Torrus is an alternative software platform to MRTG, Cricket, and Cacti. In most cases it brings more flexibility and performance. It is able to poll more than 50,000 SNMP OIDs every 5 minutes from a single moderately equipped server, with simultaneous threshold monitoring of half of them. Torrus is designed to be a universal data series processing framework. Its scalable hierarchical design, application-independent core, and highly customizable architecture make it an attractive choice both for small installations and for big enterprise or carrier networks. Although most users deploy Torrus for SNMP monitoring, it might be useful for data series of any nature. Tobi Oetiker's RRDtool is used for data storage.
gprog is a basic GUI pipe meter that shows the percentage complete as data moves through a Unix pipe. It is very fast because it uses a dual process design with a cache oblivious algorithm for self-tuning. Also, the presentation is largely decoupled from the transfer, so that the GUI won't slow down the transfer.